GB/T 6479-2013 Seamless Steel Tube For High-Pressure Service

Tianjin Wanlei Steel Pipe Co., Ltd. is one of the leading manufacturers and suppliers of gb/t 6479-2013 seamless steel tube for high-pressure service in China, featured by quality products and low price. If you're going to wholesale durable gb/t 6479-2013 seamless steel tube for high-pressure service made in China, welcome to get pricelist and free sample from our factory.

 

Introduction of GB/T 6479 seamless steel tube

GB/T 6479 seamless steel tube has excellent mechanical properties, corrosion resistance and high pressure resistance. It is usually made of high quality carbon steel and alloy steel, such as 10#, 20#, Q345B, 12CrMo, 15CrMo, etc. GB/T 6479 seamless steel tube has uniform thickness and smooth surface and can maintain its high strength under high-pressure and high-temperature. It is also highly resistant to abrasion and impact.

 

Specification

Product name	GB/T 6479 Seamless Steel Tube
Place of origin	Tianjin China
Brand	WL
Standard	GB/T 6479
Material grade	10#, 20#, Q345B, 12CrMo, 15CrMo, etc.
Out diameter	10.3mm-914.4mm
Wall thickness	1mm-100mm
Length	3m-12m or customized length
Test	Ultrasonic test, hydraulic test, etc.
Technique	Hot rolled or cold drawn
Packing	In bundles or in loose

 

Chemical composition %

Grade	C	Si	Mn	Cr,max	Mo,max	V,max	Nb,max	Ni,max	P,max	S,max
10#	0.07-0.13	0.17-0.37	0.35-0.65	-	-	-	-	-	0.025	0.015
20#	0.17-0.23	0.17-0.37	0.35-0.65	-	-	-	-	-	0.025	0.015
Q345B(a)	0.12-0.20	0.20-0.50	1.20-1.70	0.30	0.10	0.15	0.07	0.50	0.025	0.015
12CrMo	0.08-0.15	0.17-0.37	0.40-0.70	0.40-0.70	0.40-0.55	-	-	-	0.025	0.015
15CrMo	0.12-0.18	0.17-0.37	0.40-0.70	0.80-1.10	0.40-0.55	-	-	-	0.025	0.015

 

Mechanical properties 

Grade	Tensile strength(Mpa)	Yield strength,min(Mpa)			Elongation,min(%)
		Wall thickness/mm			longitudinal	horizontal
		≤16	＞16-40	＞40
10#	335-490	205	195	185	24	22
20#	410-550	245	235	225	24	22
Q345B	490-670	345	335	325	21	19
12CrMo	410-560	205	195	185	21	19
15CrMo	440-640	295	285	275	21	19

 

Impact requirement

Grade	Impact(KV2)/J
	Temperature/℃	Longitudinal,min	Horizontal,min
10#	-	-	-
20#	0	40	27
Q345B	20	40	27
12CrMo	20	40	27
15CrMo	20	40	27

 

Product show

 

Applications

GB/T 6479 Seamless steel tube is widely used in high-pressure fluid transportation systems in some industries such as fertilizer, chemical, petroleum, natural gas, power, metallurgy, etc. In fertilizer production, they are not only an indispensable part of the production equipment for key chemical products such as ammonia and urea, but also undertake the task of transporting high-temperature and high-pressure gases and liquid media.

 

Our advantages

1. Convenient transportation: Our company is located in Tianjin, and is less than 10 kilometers away from the Tianjin Port. So convenient for loading and transportation.

2. Best price: We maintain good long-term cooperative relationships with world-famous manufacturers, so we can provide high quality and inexpensive products to clients.

3. Professional customized service: We can provide professional customized service to clients according to clients' requirements.

4. Service in place: 24 hours technical support and after-sale service to answer your questions.

5. Adequate inventory: Our inventory is sufficient and can be shipped in a short time.

 

About us

 

FAQ

Q: Can you provide some samples? Any charge?

A: We can provide free samples for clients, but the transportation costs not be included.

Q: Can I visit your factory?

A: Of course, warmly welcome to your visit. Please let us know your schedule and we will pick you up.

Q: Do you check the quality of all goods before delivery?

A: Yes, we inspect the quality of goods before delivery.

Q: How is your payment terms?

A: One is 30% advance payment by T/T after signing contract and the 70% balance due upon receipt of a copy of BL; the other is an irrevocable L/C for 100% at sight.

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