DIN17175/EN10216-2

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OD(mm) Wall Thickness Unit(mm)
  2-3 3-4 4-5 5-6 6-7 7-8 8-9 9-10 10-11 11-12 12-16 16-18 18-20 20-24 24-30
Φ20-Φ23 ● ● ● ● ● ●                  
Φ24-Φ36 ● ● ● ● ● ● ● ●              
Φ38-Φ43 ● ● ● ● ● ● ● ● ● ●          
Φ44-Φ60 ● ● ● ● ● ● ● ● ● ●          
Φ61-Φ76     ● ● ● ● ● ● ● ●          
Φ89-Φ114     ● ● ● ● ● ● ● ● ● ● ●    
Φ121-133       ● ● ● ● ● ● ● ● ● ● ●  
Φ140-Φ159       ● ● ● ● ● ● ● ● ● ● ● ●
Φ168-Φ180       ● ● ● ● ● ● ● ● ● ● ● ●

OD(mm)
Wall Thickness Unit(mm)
/
10.5-12
12.5-17
18-20
21-25
26-30
Φ127
●
●
●
●
●
Φ133
●
●
●
●
●
Φ140
●
●
●
●
●
Φ146
●
●
●
●
●
Φ152
●
●
●
●
●
Φ159
●
●
●
●
●
Φ168
●
●
●
●
●
Φ180
●
●
●
●
●

Heat-resisting seamless steel tube

Application:

It is used for the pipelines of boiler industry.

Size(mm):

0.D.: 6.0∼219.0 W.T:1∼30 L:max 12000

steel,chemical composition(DIN17175):


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