Products Description
ASTM A572 Gr.65 is a high strength low alloy steel (HSLA steel) developed for structural purposes where supreme yield strength is required, paired with solid ductility and formability. Alloyed with niobium, vanadium, and occasionally titanium, it maintains superior impact resistance.
Commonly utilized in A572 Grade 65 bridge steel plate for massive spans and A572 structural steel in skyscrapers, this grade excels in high-load and seismic conditions.
As a durable carbon steel plate, it's ideal for welded or bolted constructions in heavy equipment, cranes, and mining machinery.
Gnee's A572 Gr 65 steel plate adheres to strict ASTM requirements, ensuring consistent excellence for diverse worldwide projects, from load-bearing frameworks to rugged industrial setups.
Chemical Composition
|
Element |
Composition (%) |
|---|---|
|
Carbon (C) |
≤ 0.23-0.26 |
|
Manganese (Mn) |
≤ 1.35-1.65 |
|
Phosphorus (P) |
≤ 0.04 |
|
Sulfur (S) |
≤ 0.05 |
|
Silicon (Si) |
≤ 0.40 |
|
Vanadium (V) |
0.01-0.15 |
|
Columbium (Nb) |
0.005-0.05 |
|
Titanium (Ti) (optional) |
≤ 0.006-0.04 |
|
Copper (Cu) (optional) |
≥ 0.20 |
Mechanical Properties
|
Property |
Value |
|---|---|
|
Yield Strength (Min) |
450 MPa (65 ksi) |
|
Tensile Strength |
550 MPa (80 ksi) min |
|
Elongation (in 200mm) |
≥ 15% |
|
Elongation (in 50mm) |
≥ 17% |
|
Charpy Impact Toughness (at 0°C, optional) |
≥ 27 J |
Equivalent Grades
|
Standard |
Equivalent Grade |
|---|---|
|
EN 10025 |
S460Q / S460QL |
|
DIN |
- |
|
JIS |
SM570 |
|
GB |
Q420A / Q420B |
|
BS |
55C / 55EE |
Products Applications
In ASTM A572 Gr.65 vs A36 steel, Gr.65's yield (450 MPa vs 250 MPa) and alloy composition are key differentiators. A36 is a basic carbon steel for general use, lacking the niobium and vanadium in Gr.65 that enhance strength and corrosion resistance.
Gr.65 enables thinner designs, reducing weight in bridges or machinery, while A36 is cost-effective for low-stress applications. Gnee recommends ASTM A572 Gr.65 vs A36 steel for projects demanding superior durability and efficiency.
