GNEE GROUP

What is A36 material?

ASTM A36 Steel Plate is one of the most common grades of steel used in structural applications. This mild carbon steel grade contains chemical alloys that give it properties such as machinability, ductility, and strength that are ideal for use in constructing a variety of structures.

ASTM A36 Steel Plate Yield/Tensile Strength

ASTM A36 Steel Plate Material Chemistry

What is A36 material equivalent to?

The ASTM A36 plate is equivalent to grades like ASTM A283C, JIS G3101 SS400, JIS G3106 SM400A, EN10025-2 S235JR, DIN17100 ST37-2, and FE360B.

What is the Chinese equivalent of ASTM A36?

Q235B: The Chinese Equivalent

The Chinese equivalent to ASTM A36 is Q235B, as outlined in the GB/T 700 standard. Q235B is a low-carbon steel widely used in China for similar structural applications. Here’s a closer look at its properties:

• Chemical Composition: Q235B contains up to 0.20% carbon, 0.35-0.80% manganese, and small amounts of silicon, phosphorus, and sulfur. Its composition is very close to A36, though A36 allows slightly higher carbon content.
• Mechanical Properties: Q235B offers a minimum yield strength of 235 MPa (approximately 34 ksi) and a tensile strength of 370-500 MPa. While the yield strength is slightly lower than A36, the tensile strength range overlaps significantly.
• Applications: Q235B is used in construction, welded structures, and general engineering, mirroring A36’s versatility in bridges, buildings, and machinery.

Like A36, Q235B is typically hot-rolled, making it suitable for structural applications where surface finish is less critical than strength and cost.