ASTM A1086 30T820 Introduce
ASTM A1086 30T820 is a high-strength, low-alloy, hot-rolled structural steel used in a wide range of applications. This strong and durable steel is comprised of a series of alloying elements and is produced through a quenching and tempering process. ASTM A1086 30T820 is often used in construction, bridge building, and heavy machinery manufacturing.
Smelting temperature:1357°C - 1837°C
Application:Standard Specification for Thin-Gauge Non-Oriented Electrical Steel Fully Processed Types
ASTM A1086 30T820 Material Mechanical Properties
ASTM A1086 30T820 steel is intended for use in structural steelwork in structural and engineering applications. Its tensile strength ranges from 70 to 90ksi and its yield strength is approximately 45ksi. ASTM A1086 30T820 elongation at break ratings range from 18 – 32%, and its hardness is between 180 to 320 HBW. Its shear strength is estimated to be 53-57ksi, and its fatigue strength is 120% of its ultimate tensile strength. Its Charpy impact values are determined based on heat treatment, ranging from 10-30 ft-lbs.
The mechanical properties of the ASTM A1086 30T820 steel are as follows:
| YieldRp0.2 | ≤ 375 (MPa) |
| TeileRm | ≤ 537 (MPa) |
| ImpactKV/Ku | 23(J) |
| ElongationA | 13% |
| Reduction in cross section on fractureZ | 32% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 232 |
ASTM A1086 30T820 Material Thermal Properties
The thermal performance parameters of the ASTM A1086 30T820 steel are as follows:
| Temperature (°C) | 31 | 286 | 326 |
| Modulus of elasticity (GPa) | - | 288 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 43 |
| Thermal conductivity (W/m·°C) | - | 23.3 | 34.2 |
| Specific thermal capacity (J/kg·°C) | - | 133 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.44 | - | - |
| Deity (kg/dm³) | - | - | 224 |
| Poisson’s coefficient, ν | - | - | 143 |
ASTM A1086 30T820 Material Machining Technology
The mechanical properties of ASTM A1086 30T820 are quite appealing and make it an advantageous material to use in applications that require strength and absorb an impact emitted from external forces. It is widely valued for its superior strength to weight ratio and high yield and tensile strength values. It also features good toughness, ductility, and weldability, making it suitable for a wide range of applications.