Q235B S235JR SS400 Hot Rolled Carbon Steel Plate

Product Name	Q235B S235JR SS400 Hot Rolled Carbon Steel Plate
Standard	GB 700-88, ASTM A36, EN 10025, JIS G3101
Thickness	From a few millimeters to several centimeters, customized
Width / Length	Customized per requirement
Yield Strength	Min. 235 MPa
Tensile Strength	375-500 MPa
Application	Construction, bridges, roads, machinery, pipelines and tanks
Trade Terms	FOB, CFR, CIF, EXW, FCA
Payment Terms	T/T, L/C at sight (others can be negotiated)

Q235B S235JR SS400 Hot Rolled Carbon Steel Plate Description

Q235B is a Chinese standard carbon steel that is widely used in construction, manufacturing, and general engineering applications. It is one of the most commonly used types of carbon steel in China. The "Q" stands for "Qu" (yield), and "235" indicates the minimum yield strength of the material in MPa (235 MPa). The "B" refers to a grade of steel that is specifically for structures requiring good weldability and formability.

Key Properties of Q235B Carbon Steel Plate

Yield Strength: The minimum yield strength of Q235B is 235 MPa.
Tensile Strength: Typically, Q235B has a tensile strength between 375-500 MPa.
Good Weldability: Due to its relatively low carbon content, Q235B can be easily welded using common welding techniques.
Good Formability: This steel grade can be easily shaped, bent, or formed into different shapes and sizes.

Chemical Composition

Element	Content
Carbon (C)	≤ 0.22%
Silicon (Si)	≤ 0.30%
Manganese (Mn)	0.30-0.70%
Phosphorus (P)	≤ 0.045%
Sulfur (S)	≤ 0.045%
Iron (Fe)	The remainder

International Standard Equivalents

Standard	Grade	Remark
ASTM A36 (American)	A36	Yield strength usually 250 MPa, better ductility and toughness
EN 10025 (European)	S235JR	Yield strength about 235 MPa
JIS G3101 (Japanese)	SS400	Yield strength 245 MPa, overall performance close

Common Applications

Construction: Used for building structural components, such as beams, columns, and frames.
Bridges and Roads: In the construction of bridges, roads, and railway tracks.
General Engineering: Manufacturing of general-purpose machinery and parts, such as bolts, fasteners, and frames.
Pipelines and Tanks: For fabricating pipelines and storage tanks that don't require high strength.

Advantages

Cost-effective: Q235B steel is economical compared to higher-grade steels, making it ideal for large-scale projects. Ease of Processing: It is easy to cut, weld, and shape. Versatility: Due to its relatively low carbon content, it is versatile for various applications where moderate strength and formability are required.

In summary, Q235B has great similarities with ASTM A36, S235JR and JIS SS400 in mechanical properties and application areas, and can be substituted for each other.

Key Features

Reliable strength: Minimum yield strength of 235 MPa with excellent tensile properties for structural use.
Good weldability: Low carbon equivalent makes Q235B easy to weld with all common methods.
Excellent formability: Can be cut, bent, drilled, punched and machined with ease.
High toughness: Good impact resistance even at low temperatures, suitable for outdoor structures.
Wide availability: One of the most commonly stocked carbon steel grades with fast delivery.

Applications

Q235B / S235JR / SS400 steel plates are used for bridges, buildings, steel structures, storage tanks, pressure vessels, machinery frames, shipbuilding, vehicle parts and general engineering fabrication.

Available Sizes

Thickness	2mm – 200mm
Width	1000mm – 3000mm
Length	2000mm – 12000mm
Grade	Q235B / Q235C / Q235D / S235JR / S235JO / SS400 / A36
Standard	GB/T 3274, EN 10025-2, ASTM A36, JIS G3101

Quality & Packaging

Chemical composition, tensile and impact tests are supplied with the mill certificate; third-party inspection available. Packaging: steel pallets with corner protectors, plastic film and kraft paper wrapping, seaworthy export packing.