What is the Allowable Stress for SA516 GR70?

The allowable stress for SA516 GR70 is approximately 138 MPa (20 ksi) at room temperature, per ASME Section VIII, depending on temperature and design.Gangsteel’s ASME SA 516 GR 70 plates ensure compliance for pressure vessel applications. This article explains allowable stress and its significance.

Understanding Allowable Stress

Allowable stress is the maximum stress a material can withstand safely, calculated as a fraction of tensile/yield strength with safety factors. For SA516 GR70, ASME Section VIII provides values based on temperature:

Factors Affecting Allowable Stress

• Temperature: Higher temperatures reduce stress limits.
• Design Code: ASME Section VIII vs. API 650.
• Plate Thickness: Thicker plates may have adjusted values.

Applications

SA516 GR70’s stress limits support:

• Pressure Vessels: Up to 500 bar.
• Boilers: High-pressure systems.

Gangsteel’s Quality

Gangsteel ensures SA516 GR70 plates meet ASME stress requirements with rigorous testing.

Conclusion

The allowable stress for SA516 GR70 is 138 MPa at room temperature, ensuring safe pressure vessel performance. Gangsteel’s ASME SA 516 GR 70 delivers reliable solutions.

Keywords: SA516 GR70 allowable stress, ASME SA 516, pressure vessel design, carbon steel stress