Made of heat-resistant steel boiler pipes (German standards-DIN 17175)


Standard
DIN 17175----
German Industrial Standard

Purpose:

Pipe for boilerindustry.

The main production steel grades:
St35.8
St45.815Mo313CrMo4410CrMo910 etc.
After consultation, can also supply other grades of steel pipe.

Mechanicalproperties

Standard

Grade

Tensile strength (MPa)

Yield strength (MPa)

Elongation (%)

DIN 17175

St35.8

360480

≥235

≥25

St45.8

410530

≥255

≥21

15Mo3

450600

≥270

≥20

13CrMo44

440590

≥290

≥20

10CrMo910

450600

≥280

≥18


 

Chemical composition:

Standard

Grade

Chemical Composition

C

Si

Mn

PS

Cr

Mo

DIN 17175

St35.8

≤0.17

0.100.35

0.400.80

≤0.030

/

/

St45.8

≤0.21

0.100.35

0.401.20

≤0.030

/

/

15Mo3

0.120.20

0.100.35

0.400.80

≤0.030

/

0.250.35

13CrMo44

0.100.18

0.100.35

0.400.70

≤0.030

0.701.10

0.450.65

10CrMo910

0.080.15

≤0.50

0.400.70

≤0.030

2.002.50

0.901.20