DIN 17175 alloy steel pipe

is just a big class,and it has many classifivations. We mainly produce DIN 17175 ST35.8,DIN 17175 ST45.8, and steel pipes.

DIN 17175 steel pipes are used in boiler installations, high-pressure pipelines and tank construction and special machinery for both high (градусов 600) temperature and high-pressure devices. This alloy steel pipe is just a big class,and it has many classifivations.

We mainly produce DIN 17175 ST35.8,DIN 17175 ST45.8, and 10CrMo910 steel pipes.

Steel grade:

Chemical Compositions of DIN 17175 steel pipes (%)
Grade C Si Mn P S Cr Mo
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
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
10CrMo910 0.08-0.15 ≤0.50 0.40-0.70 ≤0.035 ≤0.035 0.20-0.25 0.90-1.20
Mechanical Properties of DIN17175 steel pipe
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
We offer collection of 13CrMo44 Seamless Steel Pipes that finds extensive application in a number of industries.17175 Welded Steel Tubes as well has a number of more excellent features to provide like low maintenance, highly demanded, efficient working, and so on.
DIN 17175 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
Packing:
  • Inner packing:Capson two ends of every pipe
  • Packing: Bare/bundles/crates/crate protection at the both sides of tubes or as per customers’ requirements .
  • Surface treatment:Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting.
  • Marking: as per customer’s requirement

Differences beween 15Mo3 and 16Mo3

Q: I am confused when it comes to 15Mo3 and 16Mo3 for seamless tube and shell of pressure vessel respectively, for both of their steel number are 1.5415. Could anyone explain for me or recommend some books or articles for me to read? And is there ASME steels equivalent to 15Mo3 and 16Mo3 respectively?

A: 15Mo3 was the designation in DIN 17155, replaced in 1993 by EN 10028-2. At the same time, the name was changed to 16Mo3, maintaining the steel number 1.5415. There are small differences in minimum values between both.
As fat as I know there is no exact equivalent steel grade in ASME. The nearest is SA 204 Grade A with 0,5%Mo (against 0,3% for 16Mo3)

15Mo3 Mechanical Property

Grade

15Mo3 Mechanical Property

Thickness

Yield

15Mo3

mm

Min Mpa

6-16

275

16-40

270

40-60

260

60-100

240

100-150

220