Boiler tubes made of heat-resistant steel (German Standard - DIN 17175) Standard:
DIN 17175 ---- German Industrial Standard
Uses:
Suitable for piping for boiler industry.
Main production steel pipe grades:
St35.8, St45.8, 15Mo3, 13CrMo44, 10CrMo910 and so on.
Other grades of steel pipes can also be supplied upon negotiation.
physical property
|
Standard |
Grade |
tensile strength(MPa) |
yield strength(MPa) |
elongation(%) |
|
DIN 17175 |
St35.8(carbon) |
360～480 |
≥235 |
≥25 |
|
St45.8(carbon) |
410～530 |
≥255 |
≥21 |
|
|
15Mo3(alloy) |
450～600 |
≥270 |
≥20 |
|
|
13CrMo44(alloy) |
440～590 |
≥290 |
≥20 |
|
|
10CrMo910(alloy) |
450～600 |
≥280 |
≥18 |
Chemical composition
|
Standard |
Grade |
Chemical composition | |||||
|
C |
Si |
Mn |
P,S |
Cr |
Mo |
||
|
DIN 17175 |
St35.8 |
≤0.17 |
0.10～0.35 |
0.40～0.80 |
≤0.030 |
/ |
/ |
|
St45.8 |
≤0.21 |
0.10～0.35 |
0.40～1.20 |
≤0.030 |
/ |
/ |
|
|
15Mo3 |
0.12～0.20 |
0.10～0.35 |
0.40～0.80 |
≤0.030 |
/ |
0.25～0.35 |
|
|
13CrMo44 |
0.10～0.18 |
0.10～0.35 |
0.40～0.70 |
≤0.030 |
0.70～1.10 |
0.45～0.65 |
|
|
10CrMo910 |
0.08～0.15 |
≤0.50 |
0.40～0.70 |
≤0.030 |
2.00～2.50 |
0.90～1.20 |
|
