ASTM A516 Grade 70 / ASME SA516 Grade 70 – Specifications and Standards

ASTM A516-70 plate is a medium carbon alloy designed for use in pressure vessels and boilers. It contains manganese, phosphorus, sulfur and silicon at the highest levels allowed by the ASTM, to produce the strongest carbon steel plates specified by the ASTM. It is a high strength metal, is easy to fabricate and can be securely welded. A516-70 plate also has good corrosion resistance.

A common trade name for A516-70 plate is PVQ Plate. A516 plate is also available in grades 55, 60, and 65.

APPLICATIONS

A516-70 plate is used to fabricate low-to-medium pressure vessels, boilers and processing equipment.

The specifications and standards of ASTM A516 Grade 70 and ASME SA516 Grade 70 carbon steel plate are outlined in table 1.

Table 1. Equivalent Specifications and Standards of ASTM A516 Grade 70 / ASME SA516 Grade 70

Standard

Description

ASTM/ASME

A/SA516 – Grade 70

DIN Standard

British Standard

BS1501-224-490A/B

European Norm

EN10028 P355GH

ASTM A516 Grade 70 / ASME SA516 Grade 70 – Chemical Composition

The chemical composition of ASTM A516 Grade 70 and ASME SA516 Grade 70 carbon steel plate are listed in table 2.

Table 2. Typical Chemical Composition of ASTM A516 Grade 70 / ASME SA516 Grade 70

Composition

Percentage %

Composition

Percentage %

C

0.10/ 0.22

Cu

0.3

Si

0.6

Ni

0.3

Mn

1/ 1.7

Mo

0.08

P

0.03

Nb

0.01

S

0.03

Ti

0.03

Al

0.02

V

0.02

Cr

0.3

ASTM A516 Grade 70 / ASME SA516 Grade 70 – Mechanical Properties

The mechanical properties of ASTM A516 Grade 70 and ASME SA516 Grade 70 carbon steel plate are outlined in table 3.

Table 3. Typical Mechanical Values of ASTM A516 Grade 70 / ASME SA516 Grade 70

Properties

Value

Tensile Strength (N/mm2)

510/ 650

Yield stress/ min (N/mm2)

335