High Quality Steel Plate ASTM A302 Gr.A Gr.B Gr.C Gr.D Pressure Vessel and Boiler Steel Plate
Pressure Vessel And Boiler Steel Plate
Thickness:10mm-750mm
Custom Size,Cut to Length
- Overview
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Product Induction
ASTM A302 steel plate is a premium material specifically engineered for high-temperature and high-pressure environments, commonly used in equipment such as boilers and pressure vessels. Its exceptional heat resistance and pressure tolerance ensure stable performance under extreme conditions, guaranteeing safe equipment operation. The plate undergoes precise heat treatment and surface finishing, enhancing both flatness and surface quality while improving machinability and weldability. This makes it ideal for manufacturing complex-shaped and sized components.
We offer ASTM A302 steel plates in multiple specifications and thicknesses, with custom processing available to meet specific client requirements, ensuring products fully comply with customer standards and specifications. Our products undergo rigorous quality control and testing to guarantee consistent quality and reliability, capable of meeting diverse engineering project demands.
For further information on ASTM A302 steel plates and custom services, please feel free to contact our professional team at any time. We are committed to providing you with high-quality products and services.
Specification
ASTM A302 Gr.A Gr.B Gr.C Gr.D Chemical Composition
| Grade | C Max | Si | Mn | P | S | Mo | Ni |
| A302 Gr.A | 0.25 | 0.13-0.45 | 0.87-1.41 | 0.035 | 0.35 | 0.41-0.64 | |
| A302 Gr.B | 0.25 | 0.13-0.45 | 1.07-1.62 | 0.035 | 0.35 | 0.41-0.64 | |
| A302 Gr.C | 0.25 | 0.13-0.45 | 1.07-1.62 | 0.025 | 0.25 | 0.41-0.64 | 0.67-1.03 |
| A302 Gr.D | 0.25 | 0.13-0.45 | 1.07-1.62 | 0.035 | 0.35 | 0.41-0.64 | 0.67-1.03 |
ASTM A302 Gr.A Gr.B Gr.C Gr.D Mechanical Properties
| Grade | tensile strength(MPa) | yield strength(MPa) | Elongation% |
| A302 Gr.A | 515-655 | 310 | 15 |
| A302 Gr.B | 550-690 | 345 | 15 |
| A302 Gr.C | 550-690 | 345 | 17 |
| A302 Gr.D | 550-690 | 345 | 17 |
Pressure Vessel And Boiler Steel Plate Information
| Product Name | Pressure Vessel and Boiler Steel Plate |
| Standard | A302,Other materials can be customized |
| Thickness | 10mm-750mm |
| Width | 1500mm-3700mm |
| Length | 3000mm-18000mm,the special sizes over this dimension can be produced by customization |
| Delivery Condition | when assuring the steel plate technical property, the steel plate can be delivered at hot rolled, controlled rolled, normalized, annealled, tempered, normalized and tempered, Q+T these delivery conditions. |
Four-level Classification and Types
| Grade | Type | Feature | Toughness | Weldability |
| A302 Gr.A | Mn-Mo | Lowest strength, basic type | Standard | Good |
| A302 Gr.B | Mn-Mo | Medium intensity, most commonly used | Standard | Good |
| A302 Gr.C | Mn-Mo-Ni | Containing nickel, with better toughness | Good | Excellent |
| A302 Gr.D | Mn-Mo-Ni | Higher nickel content, optimal toughness | Excellent | Excellent |
Packing
20 feet container:Width under 2300mm, length under 6000mm
40 feet container:Width under 2300mm, length under 12000mm
By bulk vessel:Freight charge is low by bulk cargo, and large heavy sizes can not beloaded into containers can shipping by bulk cargo

FAQ
Q: How to choose between A302 and A387 steel plates?
A: A302 is for general pressure vessels, featuring medium-temperature resistance, low cost, and weldability; A387 offers high-temperature resistance, hydrogen resistance, and high strength, suitable for hydrogenation reactors and boilers.
Q: What equipment is A302 primarily used for? What are its typical application scenarios?
A: A302 is a classic material for medium-temperature pressure vessels, with typical applications in petrochemical, coal chemical, natural gas, power generation, and marine industries.
Q: Are there any special requirements for transportation and packaging?
A: Thin plates (<20mm) are bundled with steel strapping and placed on wooden pallets; medium-thick plates (20-80mm) are shipped unpackaged or with minimal packaging; thick plates (80-150mm) require specialized racks with reinforced supports.
Q: How can I get your quotation as soon as possible?
A:Please contact:
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