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ASTM A572 Gr.50 Columbium-Vanadium Structural Steel for used in general construction

Oct 20, 2025 Leave a message

Products Description

 

The ASTM A572 specification is the Standard Specification for High-Strength Low-Alloy Columbium-Vanadium Structural Steel for used in general construction and structural applications.

 

 

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ASTM A572 includes five grades with specified minimum yield strengths of 42, 50, 55, 60, and 65 ksi, respectively. For applications where notch toughness is important, consult Gnee for specific Charpy V-notch toughness requirements. ASTM A572 grades are used in a wide variety of structural applications in many market segments.

 

Specification of ASTM A572 Gr.50 Steel Plate

 

Dimension

Available Range

Thickness

6mm - 200mm

Width

1500mm - 3200mm

Length

Up to 18000mm

 

ASTM A572 Gr.50 Chemical Composition

 

Element

Composition (%)

Carbon (C)

≤ 0.23

Manganese (Mn)

≤ 1.35

Phosphorus (P)

≤ 0.04

Sulfur (S)

≤ 0.05

Silicon (Si)

≤ 0.40

Vanadium (V)

≤ 0.05-0.15

Columbium (Nb)

≤ 0.005-0.05

Copper (Cu) (optional)

≥ 0.20

 

ASTM A572 Gr.50 Mechanical Properties

 

Property

Value

Yield Strength (Min)

345 MPa (50 ksi)

Tensile Strength

450 MPa (65 ksi) min

Elongation (in 200mm)

≥ 18%

Elongation (in 50mm)

≥ 21%

Charpy Impact (at 0°C, optional)

≥ 27 J

 

Equivalent Grades of ASTM A572 Gr.50

 

Standard

Equivalent Grade

EN 10025

S355JR / S355J0

DIN

St52-3

JIS

SM490A / SM490YA

GB

Q345B / Q345D Q355B / Q355D

BS

50B / 50C

 

Applications of ASTM A572 Grade 50 Steel Plate

 

The adaptability of ASTM A572 Grade 50 steel plate spans multiple sectors thanks to its strength. In bridges, A572 Grade 50 bridge steel plate forms durable girders and supports for extended spans.

 

High-rises rely on it as A572 structural steel for earthquake-proof frames. It's key in construction machinery like bulldozers and rigs for its impact tolerance.

 

Other uses include power poles, railcars, and farm implements. As your structural steel plate supplier, Gnee Steel delivers A572 Gr.50 compliant with ASME, EN, JIS, and DIN for bridges, buildings, and beyond.

 

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