GB/T 5310 Seamless Steel Pipes For High Pressure Boiler

Tianjin Wanlei Steel Pipe Co., Ltd. is one of the leading manufacturers and suppliers of gb/t 5310 seamless steel pipes for high pressure boiler in China, featured by quality products and low price. If you're going to wholesale durable gb/t 5310 seamless steel pipes for high pressure boiler made in China, welcome to get pricelist and free sample from our factory.

 

Introduction

GB/T 5310 standard is equivalent to ASTM A210, ASTM A213, and ASTM A335 standard. GB/T 5310 standard specifics the requirements of seamless steel pipes used for high pressure boiler. GB/T5310 seamless steel pipes have strict requirements for steel grades of steel pipes. The common steel grades include 20G, 20MnG, 25MnG, etc. They all belong to high quality carbon structural steel. Alloy structural steel mainly include 15MoG, 20MoG, 12CrMoG, 15CrMoG, etc. These alloy materials have excellent strong strength and excellent mechanical properties. That's why GB/T 5310 seamless steel pipes are usually used in high pressure environments.

 

Features of GB/T5310 seamless steel pipes

1. High strength: GB/T 5310 seamless steel pipes have high strength, which can withstand the working stress under high temperature and high pressure environment.

2. Excellent oxidation resistance: GB/T 5310 seamless steel pipes have excellent oxidation resistance, reducing the risk of oxidation and corrosion and extending the service life of boilers.

3. Good structural stability: GB/T 5310 seamless steel pipes have a stable structure, which makes it maintain stable operation under high temperature and high pressure environments, ensuring the safety and stability of boiler or other high pressure equipment.

 

Specification

Product name	High Pressure Seamless Boiler Tubes
Place of origin	Tianjin China
Standard	GB/T 5310
Relevant standard	ASTM A335, ASTM A213
Manufacturing technique	Hot rolled, Hot expanded process
Material grades	Carbon steel: 20G, 20MnG, 25MnG, etc.
	Alloy steel: 15CrMoG, 10Cr9Mo1VNbN, etc.
Outer diameter	10.3mm-914.4mm (customizable)
Wall thickness	1mm-30mm (customizable)
Length	3m-12m or customized length
Surface treatment	Black painting, Varnish painting or as per clients' requirements
Delivery condition	Heat treatment

 

Comparison table of China and foreign materials

GB Standard	Grade	ASTM Standard	Grade
GB/T 5310	20G	A106	Gr.B
	25MnG		Gr.C
	15CrMoG	A213/A335	T12/P12
	10Cr9Mo1VNbN		T91/P91
	10Cr9MoW2VNbBN		T92/P92

 

Mechanical properties

Steel grade	Tensile strength(Mpa)	Yield strength,min(Mpa)	Elongation,min(%)	Impact(J)	Hardness(HBW)
20G	410-550	245	24	40	120-160
25MnG	485-640	275	20	40	130-180
15CrMoG	440-640	295	21	40	125-195
10Cr9Mo1VNbN	585,min	415	20	40	190-250

 

Manufacturing technique

GB/T 5310 seamless steel can be made from hot rolled, hot expanded, and cold drawn process. Cold drawn process is suitable for manufacturing of small diameter seamless steel pipes with high dimension precision. For large diameter seamless steel pipes, such as the outer diameter of steel pipes is 508mm, 660.4mm, 762mm,914.4m, etc., hot expanded process is a proper manufacturing method.

 

Product show

 

Inspection

All steel pipes will be carefully tested before delivery. The test main include non-destructive test, Bending test, and parameter measure of steel pipes(outer diameter, wall thickness, and length), etc.

 

Our advantages

1. Fast delivery: After receiving your detailed requirements, we can rapidly prepare the goods from stock or pick them up from other factories. The goods will be shipped in a short time, and the delivery is very fast.

2. Large inventory: We have sufficient inventory to meet clients' needs. Here you can find the product you want.

3. Service in place: We can provide the best service to clients. Here you can enjoy warm and quick service.

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