High-Strength SA738/A738 Steel Plate for Pressure Vessels
SA738/A738 Steel Plates, high-strength alloy, for pressure vessels. Ensure durability, corrosion resistance for industrial applications.
High Tensile Strength: Exceptional strength for demanding pressure vessel applications.
Quenched and Tempered: Enhanced toughness and durability through advanced heat treatment.
Corrosion Resistance: Superior resistance to harsh environments, reducing maintenance costs.
Customizable Dimensions: Available in various sizes to meet specific industrial needs.
Wide Applications: Ideal for boilers, storage tanks, and oil/gas/chemical industries.
SA738/A738 Steel Plate Description
Our company, a leading SA738/A738 Steel Plate supplier, delivers high-strength, quenched, and tempered plates for pressure vessels. These plates offer superior durability and corrosion resistance, ensuring reliability in harsh conditions. They meet critical demands in oil, gas, and chemical industries, addressing needs for robust, long-lasting materials. Available in customizable thicknesses and sizes, they suit diverse project specifications. Ideal for manufacturers, exporters, and distributors seeking high-performance steel solutions for industrial applications.
ASME SA738 Chemical Composition
| ASME SA738 Chemical Composition | |||
| Element | Grade A (max) | Grade B (max) | Grade C (max) |
| Carbon (C) | 0.24 | 0.2 | 0.2 |
| Manganese (Mn) | |||
| Heat analysis, ≤2.5 in. [65 mm] | 1.5 | 0.90–1.50 | 1.5 |
| Heat analysis, >2.5 in. [65 mm] | 1.6 | 0.90–1.60 | 1.6 |
| Product analysis, ≤2.5 in. [65 mm] | 1.62 | 0.84–1.62 | 1.62 |
| Product analysis, >2.5 in. [65 mm] | 1.72 | 0.84–1.72 | 1.72 |
| Phosphorus (P) | 0.035 | 0.03 | 0.025 |
| Sulfur (S) | 0.035 | 0.03 | 0.025 |
| Silicon (Si) | |||
| Heat analysis | 0.15–0.50 | 0.15–0.55 | 0.15–0.50 |
| Product analysis | 0.13–0.55 | 0.13–0.60 | 0.13–0.55 |
| Copper (Cu) | |||
| Heat analysis | 0.35 | 0.35 | 0.35 |
| Product analysis | 0.38 | 0.38 | 0.38 |
| Nickel (Ni) | |||
| Heat analysis | 0.5 | 0.6 | 0.5 |
| Product analysis | 0.53 | 0.63 | 0.53 |
| Chromium (Cr) | |||
| Heat analysis | 0.25 | 0.3 | 0.25 |
| Product analysis | 0.29 | 0.34 | 0.29 |
| Molybdenum (Mo) | |||
| Heat analysis, ≤1.5 in. [40 mm] | 0.08 | 0.2 | 0.08 |
| Heat analysis, >1.5 in. [40 mm] | 0.08 | 0.3 | 0.08 |
| Product analysis, ≤1.5 in. [40 mm] | 0.09 | 0.21 | 0.09 |
| Product analysis, >1.5 in. [40 mm] | 0.09 | 0.33 | 0.09 |
| Vanadium (V) | |||
| Heat analysis | 0.07¹ | 0.07 | 0.05 |
| Product analysis | 0.08¹ | 0.08 | 0.05 |
| Columbium (Cb) | |||
| Heat analysis | 0.04¹ | 0.04² | c |
| Product analysis | 0.05¹ | 0.05² | c |
| Columbium + Vanadium | |||
| Heat analysis | 0.08¹ | 0.08² | c |
| Product analysis | 0.10¹ | 0.10² | c |
| ASME SA738/ASTM A738 Steel Plate Mechanical Properties | ||||
| Property | Thickness (t) | Grade A | Grade B | Grade C |
| Tensile Strength | t ≤ 2.5 in. (≤ 65 mm) | 75–95 ksi (515–655 MPa) | 85–102 ksi (585–705 MPa) | 80–100 ksi (550–690 MPa) |
| 2.5 in. < t ≤ 4 in. (65–100 mm) | 75–95 ksi (515–655 MPa) | 85–102 ksi (585–705 MPa) | 75–95 ksi (515–655 MPa) | |
| t > 4 in. (> 100 mm) | 75–95 ksi (515–655 MPa) | 85–102 ksi (585–705 MPa) | 70–90 ksi (485–620 MPa) | |
| Yield Strength (min) | t ≤ 2.5 in. (≤ 65 mm) | 45 ksi (310 MPa) | 60 ksi (415 MPa) | 60 ksi (415 MPa) |
| 2.5 in. < t ≤ 4 in. (65–100 mm) | 45 ksi (310 MPa) | 60 ksi (415 MPa) | 55 ksi (380 MPa) | |
| t > 4 in. (> 100 mm) | 45 ksi (310 MPa) | 60 ksi (415 MPa) | 46 ksi (315 MPa) | |
| Elongation in 2 in. [50 mm] (min %A) | t ≤ 4 in. (≤ 100 mm) | 0.2 | 0.2 | 0.22 |
| t > 4 in. (> 100 mm) | 0.2 | 0.2 | 0.2 | |
ASME SA738/ ASTM A738pressure vessel steel Application
As a premier SA738/A738 Steel Plate supplier and manufacturer, we specialize in high-strength, heat-treated plates for welded pressure vessels in moderate to low-temperature environments. Key applications include nuclear reactor containment vessels, ensuring safety under extreme pressures; petrochemical reactors and heat exchangers for efficient chemical processing; oil and gas storage tanks with superior toughness against corrosion; and power plant boilers for reliable energy production. These plates address unique demands for durability in harsh conditions, minimizing downtime for exporters and distributors in industrial sectors.
