legierter stahl p91 rohr

Steel Code

SA335 P11

SA335 P12

SA335 P22

SA335 P5

SA335 P91

SA335 P92

Chemical Component(%)

0.05∼0.15

0.05∼0.15

0.05∼0.15

≤0.15

0.08∼0.12

0.07∼0.13

0.50∼1

≤0.50

≤0.50

≤0.50

0.20∼0.5

≤0.50

0.30∼0.6

0.30∼0.61

0.30∼0.6

0.30∼0.6

0.30∼0.6

≤0.03

≤0.02

≤0.02

≤0.030

≤0.030

≤0.010

≤0.010

1∼1.50

0.8∼1.25

1.9∼2.60

4.00/6

8∼9.50

8.5∼9.50

0.5∼1.00

0.44∼0.65

0.87∼1.13

0.45/0.65

0.85∼1.05

0.3∼0.60

Cu

B0.001 0.006

Ni

≤0.4

≤0.4

V

0.18∼0.25

0.15∼0.25

Al

≤0.015

≤0.015

W

1.50∼2

Nb

0.06∼0.1

0.04∼0.09

N

0.03∼0.07

0.03∼0.07

Steel Code

Tensile Strength (MPa)

Yield Strength (MPa)

Elongation Percentage(%)

SA335 P11

≥22

SA335 P12

≥220

SA335 P22

SA335 P5

SA335 P91

585∼760

SA335 P92

≥620

Type of Steel Pipes

OD(D)

WT(S)

Cold Drawn Steel Pipe

OD(mm)

Tolerance (mm)

Wall Thickness(mm)

Tolerance (mm)

>30∼50

±0.3%

>3∼20

±10%

>114∼159

±0.8%

≤30

±10%

>114∼159

±1.0%

Hot Rolled Steel Pipe

>219∼457

±1.0%

≤20

+10%,-12.5%

>20∼40

+10%,-10%