| Heat Analysis Chemical Ranges |
| and Limits of Alloy Steel Bars |
| Chemical Ranges and Limits, Percent |
| |
|
Open-Hearth |
|
|
| or Basic- |
Electric- |
Maximum |
| Maximum |
Oxygen |
Furnace |
Limit |
| Element |
of Specified Element |
Steel |
Steel |
Percenta |
| Carbon |
to 0.55 incl. |
0.05 |
0.05 |
— |
| |
over 0.55/0.70 incl. |
0.08 |
0.07 |
— |
| |
over 0.70/0.80 incl. |
0.10 |
0.09 |
— |
| |
over 0.80/0.95 incl. |
0.12 |
0.11 |
— |
| |
over 0.95/1.35 incl. |
0.13 |
0.12 |
— |
| Manganese |
to 0.60 incl. |
0.20 |
0.15 |
— |
| |
over 0.60/0.90 incl. |
0.20 |
0.20 |
— |
| |
over 0.90/1.05 incl. |
0.25 |
0.25 |
— |
| |
over 1.05/1.90 incl. |
0.30 |
0.30 |
— |
| |
over 1.90/2.10 incl. |
0.40 |
0.35 |
— |
| Phosphorus |
basic open-hearth or basic-oxygen steel |
— |
— |
0.035c |
| |
acid open-hearth steel |
— |
— |
0.050 |
| |
basic electric-furnace steel |
— |
— |
0.025 |
| |
acid electric-furnace steel |
— |
— |
0.050 |
| Sulfur |
to 0.50 incl. |
0.015 |
0.015 |
— |
| |
over 0.050/0.07 incl. |
0.02 |
0.02 |
— |
| |
over 0.07/0.10 incl. |
0.04 |
0.04 |
— |
| |
basic open-hearth or basic-oxygen steel |
— |
— |
0.040c |
| |
acid open-hearth steel |
— |
— |
0.050 |
| |
basic electric-furnace steel |
— |
— |
0.025 |
| |
acid electric-furnace steel |
— |
— |
0.050 |
| Silicon |
to 0.20 incl. |
0.08 |
0.08 |
— |
| |
over 0.20/0.30 incl. |
0.15 |
0.15 |
— |
| |
over 0.30/0.60 incl. |
0.20 |
0.20 |
— |
| |
over 0.60/1.00 incl. |
0.30 |
0.30 |
— |
| |
over 1.00/2.20 incl. |
0.40 |
0.35 |
— |
| |
acid steelsb |
— |
— |
— |
| Nickel |
to 0.50 incl. |
0.20 |
0.20 |
— |
| |
over 0.50/1.50 incl. |
0.30 |
0.30 |
— |
| |
over 1.50/2.00 incl. |
0.35 |
0.35 |
— |
| |
over 2.00/3.00 incl. |
0.40 |
0.40 |
— |
| |
over 3.00/5.30 incl. |
0.50 |
0.50 |
— |
| |
over 5.30/10.00 incl. |
1.00 |
1.00 |
— |
| Chromium |
to 0.40 incl. |
0.15 |
0.15 |
— |
| |
over 0.40/0.90 incl. |
0.20 |
0.20 |
— |
| |
over 0.90/1.05 incl. |
0.25 |
0.25 |
— |
| |
over 1.05/1.60 incl. |
0.30 |
0.30 |
— |
| |
over 1.60/1.75 incl. |
b |
0.35 |
— |
| |
over 1.75/2.10 incl. |
b |
0.40 |
— |
| |
over 2.10/3.99 incl. |
b |
0.50 |
— |
| Molybdenum |
to 0.10 incl. |
0.05 |
0.05 |
— |
| |
over 0.10/0.20 incl. |
0.07 |
0.07 |
— |
| |
over 0.20/0.50 incl. |
0.10 |
0.10 |
— |
| |
over 0.50/0.80 incl. |
0.15 |
0.15 |
— |
| |
over 0.80/1.15 incl. |
0.20 |
0.20 |
— |
| Tungsten |
to 0.50 incl. |
0.20 |
0.20 |
— |
| |
over 0.50/1.00 incl. |
0.30 |
0.30 |
— |
| |
over 1.00/2.00 incl. |
0.50 |
0.50 |
— |
| |
over 2.00/4.00 incl. |
0.60 |
0.60 |
— |
| Vanadium |
to 0.25 incl. |
0.25 |
0.25 |
— |
| |
over 0.25/0.50 incl. |
0.10 |
0.10 |
— |
| Aluminum |
up to 0.10 incl. |
0.05 |
0.05 |
— |
| |
over 0.10/0.20 incl. |
0.10 |
0.10 |
— |
| |
over 0.20/0.30 incl. |
0.15 |
0.15 |
— |
| |
over 0.30/0.80 incl. |
0.25 |
0.25 |
— |
| |
over 0.80/1.30 incl. |
0.35 |
0.35 |
— |
| |
over 1.30/1.80 incl. |
0.45 |
0.45 |
— |
| Copper |
to 0.60 incl. |
0.20 |
0.20 |
— |
| |
over 0.60/1.50 incl. |
0.30 |
0.30 |
— |
| |
over 1.50/2.00 incl. |
0.35 |
0.35 |
— |
