420j2 Stainless Steel Square Tube

420J2 stainless steel square tube is manufactured according to multiple international standards:

• American ASTM standard
• Japanese standard: SUS420J2
• Chinese standard: 30Cr13 (new), 3Cr13 (old)
• Digital code: S42030
• European standard: 1.4028

This variant of stainless steel square tube offers superior performance characteristics compared to 420J1, particularly in terms of hardness and corrosion resistance.

Heat Treatment Specifications

The heat treatment process significantly influences the properties of 420J2 stainless steel square tube:

Quenching Temperature Guidelines:

• Optimal range: 980-1050°C
• Recommended temperature: 1000°C
  • Provides balanced structure and hardness
  • Avoids coarse, brittle microstructure
  • Achieves optimal performance

Performance Results:

• After quenching: Higher hardness than 420J1
• Typical hardness range: HRC52-55
• Magnetic properties present
• Enhanced wear resistance

Applications and Usage

420J2 stainless steel square tube is ideal for:

• Applications requiring high hardness
• Environments needing corrosion resistance
• Cutting tool manufacturing
• Precision instrument components
• Industrial applications

Key Benefits:

• Excellent rust resistance
• Good machinability
• Superior polishing capabilities
• Balanced carbon content (0.16-0.25%)
• Cost-effective performance

Our technical team can provide detailed guidance on selecting the appropriate stainless steel square tube grade for your specific application requirements, whether it's 420J2 or other specialized grades.