A606 Atmospheric Corrosion Resistant Steel
High-Strength Low-Alloy (HSLA) Structural Steel
A606 atmospheric corrosion resistant steel is a high-strength low-alloy (HSLA) structural steel that meets a606 specifications. A606 specifications cover HSLA, hot-rolled and cold-rolled, sheet and strip, in cut lengths or coils that are intended for use in structural and miscellaneous purposes. A606 atmospheric corrosion resistant HSLA steel is desirable where savings in weight or added durability are important. It is the standard specification for steel, sheet and strip, high-strength, low-alloy, hot-rolled and cold-rolled, with enhanced atmospheric corrosion resistance.
These steels are supplied in two types:
Type 2 contains 0.02% minimum copper based on cast or heat analysis (0.18% minimum copper for product check).
Type 4 contains additional alloying elements and provides a level of corrosion resistance substantially better than that of carbon steels with or without copper addition. When properly exposed to the atmosphere, Type 4 steel can be used bare (unpainted) for many applications.
Chemical Requirements:
| Type | Type 2 & Type 4 |
|---|---|
| Carbon Cast/Heat Analysis |
.22 max |
| Product Check | .26 max |
| Manganese Cast/Heat Analysis |
1.25 max |
| Product Check | 1.30 max |
| Sulfur Cast/Heat Analysis |
.04 max |
| Product Check | .06 max |
Mechanical Requirements:
| Hot Rolled Steel | As Rolled | Annealed or Normalized |
|---|---|---|
| Yield Strength | 50,000psi | 45,000psi |
| Tensile Strength | 70,000psi | 65,000psi |
| Elongation in 2” test | 22% | 22% |
| Cold Rolled Steel | Cut length and coils |
| Yield Strength | 45,000psi |
| Tensile Strength | 65,000psi |
| Elongation in 2” test | 22% |
Note – Mechanical requirements are minimums unless there is a range listed.
For further information please feel free to contact a Leeco Steel representative.
