DIN17175 Grade:St35.8 St45.8 Seamless Steel Boiler Tube
1.Standard:DIN17175
2. Grade:St35.8 ST37.0 St45.8 St52.0
3.OD:10.2-870mm
4.WT:1.65-40mm
5.Chemical composition and mechanical properties
|
standard
|
material
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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
|
|
|
|
|
|
|
|
|
|
|
standard
|
material
|
Tensile Strength (MPa)
|
Yield Strength (MPa)
|
Elongation(%)
|
|
|
|
|
DIN 17175
|
St35.8
|
360-480
|
≥235
|
≥25
|
|
|
|
|
St45.8
|
410-530
|
≥255
|
≥21
|
|
|
|
|
15Mo3
|
450-600
|
≥270
|
≥20
|
|
|
|
|
13CrMo44
|
440-590
|
≥290
|
≥20
|
|
|
|
|
10CrMo910
|
450-600
|
≥280
|
≥18
|
|
|
|
