ASTM A 633/A633M : 2018 PDF
Standard Specification for Normalized High-Strength Low-Alloy Structural Steel Plates
ASTM A633/A633M-01 PDF
ASTM A633 equivalent
Q345
ASTM A633 is a specification for normalized high-strength low-alloy structural steel plates. Equivalent grades include EStE380 and EN 10113-3 S355ML. For specific applications, like those requiring superior notch toughness at low temperatures, ASTM A633 Grade E is a good choice.
EN 10113-3 S355ML: A European standard equivalent to ASTM A633.
ASTM A572 Grade 50: Some sources indicate it is equivalent to EN S355JR, which is a lower grade than A633.
ASTM A36: A common mild steel grade, but not directly equivalent to A633.
Chemical Composition
The following composition properties are ASTM specifications for A633 grades.
| Grade A | |
| Carbon max | 0.18% |
| Manganese | 1.00-1.35% |
| Phosphorus max | 0.030% |
| Sulfur max | 0.030% |
| Silicon | 0.15-0.50% |
| Columbium | 0.05% max |
| Grade C | |
| Carbon max | 0.20% |
| Manganese | 1.15-1.50% |
| Phosphorus max | 0.030% |
| Sulfur max | 0.030% |
| Silicon | 0.15-0.50% |
| Columbium | 0.01-0.05% |
| Grade D | |
| Carbon max | 0.20% |
| Manganese, ≤1 1/2" thick | 0.70-1.35% |
| Manganese, Over 1 1/2" to & incl 4" thick | 1.00-1.60% |
| Phosphorus max | 0.030% |
| Sulfur max | 0.030% |
| Silicon | 0.15-0.50% |
| Copper max | 0.35% |
| Nickel max | 0.25% |
| Chromium max | 0.25% |
| Molybdenum max | 0.08% |
ASTM A633 grade D carbon steel plate stock resources in China:
| Grade | Thickness (mm) | Width (mm) | Length (mm) |
| A633D | 126 | 2440 | 5250 |
| A633D | 90 | 1900 | 1150 |
| A633D | 64 | 2150 | 10200 |
| A633D | 58 | 3900 | 8920 |
| A633D | 40 | 3860 | 1410 |
| A633GrD | 58 | 2600 | 7800 |
| A633GrD | 50 | 2200 | 9000 |
| A633GrD | 45 | 1770 | 6600 |
| A633GrD | 38 | 2500 | 9800 |
| A633GrD | 25 | 2350 | 7650 |
| A633 grade D | 127 | 670 | 1800 |
| A633 grade D | 120 | 3030 | 5400 |
| A633 grade D | 114 | 790 | 4330 |
| A633 grade D | 80 | 3080 | 6090 |
| A633 grade D | 76 | 820 | 2500 |
| A633 grade D | 65 | 2970 | 6720 |
| A633 grade D | 28 | 3360 | 12420 |
| A633 grade D | 24 | 2920 | 9820 |
| Grade E | |
| Carbon max | 0.22% |
| Manganese | 1.15-1.50% |
| Phosphorus max | 0.030% |
| Sulfur max | 0.030% |
| Silicon | 0.15-0.50% |
| Vanadium | 0.04-0.11% |
| Nitrogen max | 0.03% |
Material Properties
The following material properties are ASTM specifications and will be confirmed on the Mill Test Report.
| Grade | Yield Point (ksi) | Tensile Strength (ksi) | Min. 8" Elongation % |
| A | 42 | 63-83 | 18 |
| C & D ≤2.5" thick | 50 | 70-90 | 18 |
| C & D >2.5" thick to 4" thick. | 46 | 65-85 | 18 |
| E ≤4" thick | 60 | 80-100 | 18 |
| E Over 4" thick to 6" thick. | 55 | 75-95 | 18 |
