ASTM A709/A709M Grade 36 Introduce
For thicknesses over 3.5" (89mm), it is available in the normalized condition, where it meets the requirements for enhanced toughness. When exposed to normal environmental conditions, the notch toughness of the normalized material will exceed those of the material in the as-rolled condition.
Smelting temperature:1568°C - 1529°C
Application:Structural steel for bridge
ASTM A709/A709M Grade 36 Material Chemical Composition
The chemical composition of the ASTM A709/A709M Grade 36 steel are as follows:
| Element | Min | Max |
|---|---|---|
| Carbon (C) | - | 0.2600 |
| Manganese (Mn) | 0.8500 | 1.3500 |
| PhOsphorus (P) | - | 0.0400 |
| Sulfur (S) | - | 0.0500 |
| Silicon (Si) | - | 0.4000 |
| Copper (Cu) | 0.2000 | - |
| Silicon (Si) | - | 0.4000 |
| Manganese (Mn) | 0.8500 | 1.3500 |
| Copper (Cu) | 0.2000 | - |
ASTM A709/A709M Grade 36 Material Mechanical Properties
ASTM A709/A709M Grade 36 steel is a highly engineered, low-alloy structural steel commonly used in modern engineering applications due to its exceptional combination of mechanical properties. This includes a wide range of tensile strengths, yield strengths, elasticities, and hardness levels, allowing it to withstand heavy loads and wear without losing its shape or strength. Each grade of ASTM A709/A709M Grade 36 steel is carefully engineered to provide the best combination of mechanical properties for a particular engineering application, making it an ideal choice for creating structurally sound and durable structures.
The mechanical properties of the ASTM A709/A709M Grade 36 steel are as follows:
| YieldRp0.2 | ≤ 495 (MPa) |
| TeileRm | ≤ 881 (MPa) |
| ImpactKV/Ku | 42(J) |
| ElongationA | 21% |
| Reduction in cross section on fractureZ | 31% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 113 |
ASTM A709/A709M Grade 36 Material Thermal Properties
The thermal performance parameters of the ASTM A709/A709M Grade 36 steel are as follows:
| Temperature (°C) | 32 | 161 | 799 |
| Modulus of elasticity (GPa) | - | 658 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 43 |
| Thermal conductivity (W/m·°C) | - | 34.3 | 43.2 |
| Specific thermal capacity (J/kg·°C) | - | 213 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.23 | - | - |
| Deity (kg/dm³) | - | - | 212 |
| Poisson’s coefficient, ν | - | - | 444 |