Carbon Steel Pipe

GB/T8162 Seamless Steel Pipe

GB/T8162 Seamless Steel Pipe DescriptionSeamless steel pipe for general structure (GB/T8162-2008) is a seamless steel pipe for general structure and mechanical structure.Product ParametersProduct NameGB/T8162 Seamless Steel PipeStandardEN/DIN/JIS/ASTM/BS/ASME/AISI etc.Outer DiameterSeamless:1/

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GB/T8162 Seamless Steel Pipe Description

Seamless steel pipe for general structure (GB/T8162-2008) is a seamless steel pipe for general structure and mechanical structure.

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

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