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ASTM A588/A588M Weather Resistant Steel Plate

ASTM A588/A588M Standard Specification for High-Strength Low-Alloy Structural Steel, up to 50 ksi [345 MPa] Minimum Yield Point, with Atmospheric Corrosion Resistance. ASTM A588/A588M main steel grade: ASTM A588/A588M A, B, C, K.

ASTM A588 / A588M steel ASTM A588 / A588M steel ASTM A588GRK,A588 Grade K weathering resistance steel plate Corten Steel A588 Grk Plate

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ASTM A588/A588M

A588 Weathering Steel is a high-strength, low-alloy steel with atmospheric corrosion resistance commonly used in bridges and buildings. The “A588” name comes from ASTM standards. This steel meets ASTM A588/A588M, forming a rust-like layer, reducing painting needs when exposed. It has strong tensile strength, corrosion resistance, and weldability, ideal for outdoor sculptures, bridges, and structures.

ASTM A588/A588M Standard Specification for High-Strength Low-Alloy Structural Steel, up to 50 ksi [345 MPa] Minimum Yield Point, with Atmospheric Corrosion Resistance.ASTM A588/A588M main steel grade: ASTM A588/A588M A, B, C, K.

Specification

Category	Details
Quality Standard	ASTM A588/A588M
Certifications	ASTM G101, ISO 9001, ISO 630, ISO 6892, BV, SGS, JIS G 3114
Thickness	6-100mm
Width	900-4800mm
Length	3000-25000mm
Weight	Depends on length and width
Tolerances	Thickness: ±0.3 to ±1.2 mm, Width: ±3 to ±10 mm, Length: ±5 to ±20 mm
Technology	Hot Rolling
Processing Service	Welding, Punching, Cutting, Bending, Decoiling
Shapes	Weathering Steel Plate, Weathering Steel Sheet
MOQ (Minimum Order Quantity)	5 tons (according to the actual tonnage)
Lead Time	Typically 7-20 days (The larger the ordered tonnage, the longer the delivery time)
Price Terms & Payment	Based on customer requirements, T/T, L/C
Ports	Qingdao, Lianyungang, Dalian
Export Countries	Southeast Asia, Central Asia, Europe, Russia, South America, Middle East, etc.
Shipping Method	Offers Sea, Air and Customized Shipping

Specification Parameters

Basic Information

ASTM A588/A588M Chemical Compositions

Element	Grade A (%)	Grade B (%)	Grade C (%)	Grade K (%)
Carbon, C	Max 0.19	Max 0.2	Max 0.15	Max 0.17
Silicon, Si	0.3 – 0.65	0.15 – 0.5	0.25 – 0.55	0.25 – 0.5
Manganese, Mn	0.8 – 1.25	0.75 – 1.35	0.8 – 1.3	0.5 – 1.2
Phosphorus, P	Max 0.03	Max 0.03	Max 0.04	Max 0.03
Sulfur, S	Max 0.03	Max 0.03	Max 0.03	Max 0.03
Chromium, Cr	0.4 – 0.65	0.4 – 0.7	0.3 – 0.65	0.4 – 0.7
Nickel, Ni	Max 0.4	Max 0.5	Max 0.4	Max 0.4
Copper, Cu	0.25 – 0.4	0.2 – 0.4	0.3 – 0.5	0.3 – 0.5
Vanadium, V	0.02 – 0.1	0.01 – 0.1	0.02 – 0.1	–
Molybdenum, Mo	–	–	–	Max 0.1
Niobium, Nb	–	–	–	0.005 – 0.05

ASTM A588/A588M Steel Mechanical Properties

Property	Grade A (Metric)	Grade A (Imperial)	Grade B (Metric)	Grade B (Imperial)	Grade C (Metric)	Grade C (Imperial)	Grade K (Metric)	Grade K (Imperial)
Tensile Strength	485 MPa	70 ksi	485 MPa	70 ksi	485 MPa	70 ksi	485 MPa	70 ksi
Yield Strength	345 MPa	50 ksi	345 MPa	50 ksi	345 MPa	50 ksi	345 MPa	50 ksi
Brinell Hardness	135 – 180 HBW	135 – 180 HBW	135 – 180 HBW	135–180 HBW	135 – 180 HBW	135 – 180 HBW	135 – 180 HBW	135 – 180 HBW
Rockwell Hardness	70 – 85 HRB	70 – 85 HRB	70 – 85 HRB	70 – 85 HRB	70 – 85 HRB	70 – 85 HRB	70 – 85 HRB	70 – 85 HRB
Vickers Hardness	140 – 190 HV	140 – 190 HV	140 – 190 HV	140 – 190 HV	140 – 190 HV	140 – 190 HV	140 – 190 HV	140 – 190 HV
Elongation	18%	18%	18%	18%	18%	18%	18%	18%
Elastic Modulus	200 GPa	29000 ksi	200 GPa	29000 ksi	200 GPa	29000 ksi	200 GPa	29000 ksi

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ASTM A588/A588M Weather Resistant Steel Plate

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ASTM A588/A588M Weather Resistant Steel Plate

ASTM A588/A588M

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ASTM A588/A588M Chemical Compositions

ASTM A588/A588M Steel Mechanical Properties

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