EN 10297-1 is one of the standards published by the European Organization for Standardization. The full name of this standard is "Technical delivery conditions for seamless round steel pipes, Part 1: Non-alloy and alloy steel pipes for mechanical and general engineering purposes", which can also be referred to as "EN 10297-1 Seamless round steel pipe standard".
|
Steel Grade |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
Ni |
Cu |
|||||||||||
|
Min. |
Max. |
Min. |
Max. |
Min. |
Max. |
Max. |
Max. |
Min. |
Max. |
Min. |
Max. |
Min. |
Max. |
Max. |
||||||
|
41Cr4 |
0.38 |
0.45 |
- |
0.40 |
0.60 |
0.90 |
0.035 |
0.035 |
0.90 |
1.20 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
- |
|
25CrMo4 |
0.22 |
0.29 |
- |
0.40 |
0.60 |
0.90 |
0.035 |
0.035 |
0.90 |
1.20 |
0.15 |
0.30 |
- |
- |
- |
- |
- |
- |
- |
- |
|
30CrMo4 |
0.27 |
0.34 |
- |
0.35 |
0.35 |
0.60 |
0.035 |
0.035 |
0.80 |
1.15 |
0.15 |
0.30 |
- |
- |
- |
- |
- |
- |
- |
- |
|
34CrMo4 |
0.30 |
0.37 |
- |
0.40 |
0.60 |
0.90 |
0.035 |
0.035 |
0.90 |
1.20 |
0.15 |
0.30 |
- |
- |
- |
- |
- |
- |
- |
- |
|
42CrMo4 |
0.38 |
0.45 |
- |
0.40 |
0.60 |
0.90 |
0.035 |
0.035 |
0.90 |
1.20 |
0.15 |
0.30 |
- |
- |
- |
- |
- |
- |
- |
- |
|
36CrNiMo4 |
0.32 |
0.40 |
- |
0.40 |
0.50 |
0.80 |
0.035 |
0.035 |
0.90 |
1.20 |
0.15 |
0.30 |
0.90 |
1.20 |
- |
- |
- |
- |
- |
- |
|
30CrNiMo4 |
0.26 |
0.34 |
- |
0.40 |
0.30 |
0.30 |
0.035 |
0.035 |
1.8 |
2.20 |
0.30 |
0.50 |
1.80 |
2.20 |
- |
- |
- |
- |
- |
- |
|
41NiCrMo7-3-2 |
0.38 |
0.44 |
- |
0.30 |
0.60 |
0.90 |
0.025 |
0.025 |
0.70 |
0.90 |
0.15 |
0.30 |
1.65 |
2.00 |
0.25 |
- |
- |
- |
- |
- |
|
If there are enough other nitrogen adhesives, the minimum aluminium content is not applicable. The maximum total content of Nb and V is 0.20%. |
||||||||||||||||||||
Mechanical Properties of Seamless Circular Tube:
|
Steel Grade |
Yield Strength (ReH) Mpa |
Tensile Strength (Rm) Mpa |
Elongation (A%) min |
|||||||||||||
|
For T in mm |
For T in mm |
|||||||||||||||
|
≤ 8 |
>8 ≤ 20 |
>20 ≤ 50 |
>50 ≤ 80 |
≤ 8 |
>8 ≤ 20 |
>20 ≤ 50 |
>50 ≤80 |
≤ 8 |
>8 ≤ 20 |
>20 ≤ 50 |
>50 ≤ 80 |
|||||
|
l |
t |
l |
t |
l |
t |
l |
t |
|||||||||
|
41Cr4 |
800 |
660 |
560 |
- |
1000 |
900 |
800 |
- |
11 |
9 |
12 |
10 |
15 |
13 |
16 |
14 |
|
25CrMo4 |
700 |
600 |
450 |
400 |
900 |
800 |
700 |
650 |
12 |
10 |
14 |
12 |
15 |
13 |
16 |
14 |
|
30CrMo4 |
750 |
630 |
520 |
480 |
950 |
850 |
750 |
700 |
12 |
10 |
13 |
11 |
14 |
12 |
15 |
13 |
|
34CrMo4 |
800 |
650 |
550 |
500 |
1000 |
900 |
800 |
750 |
11 |
9 |
12 |
10 |
14 |
12 |
15 |
13 |
|
42CrMo4 |
900 |
750 |
650 |
550 |
1100 |
1000 |
900 |
800 |
10 |
8 |
11 |
9 |
12 |
10 |
13 |
11 |
|
36CrNiMo4 |
900 |
800 |
700 |
600 |
1100 |
1000 |
900 |
800 |
10 |
8 |
11 |
9 |
12 |
10 |
13 |
11 |
|
30CrNiMo4 |
1050 |
1050 |
900 |
800 |
1250 |
1250 |
1100 |
1000 |
9 |
7 |
9 |
7 |
10 |
8 |
11 |
9 |
|
41NiCrMo7-3-2 |
950 |
870 |
800 |
750 |
1150 |
1050 |
1000 |
900 |
9 |
7 |
10 |
8 |
11 |
9 |
12 |
10 |
Alloy thick wall seamless pipe

EN 10297-1 Seamless Tube Size:
OD: 26.9-610mm
WT: 2.3-100mm
Length: 3000-12000mm
Grade: 41Cr4, 25CrMo4, 30CrMo4, 34CrMo4, 42CrMo4, 36CrNiMo4, 30CrNiMo4, 41NiCrMo7-3-2 which are covered by EN 109207-1
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AR(As Hot Rolled only)
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