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Chapter 4
Carbon & Alloy Steel - Forgings
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CHEMICAL COMPOSITION OF CARBON
STEEL FORGINGS
|
ASTM Gr/Cl |
UNS |
C |
Mn |
Si |
S |
P |
Application |
| A 105 |
K03504 |
0.35 |
0.60-1.05 |
0.35 |
0.050 |
0.040 |
Piping
components |
| A 181 cl
60, 70 |
K03502 |
0.35 |
1.10 |
0.35 |
0.050 |
0.050 |
General
purpose piping |
| A 266 cl 1,
2 |
K03506 |
0.35 |
0.40-1.05 |
0.15-0.35 |
0.025 |
0.025 |
Pressure
vessel components |
| A 266 cl 3 |
K05001 |
0.45 |
0.50-0.90 |
0.35 |
0.025 |
0.025 |
Pressure
vessel components |
| A 266 cl 4 |
K03017 |
0.30 |
0.80-1.35 |
0.15-0.35 |
0.025 |
0.025 |
Pressure
vessel components |
| A 350 gr
LF1 |
K03009 |
0.30 |
1.35 |
0.15-0.30 |
0.040 |
0.035 |
Piping -
notch toughness |
| A 350 gr
LF2 |
K03011 |
0.30 |
1.35 |
0.15-0.30 |
0.040 |
0.035 |
Piping -
notch toughness |
| A 694
a, b |
K03014 |
0.30 |
1.50 |
0.13-0.37 |
0.030 |
0.030 |
Transmission service pipe |
| A 707 gr L1a |
K02302 |
0.23 |
1.60 |
0.37 |
0.040 |
0.035 |
Low
temperature service |
| A 707 gr L2a |
K03301 |
0.33 |
1.45 |
0.37 |
0.040 |
0.035 |
Low
temperature service |
|
a. Product analysis. |
|
b. Chemistry listed is for all grades of ASTM A 694. |
|
Single values are maximum, unless otherwise specified. |
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