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.

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.


