Seamless steel pipe- pipeline
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ST45.8 boiler tube
1.Standard:GB5310
2.Grade:20G 25MoG 15MoG 15CrMoG 12Cr2MoG 12Cr1MoVG
3.Thickness:1-15mm
4.OD:5-200mm
ST45.8/III high pressure boiler tube
1.Standard:GB5310
2.Grade:20G 25MoG 15MoG 15CrMoG 12Cr2MoG 12Cr1MoVG
3.Thickness:1-15mm
4.OD:5-200mm
5.application:It is used for heating-pipelines,containers,coal-saving devices superheaters and reheaters of high presure boilers(P>9.8Mpa,450degree<650degree)
6.Package:seaworthy or as per buyers'requirement
|
Standard |
Grade |
Chemical Composition (%) |
||||||
|
C |
Si |
Mn |
V |
Cr |
Mo |
P.S |
||
|
|
20G |
0.17-0.24 |
0.17-0.37 |
0.35-0.65 |
/ |
/ |
/ |
<=0.03 |
|
25MnG |
0.22-0.30 |
0.17-0.37 |
0.70-1.00 |
/ |
/ |
/ |
<=0.03 |
|
|
15MoG |
0.12-0.20 |
0.17-0.37 |
0.40-0.80 |
/ |
/ |
0.25-0.35 |
<=0.03 |
|
|
15CrMoG |
0.12-0.18 |
0.17-0.37 |
0.40-0.70 |
/ |
0.80-1.10 |
0.40-0.55 |
<=0.03 |
|
|
12Cr2MoG |
0.08-0.15 |
0.17-0.37 |
0.40-0.70 |
/ |
2.00-2.50 |
0.90-1.20 |
<=0.03 |
|
|
12Cr1MoVG |
0.08-0.15 |
0.17-0.37 |
0.40-0.70 |
0.15-0.30 |
0.90-1.20 |
0.25-0.35 |
<=0.03 |
|
|
Mechanical Properties |
Tensile Strength(Mpa) |
Yield Strength(Mpa) |
Elongation (%) |
|||||
|
20G |
410-550 |
>=245 |
>=24 |
|||||
|
25MnG |
>=415 |
>=240 |
>=22 |
|||||
|
15MoG |
450-600 |
>=270 |
>=22 |
|||||
|
15CrMoG |
440-640 |
>=235 |
>=21 |
|||||
|
12Cr2MoG |
450-600 |
>=280 |
>=20 |
|||||
|
12Cr1MoVG |
470-640 |
>=255 |
>=21 |
|||||
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