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Seamless Steel Pipes For Low And Medium Pressure

Seamless Steel Pipes For Low And Medium Pressure

seamless steel pipes for low and medium pressure Standard: GB/T 3087, ASTM A179, ASTM A192 Application: For heat exchange tubes, steaming tubes (P≤5.88MPA, T<450℃) Main steel material and grade Chemical composition Mechanical properties

Description

seamless steel pipes for low and medium pressure


Standard: GB/T 3087, ASTM A179, ASTM A192

Application: For heat exchange tubes, steaming tubes (P≤5.88MPA, T<450℃)


Main steel material and grade


Chemical composition

Product
Item
Grade
chemical composition, %
C
Si
Mn
P, ≤
S, ≤Cr, ≤Ni, ≤others

carbon

steel

1
10
0.07-0.13
0.17-0.37
0.35-0.65
0.030
0.030
0.15
0.30
Cu≤0.25
2
20
0.17-0.23
0.17-0.37
0.35-0.65
0.030
0.030
0.15
0.30
Cu≤0.25
3
A179
0.06-0.18
-
0.27-0.63
0.030
0.030
-
-
-
4
A192
0.06-0.18
≥0.25
0.27-0.63
0.030
0.030
-
-
-


Mechanical properties

Item
Grade
Mechanical properties
Hardness

Tensile

strength,

Rm, MPa

Yield strength,

ReL or Rp0.2, MPa

Elongation (A), %
Thickness, mm
Thickness, mm
≤16
>16
<5.1
≥5.1

1
10
335-475
205
195
24
-
-
2
20
410-530
245
235
20
-
-
3
A179
≥325180
35
-
-
4
A192
≥325180
35
77HRB
137HRB


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