| chemical Composition, Mass Fraction (%) |
| grade |
|
C |
Mn |
Mo |
Cr |
Ni |
Cu |
P |
S |
Si |
| |
Type |
min |
max |
min |
max |
min |
max |
min |
max |
max |
max |
max |
max |
max |
| 1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
| H40 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
0.03 |
— |
| J55 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
0.03 |
— |
| K55 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
0.03 |
— |
| N80 |
1 |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
0.03 |
0.03 |
— |
| N80 |
Q |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
0.03 |
0.03 |
— |
| R95 |
— |
— |
0.45 c |
— |
1.9 |
— |
— |
— |
— |
— |
— |
0.03 |
0.03 |
0.45 |
| L80 |
1 |
— |
0.43 a |
— |
1.9 |
— |
— |
— |
— |
0.25 |
0.35 |
0.03 |
0.03 |
0.45 |
| L80 |
9Cr |
— |
0.15 |
0.3 |
0.6 |
0.9 |
1.1 |
8 |
10 |
0.5 |
0.25 |
0.02 |
0.03 |
1 |
| L80 |
13Cr |
0.15 |
0.22 |
0.25 |
1 |
— |
— |
12 |
14 |
0.5 |
0.25 |
0.02 |
0.03 |
1 |
| C90 |
1 |
— |
0.35 |
— |
1.2 |
0.25 b |
0.85 |
— |
1.5 |
0.99 |
— |
0.02 |
0.03 |
— |
| T95 |
1 |
— |
0.35 |
— |
1.2 |
0.25 b |
0.85 |
0.4 |
1.5 |
0.99 |
— |
0.02 |
0.03 |
— |
| C110 |
— |
— |
0.35 |
— |
1.2 |
0.25 |
1 |
0.4 |
1.5 |
0.99 |
— |
0.02 |
0.03 |
— |
| P110 |
e |
— |
— |
— |
— |
— |
— |
— |
— |
— |
— |
0.030 e |
0.030 e |
— |
| Q125 |
1 |
— |
0.35 |
|
1.35 |
— |
0.85 |
— |
1.5 |
0.99 |
— |
0.02 |
0.01 |
— |
| NOTE Elements shown shall be reported in product analysis. |
| a The carbon content for L80 may be increased up to 0.50 % maximum if the product is Oil-quenched or polymer-quenched. |
| b The molybdenum content for Grade C90 Type 1 has no minimum tolerance if the Wall thickness is less than 17.78 mm. |
| c The carbon content for R95 may be increased up to 0.55 % maximum if the product is oil-quenched. |
| d The molybdenum content for T95 Type 1 may be decreased to 0.15 % minimum if the wall thickness is less than 17.78 mm. |
| e For EW Grade p110, the phosphorus content shall be 0.020 % maximum and the sulfur content 0.010 % maximum. |
