Description
ASTM A514 Steel Plate
ASTM A514, usually referred to as T1 steel plate, is a quenched and tempered alloy steel plate having a yield strength of 100,000 psi (690 MPa). It’s designed for structural use and high-wear applications, offering excellent toughness, weldability, and impact-abrasion resistance, even at low temperatures. Chromium, nickel, and molybdenum are added to the steel to increase its strength and corrosion resistance.
Key Features:
- High yield strength: Up to 100 ksi (690 MPa)
- Excellent weldability
- Good formability
- Resistance to abrasion and impact
- Cost-effective weight-to-strength ratio
Chemical Composition
| Element |
Composition (%) |
| Carbon (C) |
0.12 – 0.21 |
| Manganese (Mn) |
0.70 – 1.00 |
| Phosphorus (P) |
≤ 0.025 |
| Sulfur (S) |
≤ 0.025 |
| Chromium (Cr) |
0.40 – 0.65 |
| Molybdenum (Mo) |
0.15 – 0.25 |
| Nickel (Ni) |
0.80 – 1.20 |
| Vanadium (V) |
0.03 – 0.10 |
Mechanical Properties
| Property |
Value |
| Yield Strength |
100 ksi (690 MPa) min |
| Tensile Strength |
110–130 ksi (760–895 MPa) |
| Elongation in 2” |
18% min |
| Brinell Hardness |
235–293 HB |
Weldability
A514 is weldable but requires careful handling due to its high strength and tendency to harden if cooled too quickly. Preheating (350-400°F), controlled interpass temperatures, and slow cooling are recommended to prevent cracking. Common welding methods include SMAW (E-11018 rods) or FCAW (e.g., E110T5-K4 with 75-85% Ar/15-25% CO2 shielding gas).
A514 Available Grades
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A514 Grade B
-
A514 Grade E
-
A514 Grade F
-
A514 Grade H
-
A514 Grade Q
-
A514 Grade S
A514 Available Sizes
| GRADE |
THICKNESS |
WIDTH |
LENGTH |
| Grade B |
3/16″ – 1 1/4″ |
48″ – 120″ |
Up to 480″ |
| Grade S |
3/16″ – 2 1/2″ |
48″ – 120″ |
Up to 480″ |
| Grade H |
3/16″ – 2″ |
48″ – 120″ |
Up to 480″ |
| Grade Q |
3/16″ – 8″ |
48″ – 120″ |
Up to 480″ |
| Grade E |
3/16″ – 6″ |
48″ – 120″ |
Up to 480″ |
| Grade F |
3/16″ – 2 1/2″ |
48″ – 120″ |
Up to 480″ |
| Grade A |
Inquire |
Inquire |
Inquire |
| Grade P |
Inquire |
Inquire |
Inquire |
Equivalent Standards
| Standard |
Equivalent Grade |
| EN |
S690QL (approx.) |
| JIS |
JFE-HITEN 780LE |
| ISO |
ISO 4952 690 |
Applications
- Heavy construction equipment
- Cranes and lifting equipment
- Structural components for buildings and bridges
- Mining and quarry machinery
- Offshore platforms
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