Grade

钢号

Chemical Composition 化学成份 %

 maxima unless stated

Mechanical Properties 机械性能

  ( minimum 最小 )

C Mn P S Si Cr

Tensile Strength

抗拉强度

N / mm2

( ksi )

Yield Stress

屈服强度

N / mm2 ( ksi )

Elongation

伸长率 %

ASTM ( include ASTM A106 Grade A, B & C, refer ASTM Standards - Pipes )

A192-91 0.06 ~ 0.18 0.27 ~ 0.63 0.035 0.035 0.25 - 325 (47) 180 ( 26 ) 35
A210 Grade A1 0.27 0.93 0.035 0.035 0.10 min - 415 (60) 255 ( 37 ) 30
A210 Grade C 0.35 0.29 ~ 1.06 0.035 0.035 0.10 min - 485 (70) 275 ( 40 ) 30

DIN 17175

Thickness 厚度 t mm  
t £ 16 16 < t £ 40 40 < t £ 60
St. 35.8 0.17 0.40 ~ 0.80 0.04 0.04 0.10 ~ 0.35 - 360 ~ 380 (52-70) 235 (34) 225 (33) 215 (31) 25
St. 45.8 0.21 0.40 ~ 1.20 0.04 0.04 0.15 ~ 0.35 - 410 ~ 530 (59-77) 255 (37) 245 (36) 235 (34) 21
17 Mn 4 0.14 ~ 0.20 0.90 ~ 1.20 0.04 0.04 0.20 ~ 0.40 0.30 460 ~ 580 (67-84) 270 (39) 270 (39) 260 (38) 23

JIS G3456 ( also applicable to cold finished seamless & electric resistance welded pipes )

Test Piece in Direction 测试片  
No. 11/12 No. 5 No. 4
long. transv. long. transv.
STPT 370 ( 38 ) 0.25 0.30 ~ 0.90 0.035 0.035 0.10 ~ 0.35 - 370 215 30 25 28 23
STPT 410 ( 42 ) 0.30 0.30 ~ 1.00 0.035 0.035 0.10 ~ 0.35 - 410 245 25 20 24 19
STPT 480 ( 49 ) 0.33 0.30 ~ 1.00 0.035 0.035 0.10 ~ 0.35 - 480 275 25 20 22 17
JIS G3461 ( also applicable to cold finished seamless & electric resistance welded pipes ) Outer Diameter 外径 d mm
d ³ 20 10 £ d < 20 d < 10
Test Piece 测试片

No. 11/12

No. 11

No. 11

STB 340 ( 35 ) 0.18 0.30 ~ 0.60 0.035 0.035 0.35 - 340 175 35 30 27
STB 410 ( 42 ) 0.32 0.30 ~ 0.80 0.035 0.035 0.35 - 410 255 25 20 17