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Specifications

DIN17175/EN10216-2
Heat-resisting seamless steel tube
Application: it is used for the pipelines of boiler industry.
DIN17175: St35.8   St45.8   15Mo3
EN10216-2: 195GH   P235GH   P265GH   20MnNb6   16Mo3
 
 
DIN17175 Steel Chemical Composition and Mechanical Properties.
Standard
Grade
Chemical composition
Mechanical Properties
C
Si
Mn
P
S
Cr
Mo
TP (Mpa)
YP
(Mpa)
E
(%)
DIN17175
St35.8
≤0.17
0.1~0.35
0.4~0.8
≤0.03
≤0.03
/
/
360~480
≥235
≥25
St45.8
≤0.21
0.1~0.35
0.4~1.2
≤0.03
≤0.03
/
/
410~530
≥255
≥21
15Mo3
0.12~0.2
0.1~0.35
0.4~0.8.
≤0.03
≤0.03
/
0.25~0.35
460~600
≥270
≥20
 
EN10216-2 Steel Chemical Composition and Mechanical Properties
 
standard
Grade
 Chemical compositon
Mechanical properties
C
Si
Mn
P
S
Cr
Mo
TP
(Mpa)
YP
(Mpa
E(%)
L
T
EN10216-2
195GH
≤0.13
≤0.35
≤0.70
≤0.025
≤0.020
≤0.3
≤0.08
320~440
≥195
≥27
≥25
P235GH
≤0.16
≤0.35
≤1.2
≤0.025
≤0.020
≤0.3
≤0.08
160~500
≥235
≥25
≥23
P265GH
≤0.20
≤0.40
≤1.40
≤0.025
≤0.020
≤0.3
≤0.08
410~570
≥265
≥23
≥21
20MnNb6
≤0.22
0.15~0.35
1.0~1.5
≤0.025
≤0.020
 
 
500~650
≥355
≥22
≥20
16Mo3
0.12~0.2
≤0.35
0.4~0.9
≤0.025
≤0.020
≤0.3
0.25~0.35
450~600
≥280
≥22
≥20