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SA387 GR.12 CL1 Alloy Pressure Vessel Steel Plate
SA387 Grade 12 Class 1 is a Chromium-Molybdenum alloy steel plate designed for high-temperature service in pressure vessels and boilers. It offers excellent strength, toughness, and resistance to hydrogen attack at elevated temperatures. The material is typically supplied in normalized and tempered condition, ensuring consistent mechanical properties and weldability.
ASTM: A387 Gr.12 Cl.1ASME: SA387 Gr.12 Cl.1GB:
MaterialASTM A387/A387M / ASME SA387/SA387M / ASTM A20/A20M
Thickness4mm - 200mm
Width1000mm - 3500mm
Length6000mm - 12000mm
MOQ1 Ton
Lead Time15-25 days
PortShanghai / Tianjin / Qingdao
Response within 24 hours
In Stock — Ready to Ship
| Material Grade | ASTM A387/A387M / ASME SA387/SA387M / ASTM A20/A20M | Standard | ASTM A387/A387M / ASME SA387/SA387M / ASTM A20/A20M |
| Thickness Range | 4mm - 200mm | Width Range | 1000mm - 3500mm |
| Length Range | 6000mm - 12000mm | MOQ | 1 Ton |
| Lead Time | 15-25 days | Port of Shipment | Shanghai / Tianjin / Qingdao |
| C | 0.04-0.17 | Si | 0.13-0.45 |
| Mn | 0.35-0.73 | P | ≤0.035 |
| S | ≤0.035 | Cr | 0.74-1.21 |
| Mo | 0.40-0.65 | Yield Strength (t ≤ 50mm) | ≥230 MPa |
| Tensile Strength | 380-550 MPa | Elongation (t ≤ 50mm) | ≥22% |
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