Shangdong Poder Metal Producto S.A. es un fabricante y exportador profesional de Petróleo tubo de grietas inoxidable en China. Pricipalmente los productos son exportados a Europa, América, Asia, Oriente Medio, Rusia, África y otros países de todo el mundo, estamos buscando más socios, de Petróleo tubo de grietas inoxidable para ampliar nuestra cooperación.
todo 1 productos
Ver: 
Standard:
GB9948 Chinese national standard
Application:
Served as for furnace tubes,heat exchange tubes and pipelines in petroleum and refinery plants
Model No.of major steel tubes:
1n 9n 1Er!rMn 1rhMn 1f:hM0 etC
Diamensional tolerances:
|
Types of steel tubes
|
Outer diameter
|
Wall thickness
|
|
Cold-rolled tubes
|
Tube sizes(mm)
|
Tolerances(mm)
|
Tube sizes (mm)
|
Tolerances(mm)
|
|
>30~50
|
±0.3
|
≤30
|
±10
|
|
>50~219
|
±0.8
|
|
Hot-rolled tubes
|
>219
|
±1.0
|
>20
|
±10
|
Mechanical properties:
|
Standard codes
|
Models of steel tubes
|
TENSILE STRENGTHMPa
|
YIELD POINTMPa
|
Elongation
|
Impact testJ
|
Brinell hardnessHB
|
Delivery Status
|
|
GB9948
|
10
|
330490
|
≥205
|
≥24
|
/
|
/
|
Normalizing
|
|
20
|
410550
|
≥245
|
≥21
|
≥39
|
/
|
Normalizing
|
|
15CrMo
|
440640
|
≥235
|
≥21
|
≥47
|
≤170
|
Normalizing+Tempering
|
|
1Cr2Mo
|
≥390
|
≥175
|
≥22
|
≥92
|
≤179
|
Normalizing+Tempering
|
|
1Cr5Mo
|
≥390
|
≥195
|
≥22
|
≥92
|
≤187
|
Annealing
|
Chemical composition:
|
Standard codes
|
Models of steel tubes
|
Chemical compositions
|
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Mo
|
Ni
|
|
GB9948
|
10
|
0.070.14
|
0.170.37
|
0.350.65
|
≤0.035
|
≤0.035
|
≤0.15
|
/
|
≤0.25
|
|
20
|
0.170.24
|
0.170.37
|
0.350.65
|
≤0.035
|
≤0.035
|
≤0.25
|
/
|
≤0.25
|
|
15CrMo
|
0.120.18
|
0.170.37
|
0.400.70
|
≤0.035
|
≤0.035
|
0.801.10
|
0.400.55
|
≤0.30
|
|
1Cr2Mo
|
≤0.15
|
0.501.00
|
0.300.60
|
≤0.035
|
≤0.030
|
2.152.85
|
0.450.65
|
/
|
|
1Cr5Mo
|
≤0.15
|
≤0.50
|
≤0.60
|
≤0.035
|
≤0.030
|
4.006.00
|
0.450.60
|
≤0.60
|
