A871-65 is an HSLA structural steel plate with improved atmospheric corrosion resistance that’s also known as a weathering steel.
| Format | Grade | Sizes Routinely Stocked (Imperial units) | ||
|---|---|---|---|---|
| Thickness | Width | Length | ||
| Coil | 65 | 3/16" - 1/2" | 48", 60", 72", 84", 96" | Any |
| Cut to Length | 65 | 3/16" - 1/2" | 84", 96" | Any |
| Hot Rolled (Strip Mill) | 65 | 3/16" - 1/2" | 48", 60", 72" | Any |
| Discrete (Mill Rolled) | 65 | 3/16" - 3" | 72", 84", 96", 120" | 240" - 480" |
A871 weathering steel comes in 2 different grades including grades 60 and 65. To meet mechanical requirements, 871 steel plate can be provided in the as-rolled, normalized, or quenched and tempered conditions.
When properly designed, it can be used bare, without paint, for many applications. It has very good corrosion resistance comes at a higher price point than other steel plates. As a microalloyed steel, its fine grain structure contributes to high durability.
It is used in tubular structures and poles where the atmospheric corrosion resistance is a must. Some examples are:
This grade can be machined in the annealed condition, but will have better results when the condition is H1150M.
Yes, this grade can be welded by common fusion and resistance methods, but should not be joined by oxyacetulene welding.
It is heat-treatable.
When properly designed, it can be used bare, without paint, for many applications. It has very good corrosion resistance comes at a higher price point than other steel plates. As a microalloyed steel, its fine grain structure contributes to high durability.
It is used in tubular structures and poles where the atmospheric corrosion resistance is a must. Some examples are:
This grade can be machined in the annealed condition, but will have better results when the condition is H1150M.
Yes, this grade can be welded by common fusion and resistance methods, but should not be joined by oxyacetulene welding.
It is heat-treatable.
| C | Mn | P | S | Si | Ni | Cr | Mo | Cu | V | Nb |
|---|---|---|---|---|---|---|---|---|---|---|
| 0.17 - 0.20% | 0.5 - 1.35% | 0.03% | 0.03% | 0.15 - 0.65% | 0.4 - 0.5% | 0.4 - 0.7% | 0 - 0.1% | 0.20 - 0.50% | 0.01 - 0.1% | 0 - 0.05% |
| Mechanical Properties | ||
|---|---|---|
| Metric | Imperial | |
| Tensile Strength, Ultimate | 450 MPa | 65,000 PSI |
| Tensile Strength, Yield | 550 MPa | 80,000 PSI |
| Elongation at Break (in 200 mm) | 15% | 15% |
| Elongation at Break (in 50 mm) | 17% | 17% |
ANSWER:
A871 Grade 60 has an ultimate tensile strength of 75,000 PSI and a yield strength of 60,000 PSI.
ANSWER:
A871 Grade 60 has an ultimate tensile strength of 75,000 PSI and a yield strength of 60,000 PSI.
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