GB/T8162 Seamless Steel Pipe

GB/T8162 is a standard seamless pipe, suitable for seamless pipes in general structures and mechanical structures. The parts after quenching and tempering of GB/T8162 seamless steel pipe have good comprehensive mechanical properties and are widely used in various important structural parts, especially those connecting rods, bolts, gears and shafts that work under alternating loads. However, the surface hardness is low and not wear-resistant. Quenching and tempering, as well as surface quenching can be used to improve the surface hardness of the parts.

Product Parameters

Product Name	GB/T8162 Seamless Steel Pipe
Standard	EN/DIN/JIS/ASTM/BS/ASME/AISI etc.
Outer Diameter	Seamless: 1/4"-36"	Welding: 21.3mm-3620mm
	Round Tube: 1/2"-10"	Square Tube/Rectangular Tube: 15x15mm-400x600mm
Wall Thickness	Seamless: 1.25mm-50mm	Welding: 1.65mm-65mm
Length	3-12 meters, Support customization
Surface Process	Bright, Polished, Black
Other Services	Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.

 

Chemical Composition

Grade	C	Si	Mn	P, S	Cu	Ni	Mo	Cr
10	0.07-0.14	0.17-0.37	0.35-0.65	≤ 0.035	≤ 0.25	≤ 0.25	/	≤ 0.15
20	0.17-0.24	0.17-0.37	0.35-0.65	≤ 0.035	≤ 0.25	≤ 0.25	/	≤ 0.25
35	0.32-0.40	0.17-0.37	0.50-0.80	≤ 0.035	≤ 0.25	≤ 0.25	/	≤ 0.25
45	0.42-0.50	0.17-0.37	0.50-0.80	≤ 0.035	≤ 0.25	≤ 0.25	/	≤ 0.25
16Mn	0.12-0.20	0.20-0.55	1.20-1.60	≤ 0.035	≤ 0.25	≤ 0.25	/	≤ 0.25
12CrMo	0.08-0.15	0.17-0.37	0.40-0.70	≤ 0.035	≤ 0.25	≤ 0.30	0.40-0.55	0.40-0.70
15CrMo	0.12-0.18	0.17-0.37	0.40-0.70	≤ 0.035	≤ 0.25	≤ 0.30	0.40-0.55	0.80-1.10
12Cr1MoV	0.08-0.15	0.17-0.37	0.40-0.70	≤ 0.035	≤ 0.25	≤ 0.30	0.25-0.35	0.90-1.20

 

Mechanical Properties

Grade	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)
10	≥ 335	≥ 205	≥ 24
20	≥ 390	≥ 245	≥ 20
35	≥ 510	≥ 305	≥ 17
45	≥ 590	≥ 335	≥ 14
16Mn	≥ 490	≥ 325	≥ 21
12CrMo	≥ 410	≥ 265	≥ 24
15CrMo	≥ 440	≥ 295	≥ 22
12Cr1MoV	≥ 490	≥ 245	≥ 22

 

Scope of Application

Seamless steel tubes for the manufacture of pipes, vessels, equipment, fittings and mechanical structures

Q:What about your price?

A:Our price is very competitive because we are a factory. Pls feel free to contact us if you are interested in our products.

Q:What certifications do your products have?

A:We have ISO 9001, SGS, EWC and other certifications.

Q:What kind of payment terms would you accept?

A:We always do T/T.30% T/T as deposit,70% T/T as balance.

Q:What is your MOQ?

A:We will provide Original Mill Usually 25 tonnes, but it can be adjusted according to your needs and the actual situation of the inventory.

Q:What is the delivery time?

A:10-15 days

Our factory products comply with CE/EN10204/ASTM/classification society certificates/CASO/BIS and other certificates, and all orders are subject to TPI (SGS/TUV/BV, etc.) inspection