ASTM SA-36
Grade Introduction:
ASTM SA-36 is the most commonly used mild and hot-rolled steel. It has excellent welding properties and is suitable for grinding, punching, tapping, drilling, and machining processes. The yield strength of ASTM SA36 is less than that of cold roll C1018, thus enabling ASTM SA36 to bend more readily than C1018. Normally, larger diameters in ASTM SA36 are not produced since C1018 hot roll rounds are used.
Grade Application
ASTM SA36 steel has the following applications:
- It is used in bolted, riveted or welded construction of bridges, buildings and oil rigs.
- It is used in forming tanks, bins, bearing plates, fixtures, rings, templates, jigs, sprockets, cams, gears, base plates, forgings, ornamental works, stakes, brackets, automotive and agricultural equipment, frames, machinery parts.
- It is used for various parts obtained by flame cutting such as in parking garages, walkways, boat landing ramps and trenches.
Equivalent Grades
Standard – IS 2062 GR E250 , E350 , E410 AND E450 A / B / BO / BR, A36, etc
Our Supply Range
We supply to automotive ancillaries and OEM customers. The products we manufacture are used as input for manufacturing of automotive and general engineering components. These components are further assembled into systems fitted in automobiles and other engineering applications.
| Product Type | Size Range |
|---|---|
| Forged Round Bars | 140mm Dia to 850mm |
| Rolled Round Bars | 16mm Dia and above |
| Forged Flat Bars | Thickness: 32mm to 510mm, Width: 65mm to 1050mm |
| Rolled Flat Bars | Thickness: 6mm to 110mm, Width: 25mm to 510mm |
Chemical Composition
The following table shows the chemical composition of ASTM SA-36 steel:
| Element | C | Cu | Fe | Mn | P | Si | S |
| Content (%) | 0.25-0.29 | 0.20 | 98.0 | 1.03 | 0.040 | 0.280 | 0.050 |
Hardness
119 – 159
Tempering
A36 is low carbon steel, it is not suited for heat treatment. So can’t harden. If need hardening, heat to 880-910°C, then quenching in water and temper.
Thermal Properties
Thermal Conductivity, W/m-K – 50 – 42
Thermal Expansion, µm/m-K – 11 to 13
Stress Reliving
Stress relieving at 677°C – 927°C(1250°F-1700°F)
Normalizing
Normalizing at 899°C – 954°C (1650°F-1750°F)
Density
| Density | 7.85 g/cm3 | 0.284 lb/in3 |
Machinability
The machinability rate of ASTM SA36 is estimated to be 72%, and the average surface cutting feed of ASTM SA36 is 120 ft/min. Machining of ASTM SA36 steel is not as easy as that of AISI 1018 steel.
Welding
ASTM SA36 steel is easy to weld using any type of welding method, and the welds and joints so formed are of excellent quality.
Mechanical Properties
| Mechanical Properties | Metric | Imperial |
| Tensile Strength, Ultimate | 400 – 550 MPa | 58000 – 79800 psi |
| Tensile Strength, Yield | 250 MPa | 36300 psi |
| Elongation at Break (in 200 mm) | 20.0 % | 20.0 % |
| Elongation at Break (in 50 mm) | 23.0 % | 23.0 % |
| Modulus of Elasticity | 200 GPa | 29000 ksi |
| Bulk Modulus (typical for steel) | 140 GPa | 20300 ksi |
| Poissons Ratio | 0.260 | 0.260 |
| Shear Modulus | 79.3 GPa | 11500 ksi |
Hardening
Hardening at 788°C – 816°C(1450°F-1500°F)
Physical Properties
| Physical Properties | Metric | Imperial |
| Density | 7.85 g/cm3 | 0.284 lb/in3 |
Forging Properties
Preheat slowly, then increase the temperature more rapidly to forging temperature. Then cool slowly
Annealing
Annealing at 843°C – 871°C(1550°F-1600°F)
Supply Cities
Ambattur, Bangalore, Chennai, Coimbatore, Dindigul, Guindy, Madurai, Nellore, Hyderabad, Tirupur, Tuticorin, Madurai, Andhra Pradesh, Karnataka, Puducherry, Kerala, Kanyakumari, Telangana, Salem, Thanjavur, Trichy, Erode, Vellore, Karur, Nagercoil, Kanchipuram, Karaikudi, Pudukottai, Nagapattinam.
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Addition to other grades
MS, EN1A, EN3B, EN8, EN8D, EN9, EN19, EN24, EN31, EN32B, EN36C, EN41B, EN43B, EN47, EN353, IS2062, 42Crmo4, HCHCR, D2, D3, H-11, H-13, CW-1, OHNS, M2, M35, M42, DIN1.2714, P20, P20+S, P20+Ni, SCM420, ASTMSA-36, ASTMSA-105, SAE1018, SAE4140, SAE8620, 16MNCR5, 20MNCR5, C20, C45, C50, C60, CK45, 20C8, 40C8, 45C8, 55C8, C55MN75, SAE52100, S40C, S355J2G3.
