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Leeco® Steel stocks the following standard sizes, but other sizes may be available for special orders.
THICKNESS | WIDTH | LENGTH | |
Grade 60 | 3/16" – 1 1/4" | 48" – 120" | Up to 650" |
Grade 65 | 3/16" – 1 1/4" | 48" – 120" | Up to 650" |
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 % |
60 | 60 | 75 | 16 |
65 | 65 | 80 | 15 |
The following composition properties are ASTM specifications for the A871 specification. Grades 60 and 65 can be produced with three types of chemical compositions.
Type I | |
Carbon | 0.19% max |
Manganese | 0.80-1.35% |
Phosphorus | 0.030% max |
Sulfur | 0.030% max |
Silicon | 0.30-0.65% |
Nickel | 0.40% max |
Chromium | 0.40-0.70% |
Copper | 0.25-0.40% |
Vanadium | 0.02-0.10% |
Type II | |
Carbon | 0.20% max |
Manganese | 0.75-1.35% |
Phosphorus | 0.030% max |
Sulfur | 0.030% max |
Silicon | 0.15-0.50% |
Nickel | 0.50% max |
Chromium | 0.40-0.70% |
Copper | 0.20-0.40% |
Vanadium | 0.01-0.10% |
Type IV | |
Carbon | 0.17% max |
Manganese | 0.50-1.20% |
Phosphorus | 0.030% max |
Sulfur | 0.030% max |
Silicon | 0.25-0.50% |
Nickel | 0.40% max |
Chromium | 0.40-0.70% |
Molybdenum | 0.10% max |
Copper | 0.30-0.50% |
Columbium | 0.005-0.05% |