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Jisg3445 Stpg370 216.3X7.5X6000mm
Jisg3445 Stpg370 216.3X7.5X6000mm


Seamless Steel Pipe(tube) STPG370
热轧无缝钢管
HOT ROLLED SEAMLESS TUBE
标准 Standard: JIS3445/JIS3444
用途 Application:用于制作管道,容器,设备,管件及钢结构
For manufacturing of pipelines, vessels, mahine parts, pipe fittings, and steel structures.
尺寸公差 Dimension Tolerance
标准
Standard
外径公差
Outside Diameter
Tolerance
壁厚公差
Wall Thickness
Tolerance
JIS3445/JIS3444
D<50
+/-0.5mm
S<4mm
+/-12.5%
D≥50
+/-1%
4mm≤S≤20mm
+15%/-12.5%
S.20mm
+/-12.5%
机械性能 Mechanical Properties
标准
Standard
钢级
Grade
抗拉强度
(Mpa)
Tensile
Strength
屈服强度(Mpa)
Yield Strength
伸长率(%)
Elongation
≤16mm
16-30mm
JIS3445/JIS3444
10
≥335
205
195
24
20
≥390
245
235
20
35
≥510
305
295
17
45
≥590
335
325
14
Q355B
≥490
325
315
21
化学成分 Chemical Composition(%)
标准
Standard
钢级
Grade
C
Si
Mn
P
≤
S
≤
Cr
≤
Ni
≤
Cu
≤
V
≤
JIS3445/JIS3444
10
0.07-0.13
0.17-0.37
0.35-0.65
0.035
0.035
0.15
0.30
0.25
-
20
0.17-0.23
0.17-0.37
0.35-0.65
0.035
0.035
0.25
0.30
0.25
-
35
0.32-0.39
0.17-0.37
0.50-0.80
0.035
0.035
0.25
0.30
0.25
-
45
0.42-0.50
0.17-0.37
0.50-0.80
0.035
0.035
0.25
0.30
0.25
-
Q355B
≤ 0.230
≤ 0.55
1.00-1.60
0.035
0.035
0.30
0.30
0.30
-
OTHER STANARD: ASTM A53, ASTM A106, ASTM 500-98, ASTM501-98, ASTM A519-98, JIS G3441-1994, DIN1629, JIS G3444-1994, ISO 2937.


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