Specifications: diameter: 320 to 127 mm thickness: 0.4 to 12.7 mm Length: 6 m above, and, in accordance with customer demand, supply and other specifications of steel pipe
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EN10297-1 Seamless steel pipe


EN10297-1 Seamless steel pipe

Steel 
grade

C

Si

Mn

P

S

Cr

Mo

Ni

Other elem
ents
Steel name

 

Steel num
ber

m
in

m
ax

m
in

m
ax

m
in

m
ax

m
ax

m
ax

m
in

m
ax

m
in

m
ax

m
in

m
ax

 
E235

 

1.0
308

 

0.
17

-

0.
35

-

1.
20

0.0
30

0.0
35

 

 

 

 

 

 

 
E275

 

1.0
225

 

0.
21

-

0.
35

-

1.
40

0.0
30

0.0
35

 

 

 

 

 

 

 
E315

 

1.0
236

 

0.
21

-

0.
30

-

1.
50

0.0
30

0.0
35

 

 

 

 

 

 

 
E355 b

 

1.0
580

 

0.
22

-

0.
55

-

1.
60

0.0
30

0.0
35

 

 

 

 

 

 

 
E470

 

1.0
536

0.
16

0.
22

0.10

0.
50

1.
30

1.
70

0.0
30

0.0
35

 

 

 

 

 

 

Al 
min 0.0
10,
N max. 0.0
20,
Nb Max.
0.07,
V 0.
08/
0.
15
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
C22E

 

1.1
151

0.
17

0.
24

-

0.
40

0.
40

0.
70

0.0
35

0.0
35

 

 

 

 

 

 

 
C35E

 

1.1
181

0.
32

0.
39

-

0.
40

0.
50

0.
80

0.0
35

0.0
35

 

 

 

 

 

 

 
C45E

 

1.1
191

0.
42

0.
50

-

0.
40

0.
50

0.
80

0.0
35

0.0
35

 

 

 

 

 

 

 
C60E

 

1.1
221

0.
57

0.
65

-

0.
40

0.
60

0.
90

0.0
35

0.0
35

 

 

 

 

 

 

 
 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
25CrMo4

 

1.7
218

0.
22

0.
29

 

0.
40

0.
60

0.
90

0.0
35

0.0
35

0.
90

1.
20

0.
15

0.
30

-

-

 
30CrMo4

 

1.7
216

0.
27

0.
34

 

0.
35

0.
35

0.
60

0.0
35

0.0
35

0.
80

1.
15

0.
15

0.
30

-

-

 
34CrMo4

 

1.7
220

0.
30

0.
37

 

0.
40

0.
60

0.
90

0.0
35

0.0
35

0.
90

1.
20

0.
15

0.
30

-

-

 
42CrMo4

 

1.7
225

0.
38

0.
45

 

0.
40

0.
60

0.
90

0.0
35

0.0
35

0.
90

1.
20

0.
15

0.
30

-

-

 

 

Steel 
Grade

Deli
very

cond
itiion

Minimum tensile properties

Steel name

Steel num
ber

Yield 
strength(ReH)
Mpa b

Tensile 
strength(Rm)
Mpa

Elong
ation A
%

For T in mm

For T in mm

l

t

≤16

＞16

＞40

＞65

＞80

≤16

＞16

＞40

＞65

 


≤40


≤65


≤80


≤100

 


≤40


≤65


≤100

E235

1.0
308

+AR 
ora 
+N

235

225

215

205

195

360

360

360

340

25

23

E275

1.0
225

+AR 
ora 
+N

275

265

255

245

235

410

410

410

380

22

20

E315

1.0
236

+AR
ora
+N

315

305

295

280

270

450

450

450

420

21

19

E355

1.0
580

+AR 
ora
+N

355

345

335

315

295

490

490

490

470

20

18

E470

1.0
536

+AR

470

430

-

-

-

650

600

-

-

17

15

 

Steel Grade

Minimum tensile properties

Steel name

Steel number

Yeld strength(ReH)
MPa

Tensile strength(Rm)
MPa

Elongation A
%

For T in mm

For T in mm

For T in mm

≤16

＞16

＞40

≤16

＞16

＞40

≤16

＞16

＞40

 


≤40


≤80

 


≤40


≤80


≤40


≤80

 

 

 

 

 

 

l

t

l

t

l

t

C22E

1.151

240

210

210

430

410

410

24

22

25

23

25

23

C35E

1.1181

300

270

270

550

520

520

18

16

19

17

19

17

C45E

1.1191

340

305

305

620

580

580

14

12

16

14

16

14

C60E

1.1221

390

350

340

710

670

670

10

8

11

9

11

9

 

Steel Grade

Minimum tensile properties

Steel name

Steel num
ber

Yield 
strength(ReH)
Mpa

Tensile 
strength
(Rm)
Mpa

Elong
ation A
%

For T in mm

For T in mm

For T in mm

≤8

＞
8

＞
20

＞
50

≤8

＞
8

＞
20

＞
50

≤8

＞
8

＞
20

＞
50

 


≤
20


≤
50


≤
80

 


≤
20


≤
50


≤
80

 


≤
20


≤
50


≤
50

 

 

 

 

 

 

 

 

l

t

l

t

l

t

l

t

C22E

1.1
151

340

2
90

2
70

2
60

5
00

4
70

4
40

4
20

20

1
8

22

2
0

2
2

2
0

2
2

2
0

C35E

1.1
181

430

3
80

3
20

2
90

6
30

6
00

5
50

5
00

17

1
5

19

1
7

2
0

1
8

2
0

1
8

C45E

1.11
91

490

4
30

3
70

3
40

7
00

6
50

6
30

6
00

14

1
2

1
6

1
4

1
7

1
5

1
7

1
5

C60E

1.1
221

580

5
20

4
50

4
20

8
50

8
00

7
50

7
10

11

9

1
3

1
1

1
4

1
2

1
4

1
2

 

Steel Grade

Minimum tensile properties

Steel name

Steel nu
mber

Yield 
strength(ReH)
Mpa

Tensile 
strength(Rm)
Mpa

A
%

For T in mm

For T in mm

For T in mm

≤
8

＞
8

＞
20

＞
50

≤8

＞
8

＞
20

＞
50

≤8

＞8

＞
20

＞
50

 

≤
20

≤
50

≤
80

 

≤
20

≤
50

≤
80

 

≤20

≤
50


≤
80

l

t

l

t

l

t

l

t

25Cr
Mo4

1.7
218

7
00

6
00

4
50

4
00

9
00

8
00

7
00

6
50

12

10

1
4

1
2

1
5

1
3

1
6

1
4

30Cr
Mo4

1.7
216

7
50

6
30

5
20

4
80

9
50

8
50

7
50

7
00

12

10

1
3

1
1

1
4

1
2

1
5

1
3

34C
rMo4

1.7
220

8
00

6
50

5
50

5
00

10
00

9
00

8
00

7
50

11

9

1
2

1
0

1
4

1
2

1
5

1
3

42C
rMo4

1.7
225

9
00

7
50

6
50

5
50

11
00

10
00

9
00

8
00

10

8

1
1

9

1
2

1
0

1
3

1
1

 

 

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