Q235 Carbon structure steel tube,Carbon steel tube,Carbon steel tubing,Carbon steel pipe,SS400 Carbon steel tube,A36 Carbon structure steel pipe

Q235 Carbon structure steel tube

Q235 steel is an ordinary carbon structural steel with a yield value of about 235 MPa, and the yield value will gradually decrease with the increase of steel thickness. Because the carbon content of Q235 steel will be moderate and its comprehensive performance will be better, it is widely used in the construction of plants, bridges, ships, vehicles and so on.

Q235 steel is a Chinese GB standard plain carbon structural steel, it provided in four quality grades: Q235A, Q235B, Q235C and Q235D. 3PE is a coating that usually used to protect carbon steel pipe and prolong their service life.

Product Details

Product Name	Carbon Steel Tube/Pipe
Dia.	15-1200mm
Length	3m -12m or as required
Thickness	0.8-26.5mm for ERW, 1.25-50mm for SMLS
Standard	GB,ASTM,DIN,BS,JIS
Technique	Cold / Hot rolled
Surface Treatment	3PE/Fusion bond Expoxy Coating / Black Oil Coating as per customer's requirement
Thickness Tolerance	±0.01mm~ ±0.25mm
Material	Q235
Application	Bridges, vehicles, ships, buildings, pressure vessels, etc.
MOQ	1 ton , We can accept sample order.
Shipment Time	Within 15-20 workdays after receiving deposit or workable L/C
Export Packing	Waterproof paper, and steel strip packed. Standard Export Seaworthy Package.Suit for all kinds of transport,or as required
Capacity	250,000 tons/year

Q235 Chemical Composition:

Grade	C	Si	Mn	P	S
Grade	%	≤%	%	≤%	≤%
Q235A	0.14-0.22	0.30	0.30-0.65	0.045	0.050
Q235B	0.12-0.20	0.30	0.30-0.70	0.045	0.045
Q235C	≤0.18	0.30	0.35-0.80	0.040	0.040
Q235D	≤0.17	0.30	0.35-0.80	0.035	0.035

Q235 Physical properties :

Tensile strength (σb/MPa)	370-550
Yield strength (N/mm2)	235(thickness≦16mm)
	225(thickness>16-40mm)
	215(thickness>40-60mm)
	205(thickness>60-100mm)
	195(thickness>100-150mm)
	185(a>150-200mm)
Elongation (δ5/%)	≥26(thickness≦16mm)
	≥25(thickness>16-40mm)
	≥24(thickness>40-60mm)
	≥23(thickness>60-100mm)
	≥22(thickness>100-150mm)
	≥21(thickness>150-200mm)
Elastic modulus(E/Gpa)	200-210
Poisson's ratio( ν)	0.25~0.33
Linear expansion coefficient of material α(1/°C)	1.20E-05

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