GB/T8162 Seamless Steel Pipe
This standard applies to seamless steel tubes for general structural and mechanical structures. The main production of steel pipe grade includes Gr 10, Gr 20, Gr 35, Gr 45, Q345, 15CrMo, and 12Cr1MoV.
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Product Description
Spot Warehouse
Product Packaging
Product Description 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 NameGB/T8162 Seamless Steel Pipe
StandardEN/DIN/JIS/ASTM/BS/ASME/AISI etc.
Outer DiameterSeamless: 1/4"-36"Welding: 21.3mm-3620mm
Round Tube: 1/2"-10"Square Tube/Rectangular Tube: 15x15mm-400x600mm
Wall ThicknessSeamless: 1.25mm-50mmWelding: 1.65mm-65mm
Length

3-12 meters, Support customization

Surface ProcessBright, Polished, Black
Other ServicesMachining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.


Chemical Composition
Mechanical Properties

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

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

APPLICATIONS &INDUSTRIES

Seamless steel tubes for the manufacture of pipes, vessels, equipment, fittings and mechanical structures
Stock Warehouse-GB/T8162 Seamless Steel Pipe

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Product Packaging-GB/T8162 Seamless Steel Pipe

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