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Seamless steel tube for high temperature

Seamless steel tube for high temperature2

release time:2018-03-16 10:18:01
Seamless steel tube for high temperature2

 

 

 

Standard of implementation ASTM A106/ASME SA106

Application: used in conveying water, oil, gas and other fluids.

Major steel grade A106A A106B A106C and so onAfter consultation, can  also provide other special grade of steel pipe.)

Chemical composition and mechanical properties

Standard

Steel grade

Chemical   constituents

C

Mn

Si

Cu

Ni

Cr

Mo

V

P

S

ASTMA106/

ASMESA106

A

≤ 0.25

0.27 0.93

≥ 0.10

≤ 0.40

≤ 0.40

≤ 0.40

≤ 0.15

≤ 0.08

≤ 0.035

≤ 0.035

B

≤ 0.30

0.29 1.06

≥ 0.10

≤ 0.40

≤ 0.40

≤ 0.40

≤ 0.15

≤ 0.08

≤ 0.035

≤ 0.035

C

≤ 0.35

0.29 1.06

≥ 0.10

≤ 0.40

≤ 0.40

≤ 0.40

≤ 0.15

≤ 0.08

≤ 0.035

≤ 0.035

Mechanical   properties

Tensile strength   (MPa)

Yield strength   (MPa)

A

≥ 330

≥ 205

B

≥ 415

≥ 240

C

≥ 485

≥ 275

Note: the maximum carbon content in the specified amount of carbon content  per 0.01%, then the maximum manganese content in the specified amount of each  increase of 0.06% manganese content, but the maximum not more than 1.35%;

Cu, Cr, Ni, Mo, V  these five elements and not greater than 1%;

Dimensional tolerance

Type of steel   tube

Outside diameterD

Wall thicknessS

Cold drawn pipe

Outside diameter

Allowable   tolerance

Wall thickness

Allowable   tolerance

3050

+0.3%

≤25

+10%

50325

+0.8%

Hot rolling tube

6168

+1.0%

≤25

-10%+12.5%