JIANGSU IRUNT STEEL GROUP CO., LTD.
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Precision Steel Pipe

  • GB/T3639 Precision seamless steel pipe

GB/T3639 Precision seamless steel pipe

Description:

Standard:GB/T 3639-2009

Material: 10#, 20#, 35#,45#, Q345

Outer Diameter: 6-219mm

Wall Thickness: 1-20mm

Length: 10-12000mm or as customer’s require


parameters


Chemical Composition

Grade

C

Si

Mn

P≤

S≤

Ni≤

Cr≤

Cu

10#

0.07-0.13

0.17-0.37

0.35-0.65

0.035

0.035

0.25

0.15

0.25

20#

0.17-0.24

0.17-0.37

0.35-0.65

0.035

0.035

0.30

0.25

0.25

35#

0.32-0.40

0.17-0.37

0.50-0.80

0.035

0.035

0.30

0.25

0.25

45#

0.42-0.50

0.17-0.37

0.50-0.80

0.035

0.035

0.30

0.25

0.25

Q345

0.20

0.50

1.70

0.035

0.035

0.50

0.30

0.30


introduction

Name: Precision seamless steel pipe

Material: Carbon steel

Tolerance: ±0.02-0.10mm or as per customers’ request

Surface: Bright or oiled or black

Packing: 
Bundle packing

Beveled end or pained

Marking as customers’ request

Plastic caps at ends

Application:
Automobile, motorcycle, electric car, petro chemical, electric power, vessel, aerospace, bearing, pneumatic components, medium and low pressure boiler, Bearing, hydraulic, mechanical processing