Q345 Q355 Angle Steel

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. Q355 can be replaced with equivalent materials, including A572 Grade 50 USA ASTM, Q355 China GB/T, and SPFC 590 Vietnam/Japanese JIS.

Products Description

Q345 steel Chemical Composition

Chemical Composition Content (≤%)
Steel Grade	Quality Grade	C	Si	Mn	P	S	Cr	Ni	Mo	Cu	Ti	N	Nb	V	B	Als, ≥
Q345	Q345A	0.20	0.50	1.70	0.035	0.035	0.30	0.50	0.10	0.30	0.20	0.012	0.07	0.15	–	–
	Q345B				0.035	0.035
	Q345C				0.030	0.030										0.015

Q355 steel Chemical Composition

Steel Grade	Quality Grade	C % (≤)	Si % (≤)	Mn (≤)	P (≤)	S (≤)	Cr (≤)	Ni (≤)	Cu (≤)	N (≤)
Q355	Q355B	0.24	0.55	1.6	0.035	0.035	0.30	0.30	0.40	0.012
	Q355C	0.20			0.030	0.030				0.012
	Q355D	0.20			0.025	0.025				–

Also referred to as angle irons or angle bars, steel angles are finished steel products made through hot-forming semi-finished carbon steel. As steel angles are mainly used for providing structural support, the most ideal composition is a low alloy, yet high strength steel with better ductility and toughness. With this in mind, the different uses of steel angles can vary from bridge ways, warehouses, equipment manufacturing, support frames, shelves, or even utility carts.

Although steel angles are considered to be the most basic version of any roll-formed steel, they offer excellent advantages, especially when it comes to framing, reinforcement, aesthetic trims, brackets, and the like. Combined with the inherent properties of low-alloy steel, these angle bars have been a reliable assembly part or construction material, depending on the use.

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Product Details

Product Name	Q345 Q355 angle steel
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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