1. What is A36 Steel
A 36 steel is easily machinable, welded, and formed, making it highly versatile.
Its low carbon content limits the effect of heat treatment.
lacks substantial corrosion resistance due to no nickel and chromium.
2. Supply Range of A36 Steel
Round Bar: 16-300mm diameter, standard length 6-9 meters.
Steel Plate: 14-200mm hot rolled available in stock.
Surface: black surface
3. A36 Steel Specifications and Equivalent Steel Grades
| A 36 Specification | Equivalent Steel Grades |
|---|---|
| ASTM A36 | S235JR, SS400, Q235, ST37-2, S235J2, Q235D |
4. A 36 Steel Chemical Composition
4. A 36 Steel Chemical Composition
| Element | A-36 Composition (%) |
|---|---|
| Carbon | 0.25 – 0.29 |
| Manganese | 1.03 |
| Silicon | 0.28 |
| Phosphorus | 0.04 |
| Sulfur | 0.05 |
| Copper | 0.20 |
| Iron | 98% |
5. A36 Material Properties
A36 steel's mechanical properties:
yield strength of 36,000 psi
ultimate tensile strengths ranging from 58,000 to 79,800 psi.
elongate to about 20% of its original length under tensile testing, providing excellent impact strength at room temperature.
density of 2.84 lb/in^3,
hardness of 67–83 Rockwell
machinability rating of 72%
6. Forging and Forming of A 36 Steel
A36 steel is typically hot rolled, which imparts strain on the steel, increasing dislocation density and resulting in work hardening. The hot rolling process also creates grain elongation, offering a rougher surface finish but at a lower cost compared to cold rolling.
7. Heat Treatment of A36 Sheet
The annealing of ASTM A36 material is performed at temperatures ranging from 1,550 to 1,600°F. This process decreases brittleness, reduces hardness, and affects the steel's microstructure by recrystallization. The specific cooling rate controls the growth of new grains, limiting internal stresses in the A36 steel.
8. Applications of A36 Plate and Round
A36 material is widely used in infrastructure, like bridges and buildings, because of its high strength, weldability, formability, and malleability. It also finds applications in the automotive, construction, heavy machinery, and oil & gas industries. It's popular in different industries because of the low price and versatile properties.
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