DIN 17175 steel pipes are specifically designed for use in elevated temperature environments. Union Steel supplies a range of steel grades under this standard, including St35.8, St45.8, 15Mo3, 13CrMo44, and 10CrMo910. These seamless pipes are manufactured from carbon and low-alloy steels known for their strength and resistance to high pressure and temperature conditions.
Widely utilized in heat exchange equipment, DIN 17175 seamless steel pipes are commonly used in the construction of power engineering systems such as boilers, heating coils, stoves, heaters, and heat exchanger tubes. They are also ideal for boiler installations, high-pressure pipelines, tank fabrication, and specialized machinery operating in high-temperature environments (above 450°C).
Union Steel Industry Co., Ltd is professional seamless steel pipes manufacturer, for more details, please contact:sales@union-steels.com
DIN 17175 Steel Pipe Chemical Composition
|
DIN 17175 Steel Grade
|
C
|
Si
|
Mn
|
P
|
S
|
Cr
|
Mo
|
Ni% max
|
|
St35.8
|
≤0.17
|
0.10-0.35
|
0.40-0.80
|
≤0.040
|
≤0.040
|
/
|
/
|
-
|
|
St45.8
|
≤0.21
|
0.10-0.35
|
0.40-1.20
|
≤0.040
|
≤0.040
|
/
|
/
|
-
|
|
15Mo3
|
0.12-0.20
|
0.10-0.35
|
0.40-0.80
|
≤0.035
|
≤0.035
|
/
|
0.25-0.35
|
0,25- 0,35
|
|
13CrMo44
|
0.10-0.18
|
0.10-0.35
|
0.40-0.70
|
≤0.035
|
≤0.035
|
0.70-1.10
|
0.46-0.65
|
0.45- 0.65
|
|
10CrMo910
|
0.08-0.15
|
≤0.50
|
0.40-0.70
|
≤0.035
|
≤0.035
|
0.20-0.25
|
0.90-1.20
|
0.90- 1.20
|
DIN 17175 Steel Pipe Mechanical Property
|
DIN 17175 Steel Grade
|
Yield Strength (Mpa)
|
Tensile Strength (Mpa)
|
Elongation(%)
|
|
St35.8
|
≥235
|
360-480
|
25
|
|
St45.8
|
≥255
|
410-530
|
21
|
|
15Mo3
|
≥275
|
450-600
|
20
|
|
13CrMo44
|
≥290
|
440-590
|
20
|
|
10CrMo910
|
≥280
|
450-600
|
18
|
DIN 17175 Steel Pipe Equivalent Steel Grade
|
Old
|
New
|
|
Execution
|
Norm
|
Steel grade
|
Execution
|
Norm
|
Steel grade
|
|
Welded
|
DIN 1626
|
St.37.0
|
Welded
|
DIN EN 10217-1
|
P235TR2
|
|
Welded
|
DIN 1626
|
St.52.2
|
Welded
|
DIN EN 10217-3
|
P355N
|
|
Seamless
|
DIN 1629
|
St.37.0
|
Seamless
|
DIN EN 10216-1
|
P235TR2
|
|
Seamless
|
DIN 1629
|
St.52.2
|
Seamless
|
DIN EN 10216-3
|
P355N
|
|
Seamless
|
DIN 17175
|
St.35.8/1
|
Seamless
|
DIN EN 10216-2
|
P235GH
|
|
Seamless
|
ASTM A106*
|
Grade B
|
Seamless
|
DIN EN 10216-2
|
P265GH
|
|
Seamless
|
ASTM A333*
|
Grade 6
|
Seamless
|
DIN EN 10216-4
|
P265NL
|
Inspection and Test of DIN 17175 Seamless Steel Pipe
Chemical Composition Inspection
Mechanical Properties Test(Tensile Strength,Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test)
Surface and Dimension Test
No-destructive Test
Hydrostatic Test
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