ASTM A285 Grade B is a carbon‑steel pressure vessel plate designed for low‑to‑intermediate temperature service where moderate strength and dependable forming properties are required. Compared with Grade A, A285 Grade B provides higher tensile strength while maintaining good ductility and stable weldability, making it suitable for welded tanks, low‑pressure vessels, and general industrial containers. Its balanced mechanical behavior supports reliable fabrication during cutting, bending, and welding operations.
Chemical Composition

C	Mn	P	S
≤0.17	≤0.90	≤0.035	≤ 0.035

 
Mechanical Properties

Property	Yield Strength	Tensile Strength	Elongation
Requirement	≥ 185 MPa	415-550MPa	≥ 25%

Dimensions

Thickness	3–150 mm
Width	1220–4200 mm
Length	5000–18000 mm
Supports custom cutting and shaping.

 
 

Stock & Processing

• Regular stock of A285 Grade B plates

• Customized sizes for project requirements

• Cutting, drilling, welding, bending, machining

• Fast delivery and global supply capability

Applications

• Low‑pressure storage tanks

• Welded industrial containers

• Low‑to‑intermediate temperature pressure vessels

• Utility tanks and non‑critical pressure components

• Fabricated structures requiring moderate strength and good ductility