Kloeckner Metals routinely supplies A572, a high-strength, low-alloy structural steel plate, nationwide to its customers.
A572 plate is a high-strength, low-alloy structural steel that includes five grades—42, 50, 55, 60, and 65—according to their minimum specified yield strength. For applications requiring notch toughness, Kloeckner Metals also supplies A572 charpy tested.
A572 steel plate has good structural quality with an optimal combination of high strength, high notch toughness, good weldability, and high value. Due to its alloying elements, it can be a little more difficult to form and pre-testing of both welding and post-welding heat treatments is recommended.
As a structural steel plate, ASTM A572 grades are common in structural applications across a broad range of market segments.
A572 is often used in construction equipment, bridges, buildings, machinery, freight cars, truck parts, and transmission towers. Because of its versatility, it is considered a “workhorse” grade and shows up in a huge range of products.
A572 is an HSLA steel plate with fair machinability. It can be drilled, countersinked, counterbored, tapped, and milled with conventional equipment and carbide tools.
A572 steel plate is considered to have excellent weldability and can be weld by all conventional methods.
Heat treatment is not required for A572 steel plate. However, it is possible to require a higher level of strength by specifying quenched and tempered steel plates.
A572 steel plate has good structural quality with an optimal combination of high strength, high notch toughness, good weldability, and high value. Due to its alloying elements, it can be a little more difficult to form and pre-testing of both welding and post-welding heat treatments is recommended.
As a structural steel plate, ASTM A572 grades are common in structural applications across a broad range of market segments.
A572 is often used in construction equipment, bridges, buildings, machinery, freight cars, truck parts, and transmission towers. Because of its versatility, it is considered a “workhorse” grade and shows up in a huge range of products.
A572 is an HSLA steel plate with fair machinability. It can be drilled, countersinked, counterbored, tapped, and milled with conventional equipment and carbide tools.
A572 steel plate is considered to have excellent weldability and can be weld by all conventional methods.
Heat treatment is not required for A572 steel plate. However, it is possible to require a higher level of strength by specifying quenched and tempered steel plates.
| Grade | Type | Routinely Supplied Dimensions (Imperial) | ||
|---|---|---|---|---|
| Thickness | Width | Length | ||
| 42 | Discrete (Mill Rolled) | 4.5"+ | 72", 84", 96", 120" | Variable |
| 50 | Discrete (Mill Rolled) | 3/16" - <4.5" | 72", 84", 96", 120" | 120", 240", 480" |
| 50CV | Discrete (Mill Rolled) | 3/16" - <4.5" | 72", 84", 96", 120" | 120", 240", 480" |
| 50 | Hot Rolled (Strip Mill) | 3/16" - 1/2" | 48", 60", 72" | Any |
| 50 | Cut to Length | 3/16" - 1/2" | 84", 96" | Any |
| 50 | Coil | 3/16" - 1/2" | 48" - 96" | Any |
| 55 | Discrete (Mill Rolled) | 3/16" - <4.5" | 72", 84", 96", 120" | 240" - 480" |
| 55 | Hot Rolled (Strip Mill) | 3/16" - 1/2" | 48", 60", 72" | Any |
| 55 | Cut to Length | 3/16" - 1/2" | 84", 96" | Any |
| 55 | Coil | 3/16" - 1/2" | 84", 96" | Any |
| 60 | Discrete (Mill Rolled) | 3/16" - <4.5" | 72", 84", 96", 120" | 240" - 480" |
| 60 | Hot Rolled (Strip Mill) | 3/16" - 1/2" | 48", 60", 72" | Any |
| 60 | Cut to Length | 3/16" - 1/2" | 84", 96" | Any |
| 60 | Coil | 3/16" - 1/2" | 48" - 96" | Any |
| 65 | Discrete (Mill Rolled) | 3/16" - 2" | 72", 84", 96", 120" | 240" - 480" |
| 65 | Hot Rolled (Strip Mill) | 3/16" - 1/2" | 48", 60", 72" | Any |
| 65 | Cut to Length | 3/16" - 1/2" | 84", 96" | Any |
| 65 | Coil | 3/16" - 1/2" | 48" - 96" | Any |
| C | Mn | P | S | Si |
|---|---|---|---|---|
| 0.21% | 1.35% | 0.030% | 0.030% | 0.15-0.40% |
| C | Mn | P | S | Si |
|---|---|---|---|---|
| 0.23% | 1.35% | 0.030% | 0.030% | 0.15-0.40% |
| C | Mn | P | S | Si |
|---|---|---|---|---|
| 0.25% | 1.35% | 0.030% | 0.030% | 0.15-0.40% |
| C | Mn | P | S | Si |
|---|---|---|---|---|
| 0.26% | 1.35% | 0.030% | 0.030% | 0.40% |
| C | Mn | P | S | Si |
|---|---|---|---|---|
| 0.26% | 1.35% | 0.030% | 0.030% | 0.40% |
| Mechanical Properties | ||
|---|---|---|
| Metric | Imperial | |
| Tensile Strength, Ultimate | 400 - 550 MPa | 58,000 - 79,800 PSI |
| Tensile Strength, Yield | 250 MPa | 36,300 PSI |
| Elongation at Break (in 200 mm) | 20.0% | 20.0% |
| Elongation at Break (in 50 mm) | 23.0% | 23 .0% |
| Modulus of Elasticity | 200 GPa | 29,000 KSI |
| Bulk Modulus (typical for steel) | 140 GPa | 20,300 KSI |
| Poissons Ratio | 0.260 | 0.260 |
| Shear Modulus | 79.3 GPa | 11,500 KSI |
ANSWER:
ASTM 572 Grade 50 steel has an ultimate tensile strength of 450 MPa (metric) and 65,300 PSI (Imperial). It has a tensile yield strength of 345 MPa and 50,000 PSI.
ANSWER:
| Mechanical Properties | Metric | English |
| Hardness, Brinell | 135 | 135 |
| Hardness, Rockwell B | 74 | 74 |
| Tensile Strength, Ultimate | 450 MPa | 65300 psi |
| Tensile Strength, Yield | 345 MPa | 50000 psi |
| Elongation at Break (in 200 mm) | 18% | 18% |
| Elongation at Break (in 50 mm) | 21% | 21% |
| Bulk Modulus | 160 GPa | 23200 ksi |
| Shear Modulus | 80.0 GPa | 11600 ksi |
ANSWER:
ASTM 572 Grade 50 steel has an ultimate tensile strength of 450 MPa (metric) and 65,300 PSI (Imperial). It has a tensile yield strength of 345 MPa and 50,000 PSI.
ANSWER:
| Mechanical Properties | Metric | English |
| Hardness, Brinell | 135 | 135 |
| Hardness, Rockwell B | 74 | 74 |
| Tensile Strength, Ultimate | 450 MPa | 65300 psi |
| Tensile Strength, Yield | 345 MPa | 50000 psi |
| Elongation at Break (in 200 mm) | 18% | 18% |
| Elongation at Break (in 50 mm) | 21% | 21% |
| Bulk Modulus | 160 GPa | 23200 ksi |
| Shear Modulus | 80.0 GPa | 11600 ksi |
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