Q345 S235 Steel H Beam

Q345 Steel is a type of low-alloy steel, that is used in the manufacturing of bridges, buildings, and other structures. It has a yield strength of 345 MPa and tensile strength of 470-660 MPa. S235 grade steel is a readily weldable low carbon manganese steel with good impact resistance (including in sub-zero temperatures). This material is commonly supplied in the untreated or normalised condition and is available in several variations (denoted by additional letters and/or digits), which offer slight modifications of chemical composition and mechanical properties.

Products Description

Q345 Yield Strength

A yield strength or yield point is the material property defined as the stress at which a material begins to deform plastically. Prior to the yield point the material will deform elastically and will return to its original shape when the applied stress is removed. Yield strength of Q345B is 345 Mega Pascals. Like most steels of its grade, it suffers elongation before it pulls apart, typically at 20-21 percent of its initial length.

Q345 Tensile strength

The tensile strength of a material is the maximum amount of tensile stress that it can take before failure, for example breaking. Steel tensile strength is expressed in units of force divided by cross sectional area; in the Metric system, this unit is known as the Pascal. One Pascal is a Newton per square meter. The tensile strength of Q345 steel is rated at 470 to 660 Mega Pascals.

Q345 Hardness

Brinell scale hardness characterizes the indentation hardness of materials through the scale of penetration of an indenter, loaded on a material test-piece. It is one of several definitions of hardness in materials science.

Chemical Composition (ladle analysis), %, ≤
Standard	Steel Grade (Steel number)	C	Si	Mn	P	S	N	Cu	Thickness (t) (mm)	Method of deoxidation
EN 10025-2: 2019	S235JR (1.0038)	0.17	–	1.40	0.035	0.035	0.012	0.55	≤40	Rimming steel not allowed
	S235JR (1.0038)	0.20	–	1.40	0.035	0.035	0.012	0.55	40<t ≤100
	S235J0 (1.0114)	0.17	–	1.40	0.030	0.030	0.012	0.55	≤100
	S235J2 (1.0117)	0.17	–	1.40	0.025	0.025	–	0.55	≤ 100	Fully killed

I-Beams	H-Beams
I-Beams are steel beams fabricated by milling or rolling steel in an I-shape. It is made of a single piece of metal or aluminum throughout the unit.	H-Beams are steel beams made of rolled steel in the shape of the alphabet "H." They are fabricated as built-up units. The flanges are welded to the web to form the H-section. H-beams are also called wide flange beams.

Product Details

Product Name	Q345 S235 steel h beam
Length	As your required
Standard	ASTM/ GB/ JIS/ EN ect.
Delivery Time	According to your quantity
Payment Terms	FOB/ CIF/ EXW/ DDP
Origin	China
Sample	Yes
Tolerance	±0.3
Packing	Packed with steel belts tightly, in bundle

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