●Standard: GB5310-1995 GB5310��ASME SA-106,ASME SA-192,ASME SA-209,ASME SA-210,ASME SA-213,ASME SA-335,DIN17175,JIS G3462
●Function: For high pressure boiler use
H-Press Boiler Pipe |
Standard
|
steel grade
|
��19-��159×2-18 |
GB5310 |
20G��20MnG ��25MnG�� 12Cr1MoVG��15CrMoG 12Cr2MoG��12Cr2MoWVTiB 10Cr9Mo1VNb |
||
ASME SA-106 |
SA-106B��106C |
||
ASME SA-192 |
SA-192 |
||
ASME SA-209 |
SA-209T1��SA-209T1a��SA-209T1b |
||
ASME SA-210 |
SA-210A��1��SA-210C |
||
ASME SA-213 |
SA-213 T2 ��SA-213 T11��SA-213 T12 SA-213 T22��SA-213 T23 ��SA-213T91�� |
||
ASME SA-335 |
SA-335 P2��SA-335 P12�� SA-335 P22��SA-335P91 |
||
DIN 17175 |
St35.8��St45.8��17Mn4 19Mn5��15Mo3��13CrMo44 10CrMo910 |
||
JIS G3462 |
STBA12 |
Permissible tolerance of wall thickness: |
|||
Standard |
Wall thickness |
Permissible tolerance of wall thickness |
|
GB5310-1995 |
<3.5 |
+15%( +0.48mm) |
|
-10%( +0.32mm) |
|||
3.5-20 |
+15%,-10% |
||
>20 |
± 10% |
||
±10%
|
Permissible tolerance of outside diameter |
||
Standard |
Outside diameter |
Permissible deviation |
GB5310-1995 |
57- 159 |
± 1.0%( ±0.5mm) |
>159 |
+12.5%,- 1.0% |
Mechanical Property |
|||||
Standard |
Trademark |
Tensile strength(MPa) |
Yield point �� MPa ��≥ |
Extensibility �� % �� ≥ |
ballistic work ≥ |
GB5310-1995 |
20G |
410-550 |
245 |
24 |
35 |
20MnG |
≥ 415 |
240 |
22 |
35 |
|
25MnG |
≥ 485 |
275 |
20 |
35 |
|
15MoG |
450-600 |
270 |
22 |
35 |
|
20MoG |
≥ 415 |
220 |
22 |
35 |
|
12CrMoG |
410-560 |
205 |
21 |
35 |
|