ASTM A588

ASTM Standard Logo

Corrosion Resistant High-Strength Low-Alloy Structural Metal Steel to ASTM A 588/A 588M Standard

(Up to 50 KSI (345 MPa) Minimum Yield Point, with Atmospheric Corrosion Resistance)

Use:

This specification is intended primarily for use in welded bridges and buildings where savings in weight or added durability are important. The atmospheric corrosion resistance of this uncoated steel in most environments is substantially better than that of carbon structural metal steels with or without copper addition. When properly exposed to the atmosphere, this steel is suitable for many applications in bare condition without any coating.

A588 Corrosion Resistant Steel Chemical Properties

 

Grade A

Grade B

Grade C

Grade K

Carbon, max

0.19

0.20

0.15

0.17

Manganese, max

0.80-1.25

0.75-1.35

0.80-1.35

0.50-1.20

Phosphorus, max

0.04

0.04

0.04

0.04

Sulphur, max

0.05

0.05

0.05

0.05

Silicon

0.30-0.65

0.15-0.50

0.15-0.40

0.25-0.50

Nickel, max

0.40

0.50

0.25-0.50

0.40

Chromium

0.40-065

0.40-0.70

0.30-0.50

0.40-0.70

Molybdenum, max

...

...

...

0.10

Copper

0.25-0.40

0.20-0.40

0.20-0.50

0.30-0.50

Vanadium

0.02-0.10

0.01-0.10

0.01-0.10

...

Columbium

...

...

...

0.005-0.05


* Note: For each reduction of 0.01% below the specified carbon maximum, an increase of 0.06% manganese above the specified maximum will be permitted, up to the maximum of 1.35%.

A588 Corrosion Resistant Steel Mechanical Properties

 

For Thicknesses 4 in. and under

For Thicknesses Over 4 in. to 5 in. incl

or Thicknesses Over 5 in. to 8 in. incl

Tensile Strength:

70,000 psi

[485 MPa]

67,000 psi

[460 MPa]

63,000 psi

[435 MPa]

Min. Yield Point:

50,000psi

[345 MPa]

46,000psi

[315 MPa]

42,000psi

[290 MPa]

Elongation in 8":

18% min

...

...

Elongation in 2":

21% min

21% min

21% min

We can supply:

Thickness  from 6mm to 100mm (although thicker plates might be manufactured under special order)

Width: from 1,500mm to 4,100mm

Length: from 6,000mm to 20,000mm


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