Home > News >

ASTM A516 Gr 60 vs Grade 70

ASTM A516 Gr 60 and Gr 70 are carbon steel plate specifications under ASTM A516/A516M, designed for pressure vessels operating at moderate and lower temperatures.

Both grades are normalized for enhanced toughness, but Gr 70 provides higher tensile strength and yield strength, making it suitable for more demanding pressure applications. As a leading Chinese manufacturer and exporter, Gangsteel produces high-quality ASTM A 516 GR 60 and ASTM A 516 GR 70 plates, ensuring compliance with ASTM standards for global projects in boilers and vessels.

 

Overview of ASTM A516 Gr 60 and Gr 70

ASTM A516 Gr 60 offers a tensile strength range of 60-80 ksi (415-550 MPa), suitable for moderate-pressure vessels with good weldability.

Gr 70, with 70-90 ksi (485-620 MPa), is preferred for higher loads and better impact resistance.

Both are low-carbon steels, but Gr 70's enhanced properties make it ideal for critical service.

Gangsteel's ASTM A 516 GR 60 and ASTM A 516 GR 70 plates are engineered for reliability, complementing our ASME equivalents like ASME SA 516 GR 60 and ASME SA 516 GR 70 for versatile needs.

The table below highlights key differences:

Property

A516 Gr 60

A516 Gr 70

Standard

ASTM A516/A516M

ASTM A516/A516M

Type

Normalized carbon steel

Normalized carbon steel

Yield Strength (min, ksi/MPa)

32 / 220

38 / 260

Tensile Strength (ksi/MPa)

60-80 / 415-550

70-90 / 485-620

Elongation (min, %)

21

17

Applications

Moderate-pressure vessels

High-pressure vessels

 

Chemical Composition Comparison

Both grades have similar compositions, with Gr 70 allowing slightly higher carbon for increased strength.

Typical values (in weight %, maximum unless specified):

Element

A516 Gr 60

A516 Gr 70

C (Carbon)

0.21 (≤1.5" thick)

0.28 (≤1.5" thick)

Mn (Manganese)

0.60-1.20

0.85-1.20

P (Phosphorus)

0.025

0.025

S (Sulfur)

0.025

0.025

Si (Silicon)

0.15-0.40

0.15-0.40

Gangsteel's ASTM A 516 GR 60 and ASTM A 516 GR 70 ensure precise control.

 

Mechanical Properties Comparison

Gr 70's higher tensile enhances load capacity.

Key values:

Property

A516 Gr 60

A516 Gr 70

Yield Strength (min, ksi/MPa)

32 / 220

38 / 260

Tensile Strength (ksi/MPa)

60-80 / 415-550

70-90 / 485-620

Elongation (min, % in 8")

21

17

Hardness (Brinell)

137-170

143-187

These properties make Gr 70 more robust for pressure service.

Gangsteel's plates, like asme sa 36 steel plate for structural ties, complement A516.

 

Applications and Interchangeability

A516 Gr 60 is for moderate-pressure boilers and tanks.

Gr 70 suits higher-pressure vessels and critical service.

They are not interchangeable where higher strength is essential.

Gangsteel's offerings, including sa 283 grade c steel plate for lower-strength needs, complement A516 for varied projects.

 

FAQ

  • What is the main difference between A516 Gr 60 and Gr 70?Gr 70 has higher tensile strength (70-90 ksi vs 60-80 ksi) for demanding vessels.
  • Is A516 Gr 70 normalized?Yes, both grades are normalized for toughness.
  • What is the yield strength of A516 Gr 70?Minimum 38 ksi (260 MPa), higher than Gr 60's 32 ksi.
  • Can A516 Gr 60 replace Gr 70?No, for high-pressure applications due to lower strength.
  • Where can I buy A516 Gr 60 or 70 plates?Gangsteel offers compliant plates; contact for ASTM A 516 GR 60 or ASTM A 516 GR 70.

 

Other Products