ASTM A576 Grade 1018 Introduce
ASTM A576 Grade 1018 is a special-grade steel that has unique mechanical properties, making it a popular and cost-effective choice for many engineering and construction projects. The steel contains a low-carbon content and is corrosion-resistant, making it highly durable. The steel also has a tensile strength of 170,000 psi ETF, a Rockwell hardness of 160-190, and an impact strength of 20 foot-pounds. These mechanical properties make ASTM A576 Grade 1018 an ideal material for high-strength applications needing a strong and durable material.
Smelting temperature:1733°C - 1423°C
Application:Super hot rolled carbon steel rod
ASTM A576 Grade 1018 Material Chemical Composition
The chemical composition of the ASTM A576 Grade 1018 steel are as follows:
| Element | Min | Max |
|---|---|---|
| PhOsphorus (P) | - | 0.0400 |
| Sulfur (S) | - | 0.0500 |
| Manganese (Mn) | 0.7000 | 1.0000 |
| Carbon (C) | 0.1500 | 0.2000 |
| Silicon (Si) | - | 0.1000 |
| Copper (Cu) | 0.2000 | - |
| Boron (B) | 0.0005 | 0.0030 |
ASTM A576 Grade 1018 Material Mechanical Properties
The mechanical properties of the ASTM A576 Grade 1018 steel are as follows:
| YieldRp0.2 | ≤ 949 (MPa) |
| TeileRm | ≤ 576 (MPa) |
| ImpactKV/Ku | 21(J) |
| ElongationA | 33% |
| Reduction in cross section on fractureZ | 12% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 123 |
ASTM A576 Grade 1018 Material Thermal Properties
The thermal performance parameters of the ASTM A576 Grade 1018 steel are as follows:
| Temperature (°C) | 24 | 737 | 313 |
| Modulus of elasticity (GPa) | - | 762 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 42 |
| Thermal conductivity (W/m·°C) | - | 14.3 | 23.2 |
| Specific thermal capacity (J/kg·°C) | - | 122 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.32 | - | - |
| Deity (kg/dm³) | - | - | 224 |
| Poisson’s coefficient, ν | - | - | 342 |
ASTM A576 Grade 1018 Material Machining Technology
Machining ASTM A576 Grade 1018 steel requires special attention and consideration due to its hardenability and wide range of alloying elements. When machining ASTM A576 Grade 1018 steel, it is important to ensure that proper allowances are made for the initial cutting tool (e.g. drill bit) and the speed of the procedure.