How to Buy and Import Malleable Iron Pipe Fittings From China

by | Mar 23, 2022 | Industry Knowledge

If you are planning to import malleable iron pipe fittings from China, you must have a lot of questions.

  • How do I find a reliable factory in China?
  • How to ensure product quality?
  • How do I ship from China?

In this complete guide, you learn everything you need to know about buying malleable iron pipe fittings from China.

1. Why Importing Malleable Iron Pipe Fittings From China

When sourcing your malleable iron pipe fittings suppliers overseas, the first question is: which country should I source my product from?

Don’t worry. I’m not going to bore you with the reason like “China makes the product at low cost”.

1.1) Which country is the top exporter of malleable iron pipe fittings in the world?

I’d go straight to the answer, yes, China is the world’s largest exporter of malleable iron pipe fittings, exporting $744M in 2019, accounting for 34.5% of the world total.

1.2) Which country is the top importer of malleable iron pipe fittings in the world?

Similar to what happens with other products, the U.S. is the world’s largest importer of malleable iron pipe fittings, with annual imports of about $348M, which is 16.2 percent of the world’s total.

1.3) Which countries import the most malleable iron pipe fittings from China?

The United States is China’s largest importer of malleable iron pipe fittings since 2001. 25 percent in 2019.

2. What Types of Malleable Iron Pipe Fittings to Buy From China 

2.1Types & Surfaces of Malleable Iron Pipe Fittings

2.1.1)Types of Malleable Iron Pipe Fittings From China

✅Heavy duty banded fittings

First of all, from the appearance, there is a difference in the reinforcing rib. Heavy duty banded pipe fittings, the weight is much heavier, the exterior such as the first 90 degree gi elbow shown. For the mark on the fittings, the heavy banded type has FM, UL marks which means this type is FM approved and UL listed. The left two types don’t have these marks.

✅Medium duty banded fittings

Fittings that are medium duty banded have the same exterior appearance as heavy duty banded, however, they are lighter in weight. All mechanical behaviour complies with the Chinese Production Standard (GB). The exterior such as the second 90 degree gi elbow shown.

✅Light duty beaded fittings

Light duty beaded fittings are the lightest and cheapest of the three types. Even the weight is light, but all mechanical behaviour conforms to the Chinese Production Standard (GB). Different types to meet the needs of different markets. The exterior such as the third 90 degree gi elbow shown.

In addition to the general models listed above, there are certain markets that require additional fittings, as shown below. Relatively speaking, the quantity is not large.

2.1.2) Surfaces of Malleable Iron Pipe Fittings From China

Some customers also called it gi fittings, galvan fittings, gmi fittings, gal fittings, hot dip galvanized fittings and electro galvanized fittings.

Hot-dip galvanizing and electro galvanizing are different types of surface treatment. The thickness of the zinc layer on hot-dip galvanized pipe fittings is higher than that of electro-galvanized pipe fittings. The cost of electro-galvanized pipe fittings is slightly lower than the cost of hot-dip galvanized pipe fittings. As for the exterior surface, the electro-galvanized pipe fittings of Jianzhi Group can have the same good exterior surface as hot-dip galvanized pipe fittings. This production technology has also been granted a patent in China.

As shown in the figure below, the left is the electro-galvanized elbow, and the right is the hot-dip galvanized elbow.

Jianzhi electro-galvanized elbow and hot-dip galvanized elbow

Black pipe fittings, also called bmi fittings, mal fittings. Black pipe fittings are different from galvanized pipe fittings in that they have no other treatment for surface, and are mainly used in petroleum, fire protection, chilled water, and other fields. While at the same time, the price will be lower than the price of galvanized pipe fittings.

Jianzhi Black Pipe Fittings

2.2) What Types of Threaded to Choose for Malleable Iron Pipe Fittings

Common pipe fittings threads are the following: NPT, PT, G, etc.

2.2.1) NPT Threaded

The NPT thread <National (American) Pipe Thread> is an American standard 60-degree pipe thread that is divided into general sealed cylindrical pipe threads and general sealed conical pipe threads.

1. The theoretical position of the datum plane of the conical external thread of the American general sealing thread is located in a plane perpendicular to the thread axis and at a datum distance (L1) from the small end (reference plane);

2. The basic size:

Thread pitch diameter D2=d2=D-0.8*P

Thread minor diameter D1=d1=D-1.6*P

3. Connect method:

There is a column/cone fit between the cylindrical internal thread and the conical external thread; a cone/cone fit between the conical internal thread and the conical external thread.

4. Tolerance

The maximum deviation of the axial position of the reference plane of the American-made general sealing tapered thread is -P~+P;

5. Thread length

The minimum effective thread length of the American general sealing tapered external thread is not less than the actual diameter of its reference distance plus the assembly allowance.

The minimum effective thread length of American-made general sealing threads is at least the deviation from the reference plane’s position plus the basic size of the reference distance plus the assembly allowance;

6. Marking

Marking of American general sealing pipe threads as follows: thread feature code, thread size code, and rotation code;

American general sealing tapered pipe thread code: NPT

American general sealing cylindrical internal thread code: NPSC

As an example, the size code is 4 and the left-handed American general tapered pipe thread is:

The Chinese Standard is NPT 4-LH

The US standard is 4-8NPT-LH

2.2.2) BSPT Threaded

The PT (BSPT) threaded <British Standard Pipe Thread> is the abbreviation of Pipe Thread. A pipe thread with a 55-degree sealing angle. It is a Wyeth thread. Mostly used in Europe and the Commonwealth of Nations. Usually used for water and gas pipes. Taper 1:16, For the national standard, please refer to GB/T7306-2000. Also known as ZG.

PT also stands for the Japanese and Korean inch sealing pipe thread. JIS B 0203 and KS B 0222 are the Japanese and Korean standard numbers. GB/T 7306.2 is the corresponding Chinese standard.

2.2.3) G Threaded

G is a 55 degree unsealed pipe thread, which belongs to the Whitworth thread family. “G” stands for the cylindrical thread. For the national standard, please refer to GB/T7307-2001.

The inventor of Wyeth thread, Joseph Whitworth, established his own machine tool factories while the wave of the British industrial revolution.

Various thread factories, due to the lack of a unified thread standard, manufacture threads based on their own experience, resulting in a range of sizes. The result is that it is difficult to interchange thread parts.

After changing a screw, the screw hole at the same location of the same component may not be locked.

Whitworth is aware of this serious problem as the scale of production continues to expand.

He then collected samples from different factories, measured size and shape, and collected other data. On this basis, he proposed a unified standard for thread processing, which was the origin of the Wyeth thread BSW (British Standard Whitworth) and the first thread standard in the world.

The thread profile angle in this standard is 55 degrees (BSF = British Standard Whitworth Thread Fine).

Despite the fact that Wyeth threads are no longer common in nuts and screws, they have been replaced by the unified series and the metric series.

However, BSPP (British standard pipe parallel) and BSPT (British standard pipe tape) of 1:16 are developed on this basis and are now international standards (ISO), which are in use today.

A G is an abbreviation for gas (originating from the German Gewinde, which means “thread”), as it was initially used in a gas pipeline system.

Thread G consists of internal and external threads, which are used for non-sealing connections. The executive standard is BS EN ISO 228-1, while the old standard is BS 2779, which is no longer valid.

3. How to find reliable malleable iron pipe fittings manufacturers in China?

If you are planning to import malleable iron pipe fittings from China, the first thing you will do is probably to search online for Chinese malleable iron pipe fittings factories. But is the supplier you found this way really a factory, instead of a trading company?

Before you put down any deposit, let’s take several minutes to learn a few essential facts about importing from China.

Don’t want a trading company?

Jianzhi Group helps you find the suitable malleable iron pipe fittings manufacturers in China.

3.1) Where are the most malleable iron pipe fittings produced in China?

The quality of malleable iron pipe fittings depends largely on the raw material used in them and the casting process.

Raw iron and scrap steel are the primary raw materials used in the production of malleable iron pipe fittings. Jianzhi Group’s scrap steel meets the requirements for environmental protection. The standard is Q235B. The quality of its raw iron meets the international high-purity raw iron standard, purchased from Benxi Shentie Iron Group, and this company is the “National High-Quality Foundry Raw Iron Base” established by the China Foundry Association.

Materials are sourced locally, similar to what happens with other products, some places in China produce much better malleable iron pipe fittings than others!

I’ll give you the names directly. These malleable iron pipe fittings industrial clusters are Tangshan and Shijiazhuang in Hebei, Pingyin and Linyi in Shandong, Taigu in Shanxi, Chongqing, and Ganzhou in Jiangxi.

Different manufacturers have different characteristics and can meet the needs of different customers. As an example, Hebei Jianzhi can offer faster delivery times and has a cost-effective advantage.

3.2) How can you tell if a malleable iron pipe fitting supplier is a factory or a trading company?

Furthermore, there are also trading companies in addition to factories. It is important to distinguish between foreign trade companies and factories.

I’m going to present two simple tips to let you know how to determine whether it’s a factory or a trading company.

Check supplier’s location:

Typically, Chinese factories are located in suburban or industrial areas, an hour’s drive from the city centre. It is likely that a supplier with an address in an urban area will be a trading company rather than a manufacturer. However, in another instance, because the suburban area is too far from the city centre, some factories rent a space in the city centre to hire more professional traders. These offices often have the same name as the head office. An example of this is Jianzhi Casting Group, Jianzhi International Trade (Tianjin), Jianzhi International Trade (Tangshan), etc. If the name of a factory is very different from the name of his office, please pay attention.

If you cannot travel to China yourself, how can you locate a supplier? It might be helpful to use Google Street View.

But, and this is an extremely crucial fact, Google is not available in China for some reason. This includes Google Search, Google Maps, etc.

But it’s not hopeless. You can try using Baidu, the Chinese version of Google. As with Google, you just need to type in the corresponding Chinese address. You can use Baidu Street View to see what the address looks like.

Or, you can request the supplier send you their location on Google Earth.

See how many product categories they’re carrying:

All genuine factories usually focus on producing only one or two types of products.

It is because a manufacturer requires specific equipment, raw materials, and specialized workers to produce a product.

If a factory produces many different types of products, they would need to invest in completely different production equipment, so it would be almost impossible for that to happen. Unless it is a group company, the owner of the company will invest in many related factories. At the same time, the unit price of products of large companies will be higher than that of ordinary factories. But this situation is not particularly common. Suppose there is a Chinese supplier that deals with malleable iron pipe fittings, but also sells PVC pipe fittings, stainless steel fittings, pipes, brass fittings, etc. In that case, they are likely to be middlemen whose business model is to rent a showroom to display and sell the factory’s goods.

3.3) Do you prefer to do business with a manufacturer or a trader?


It is more suitable for you if you are a large wholesaler or importer with a large enough warehouse and sufficient sales staff, each time the purchase volume is large, and you intend to obtain a more competitive price, you should consider visiting a factory.

3.3.2)Trading Company

It is necessary to cooperate with many factories if you require the production of more categories. In such a case, you should contract a trading company that will assist you in doing centralized purchasing and saving time. It is also possible to use a trading company if your payment methods are more diversified, such as long-term letters of credit, OA, etc, since factory production requires continuous capital flow, and the payment method depends on a single cash flow.

3.4) Where can you find a suitable factory for malleable iron pipe fittings in China?

3.4.1) Internet

Because some Chinese factories are not good at online marketing and writing descriptions in English before, usually, you can find them difficultly. But now, because of COVID-19, many factories have realized that they need a website, do some Google ads, open a store on Alibaba, or create Facebook, LinkedIn, and YouTube accounts, etc. Some factories also have professional operation employees. But how can we find a real factory on Or how can we find a real factory on Internet?

There are several tips that can help you.

  • Website

A professional factory usually has an official website. In most cases, the official website focuses on the company’s production capabilities and main products. Some companies may also have targeted sub-sites for different products to meet different customers’ requirements. These websites belong to the same group company. For example, Jianzhi has several websites:

The old factory website:

Jianzhi malleable iron pipe fittings website:

Jianzhi grooved fittings website:

In addition, you should pay attention to the dynamic updates of the news on the website. Updating the dynamics regularly is a factor to ensure whether the factory operates smoothly.

  • is a B2B platform for Oversea Customers and is a member of the Alibaba Group.

First: Look at the supplier tag to see if it displays the Floor Space, Total Staff, and Main Products. As a rule, the floor space and staff are relatively larger, and the main products are one or two types.

When compared with the above image, this company does not show any floor space or staff. Its main products include many different types of products. Usually, it is a trading company or a small factory that produces one or two types of products.


Enter the supplier’s store on Alibaba and look for the TUV or SGS reports. Look at the bottom of the company profile, you will find it. Download the reports. You may find there are one or two reports, that is no problem, download them both. Or you can click the “eye” to preview the reports


When a supplier has one report, the relationship is “self-owned”. This is a factory, and there is real space and employees. The report below is an example:

When the supplier has two reports, please read the second <Report 2>. The relationship is “shareholder/partner” and the business type is “manufacturer”, as well as the actual site and employees. The report below is an example:

If you find the supplier has 2 reports, but the relationship is “Cooperation Partner”, and the business type is “Trading Company”, that means, this supplier is a trading company.

If you find the business type is “Manufacturer, Trading Company”, there are two reports.

The company is not a factory, but there are related factories and certification rules related to the integration of industry and trade: (any one of the following can be satisfied)

① a and b are shareholders of each other, accounting for >=50% of the shares

② a and b have a common shareholder with a share ratio >= 50%

③ a and b have multiple common shareholders, the cumulative share is >= 50%, and all shareholders sign the concerted action confirmation letter, sign or seal

④ a and b are the same legal person

  • SNS (social media) Accounts:

In the same vein, factories are also increasingly valuing social media. They will also update their social media accounts synchronously with the news from the website. These posts may include specific dynamic information or videos.

For example, Jianzhi SNS Accounts:

Facebook Company Page:

LinkedIn Company Page:

YouTube Company Page:

This is a video from Jianzhi Manufacturer. It contains some industry knowledge. We hope that the video will be helpful for those interested in pipe fittings.

3.4.2) Exhibition

Unlike the world-famous Canton Fair, China Internation Hardware Show is a trade show focused on hardware and tools. Here you can find a wide range of pipe fittings. The show is held every in Shanghai, and the 2022 CIHS be held from Sep. 21 to 23. Of course, some factories also take part in different professional exhibitions all over the world, for example, the BIG 5, Aqua therm Moscow, Japan Build, and so on.

3.4.3) Malleable Iron Pipe Fittings Wholesale Market

Trade shows are usually only available at a certain time of the year, but if you want to come to China when there are no trade shows, you can go to the wholesale hardware market, which will have a wide selection of malleable iron pipe fittings.

Compare with the factory, the agents on wholesale markets have lower MOQ. But the price is a little higher than the factory, because of the quantity.

3.4.4) Purchasing Agent

Purchasing agents are more familiar with the Chinese market and are better able to communicate with Chinese suppliers. They could assist you in finding the right factory, reducing costs, and handling the whole process of importing from China. Shorter lead times and reduced communication costs.

If you are importing goods from China for the first time, it is also an excellent idea to seek assistance from a reputable sourcing company.

It is important to understand the difference between a purchasing agent and a trading company: a trading company is profitable, and you do not know what their profit margin is, while a purchasing agent is not profitable. His agency fees are transparent, and you may negotiate them with him.

4. What are the compliance requirements for importing malleable iron pipe fittings from China?

Each country has its own regulations and standards governing the importation of goods. If you wish to import malleable iron pipe fittings from China to East Africa, the United States, or Europe, etc. You must find out what the country’s certification and compliance requirements are for your product.

4.1) Importing malleable iron pipe fittings from China to East Africa – PVOC

The Kenya Bureau of Standards (KEBS) began implementing the Pre-Export Standards Conformity Verification Scheme (PVoC) on September 29, 2005. Products in the PVoC catalogue must obtain a Certificate of Conformity (CoC) before being shipped and must be provided to Kenya Customs; otherwise, they cannot enter Keny. In special circumstances where there is no CoC, the KEBS may inspect the batch of goods and impose a fine.

4.2) Importing malleable iron pipe fittings from China to the United StatesCustoms Duty

Malleable iron pipe fittings are subject to anti-dumping duties in the United States and Europe, so if you are from these regions, you will need to know how much the tax is before you place an order.

4.3) Importing malleable iron pipe fittings from China to Saudi ArabiaSABER

Saber certification process and required information:

According to Saudi Arabia’s “Saber certification”, all products entering Saudi Arabia are classified into high, medium, and low risk categories. Different types of certification are required based on the risk category. So how should the product be classified? Consider the following factors:

1) Please provide: product name + (Saudi) customs code

2) How to inquire: Please visit the Saudi Saber website ( for more information

If you query the Saudi website, you will see a query result, but what does it mean and how should you proceed? Below are the two most common authentication methods:

1) Query result: Supplier Conformity Declaration

Method for certification: If this result occurs, you may directly register and apply for the SCOC certificate, which is the “Shipment Conformity Certificate for imported products”. With this, you will be able to sell your products in Saudi Arabia.

2) Query result: COC CertificateOR QM Certificate

The following two certificates are required if this is the result:

PC certificate: Certificate of conformity for regulated products.

SC certificate: Shipment Conformity certificate for imported products

The certification process includes: opening an importer Saber account – PC registration – test report – PC certification – delivery – SC certification

Reminder: Unless it is extremely urgent, please kindly prepare the PC certificate before shipping the goods in order to avoid being unable to clear customs of the goods reaching the destination port.

Please contact us if you do not have relevant experience. Jianzhi is able to assist you.

4.4) Importing malleable iron pipe fittings from China to EgyptCargoX

The Egyptian Ministry of Finance has announced that it will implement the Advance Cargo Information Declaration (ACID) system at all ports in the country using the NAFEZA system. It was piloted on April 1, 2021, and will be enforced on July 1, 2021 (all arrival dates).

The Egyptian government has authorized CargoX, as a blockchain provider, to act as a gateway for the transfer of original documents, including ACI declaration letters, bills of lading, and other documents.

The Ministry of Finance of Egypt designated Misr Technology Services and Egyptian Customs to jointly respond to the concerns of traders and produced a variety of help documents for traders to learn more about the relevant requirements and usage methods for reference.

Cargo Advance Registration System (ACI) Frequently Asked Questions and Guide (Chinese Version)

Cargo Advance Registration System (ACI) Frequently Asked Questions and Guide (Arabic Version)

Cargo Advance Registration System (ACI) Frequently Asked Questions and Guide (English)

4.5) Importing malleable iron pipe fittings from China to BrazilABNT

For Brazilian customers, be sure to ask the manufacturer whether the product meets the requirements of the ABNT certification. The pipe fittings should be printed with ABNT as well.

4.6) Importing malleable iron pipe fittings from China to the U.K.BSI

For UK customers, be sure to ask the manufacturer whether the product meets the requirements of the BSI certification. The pipe fittings should be printed with BSI as well.

5. How do you control the quality of malleable iron pipe fittings when you import from China?

If you are going to outsource the manufacturing of your products to China and you are going to manage it yourself, you need to learn a lot.

You need to learn about Chinese culture, how to negotiate, how products are made. But one of the things you have to know is how to control the quality.

In this chapter, we will discuss some quality control tips for acquiring malleable iron pipe fittings from Chinese manufacturers.

5.1) What product defects can occur with malleable iron pipe fittings when importing from China?

Possible product problems when you import malleable iron pipe fittings are:

  • Incorrect pipe fittings size
  • Deep defects on the surface
  • Incorrect weight of pipe fittings
  • Incorrect threaded of pipe fittings
  • Poor assembly of pipe fittings
  • Incorrect coating
  • Improper packaging

5.2) What can you do to control product quality in China?

Quality control is a long story, but as a buyer, there are a few know-how you can quickly get started with:

  • Order according to sample

Never place an order without seeing a sample. This can avoid a lot of unnecessary hassle.

  • Make all requirements clear in the contract

If you have a request, don’t just communicate it verbally, be sure to confirm it in writing and put it in the contract.

  • Check the goods before paying the balance

The key of this tip is to inform the supplier that you will have your agent in China conduct a pre-shipment inspection before you make the final payment. This is how you will get the supplier to take your order more seriously.

Related Article: <Malleable Iron Pipe Fittings – Inspection Guide>

6. How to ship malleable iron pipe fittings from China?

When your product is ready to be shipped, you need to know what is the best practice.

What size of container you should choose?

There are three types of containers available, 20ft, 40ft, and 40ft HQ.

You need to decide which container to choose based on the quantity of the order.

What shipping documents are required to ship your product?

Customs requirements vary from each destination country, but usually, you will need the following shipping documents to import from China:

  • Commercial Invoice
  • Packing List
  • Certificate of Origin
  • Bill of Lading
  • Mill Test Certificate

If you purchase from several different suppliers and ship in one container, how do you arrange to ship?

You could rent a warehouse and let your suppliers send the goods there, and then arrange to load the containers. But usually, your buying agent will take care of the consolidation without additional warehouse costs.

I think all aspects of this topic have been covered, and now you should probably know about how to import malleable iron pipe fittings from China.

You can’t be too careful when importing from overseas. If you have any questions, feel free to contact us. We’ll reply asap.

If you want to get a quote for malleable iron pipe fittings or need assistance from Jianzhi Group to import from China, welcome to talk to us about your project.