Carbon Square Steel Pipe Bar Rectangular ASTM A500 JG JIS Customized Manufacturer

Carbon Square Steel Pipe Bar Rectangular ASTM A500 JG JIS Customized Manufacturer

$380-$600 / Ton

Various specifications and models, reliable quality, spot supply

1.The most competitive price
2. ISO certified excellent manufacturer
3. Third party inspection: SGS, CE, etc.
4. Sufficient inventory
5. Fast delivery

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E-mail: sales@shanqisteel.com


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Product Description

Rectangular pipe is a name for square pipe and rectangular pipe, that is, steel pipes with equal and unequal side lengths. It is made of strip steel after process treatment. Generally, the strip steel is unpacked, flattened, crimped, welded to form a round tube, and then rolled into a square tube from the round tube and then cut to the required length.

Rectangular tubes are divided according to the production process: hot-rolled seamless tubes, cold-drawn seamless tubes, extruded seamless tubes, and welded tubes.

Square tubes are divided by material: plain carbon steel square tubes, low alloy square tubes.

1. Common carbon steel is divided into: Q195, Q215, Q235, SS400, 20# steel, 45# steel, etc.

2. Low alloy steel is divided into: Q345, 16Mn, Q390, ST52-3, etc.

Square tubes are classified according to cross-sectional shape:

1. Simple section square tube: square square tube, rectangular square tube.

2. Square tubes with complex sections: flower-shaped square tubes, open-shaped square tubes, corrugated square tubes, and special-shaped square tubes.

Widely used in machinery manufacturing, construction industry, metallurgical industry, agricultural vehicles, agricultural greenhouses, automobile industry, railway, highway guardrail, container skeleton, furniture, decoration and steel structure fields, etc.

Grade	Level	Chemical composition,%					Deoxygenation method
		C	Mn	Si	S	P
				No greater than
Q195	-	0.06~0.12	0.25~0.50	0.30	0.050	0.045	F、b、Z
Q215	A	0.09~0.15	0.25~0.55	0.30	0.050	0.045	F、b、Z
	B				0.045
Q235	A	0.14~0. 22	0.30~0.65	0.30	0.050	0.045	F、b、Z
	B	0.12~0.20	0.30~0.70		0.045
	C	≤ 0.18	0.35~0.80		0.040	0.040	Z
	D	≤ 0.17			0.035	0.035	TZ
Q255	A	0.18~0.28	0.40~0.70	0.30	0.050	0.045	F、b、Z
	B				0.045
Q275	-	0.28~0.38	0.50~0.80	0.35	0.050	0.045	b、Z