1018 steel material grade equivalent list

SAE-AISI 1018 steel is a low-carbon steel known for its excellent machinability, weldability, and formability, commonly used in precision components like shafts, pins, and fasteners. Identifying its equivalents in other international standards is essential for global sourcing and project compatibility. Below is a concise overview of 1018 steel’s equivalents,with insights from Gangsteel, a leading ASTM A 36 steel plate supplier.

Key Properties of 1018 Steel

• Chemical Composition: 0.15-0.20% carbon, 0.60-0.90% manganese, trace phosphorus and sulfur.
• Mechanical Properties: Yield strength ~370 MPa (53,700 psi, cold-rolled), tensile strength ~440 MPa (63,800 psi), elongation 15-25%.
• Production: Typically cold-rolled or cold-drawn for a smooth finish and tight tolerances.
• Applications: Precision parts, automotive components, and machinery.

International Equivalents of 1018 Steel

Chinese Equivalent (GB/T Standard)

The closest Chinese equivalent to 1018 steel is Q195 (GB/T 700), with Q235B as a secondary option:

• Q195:
  • Carbon Content: ≤0.15%.
  • Yield Strength: ~195 MPa; Tensile Strength: 315-430 MPa.
  • Use: Light structures, cold-formed parts. Its low carbon and good formability closely match 1018.
• Q235B:
  • Carbon Content: ≤0.20%.
  • Yield Strength: ~235 MPa; Tensile Strength: 370-500 MPa.
  • Use: Structural applications, similar to ASTM A36/A36M. Less precise than Q195 for 1018’s applications.

European Equivalent (EN Standard)

In Europe, S235JR (EN 10025) or DC01 (EN 10130, cold-rolled) are the closest matches:

• S235JR:
  • Carbon Content: ≤0.17%.
  • Yield Strength: ~235 MPa; Tensile Strength: 360-510 MPa.
  • Use: Structural engineering, less focused on machining.
• DC01:
  • Carbon Content: ≤0.12%.
  • Yield Strength: ~280 MPa; Tensile Strength: 270-410 MPa.
  • Use: Cold-rolled parts, ideal for 1018’s precision applications.

Japanese Equivalent (JIS Standard)

In Japan, SS400 (JIS G3101) or SPCC (JIS G3141, cold-rolled) are equivalents:

• SS400:
  • Carbon Content: ≤0.20%.
  • Yield Strength: 205-245 MPa; Tensile Strength: 400-510 MPa.
  • Use: General structural applications, less precise than 1018.
• SPCC:
  • Carbon Content: ≤0.15%.
  • Yield Strength: ~280 MPa; Tensile Strength: 270-410 MPa.
  • Use: Cold-rolled components, closely matching 1018’s properties.

Comparison Table

Choosing the Right Equivalent

• Precision Needs: For machining or cold-forming, choose Q195, DC01, or SPCC to match 1018’s properties.
• Structural Use: Q235B, S235JR, or SS400 are viable for less precise applications, similar to ASME SA 36 steel plate supplier offerings.
• Standards Compliance: Verify the grade meets project-specific standards (e.g., GB/T, EN, JIS).
• Availability: Q195/Q235B are common in China, S235JR/DC01 in Europe, and SS400/SPCC in Japan.

Why Gangsteel?

While Gangsteel specializes in structural grades like ASTM A36 and ASME SA36, we can guide you in sourcing 1018 or equivalents like Q195 or Q235B. Our expertise ensures compliance with global standards and tailored solutions for your project. Contact Gangsteel for high-quality steel plates and expert support.