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DIN 17175 Heat-resisting seamless steel tube

DIN 17175 steel pipes are used in boiler installations, high-pressure pipelines and tank construction and special machinery for both high 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.
Application:
used for the pipelines of boiler industry.

Packing:
Inner packing:Caps on 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
Material Comparison Tables (ASTM →KS, JIS, DIN, BS, NBN, NF, UNI) of DIN 17175
DIN 17175-79 SEAMLESS STEEL TUBES FOR ELEVATED TEMPERATURES (DIN17175)
Features Specifications
OD(mm) Wall Thickness Unit(mm)
  2 2.5 3 3.5 4 4.5 5 6 6.5-7 7.5-8 8.5-9 9.5-10 11 12
Φ25-Φ28 ● ● ● ● ● ●                
Φ32   ● ● ● ● ● ●              
Φ34-Φ36   ● ● ● ● ● ●              
Φ38   ● ● ● ● ● ●              
Φ40     ● ● ● ● ●              
Φ42     ● ● ● ● ●              
Φ45     ● ● ● ● ● ●            
Φ48-Φ60     ● ● ● ● ● ● ●          
Φ63.5       ● ● ● ● ● ● ●        
Φ68-Φ73         ● ● ● ● ● ●        
Φ76         ● ● ● ● ● ● ● ● ● ●
Φ80         ● ● ● ● ● ● ● ● ● ●
Φ83         ● ● ● ● ● ● ● ● ● ●
Φ89         ● ● ● ● ● ● ● ● ● ●
Φ95         ● ● ● ● ● ● ● ● ● ●
Φ102         ● ● ● ● ● ● ● ● ● ●
Φ108         ● ● ● ● ● ● ● ● ● ●
Φ114           ● ● ● ● ● ● ● ● ●
Φ121           ● ● ● ● ● ● ● ● ●
Φ127           ● ● ● ● ● ● ● ● ●
Φ133           ● ● ● ● ● ● ● ● ●
Φ140             ● ● ● ● ● ● ● ●
Φ146             ● ● ● ● ● ● ● ●
Φ152             ● ● ● ● ● ● ● ●
Φ159             ● ● ● ● ● ● ● ●
Φ168             ● ● ● ● ● ● ● ●
steel,chemical composition(DN17175)

Standard

Grade

Chemical Composition

Mechanical Property

C

Si

Mn

P≤

S≤

Cr

Mo

(MPa)

(MPa)

(%)

DIN17175

St35.8

≤0.17

0.10~
0.35

0.40~
0.80

0.030

0.030

/

/

360~480

≥235

≥25

St45.8

≤0.21

0.10~
0.35

0.40~
1.20

0.030

0.030

/

/

410~530

≥255

≥21

15Mo3

0.12~
0.20

0.10
~0.35

0.40~
0.80

0.030

0.030

/

0.25~
0.35

460~600

≥270

≥20


Steel, Chemical composition(EN10216-2)
Standard

Grade

Chemical Composition

Mechanical Property

C

Si

Mn

P≤

S≤

Cr≤

Mo

(MPa)

(MPa)

L

t

EN10216-2

195GH

≤0.13

≤0.35

≤0.70

0.025

0.020

0.30

≤0.08

320~440

≥195

≥27

≥25

P235GH

≤0.16

≤0.35

≤1.20

0.025

0.020

0.30

≤0.08

360~500

≥235

≥25

≥23

P265GH

≤0.20

≤0.40

≤1.40

0.025

0.020

0.30

≤0.08

410~570

≥265

≥23

≥21

20MnNb6

≤0.22

0.15~
0.35

1.00~ 1.50

0.025

0.020

-

-

500~650

≥355

≥22

≥20

16Mo3

0.12~
0.20

≤0.35

0.40~ 0.90

0.025

0.020

0.30

0.25~
0.35

450~600

≥280

≥22

≥20

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