Q355NH Carbon Steel Coil

The width of the sheet is 500~1500 mm; The width of the thickness is 600~3000 mm. Thin Coils are classified by steel types, including ordinary steel, high quality steel, alloy steel, spring steel, stainless steel, tool steel, heat-resistant steel, bearing steel, silicon steel and industrial pure iron sheet, etc. According to the professional use, there are oil drum with board, enamel with board, bulletproof with board, etc. According to the surface coating points, there are galvanized sheet, tin Coil, lead Coil, plastic composite steel Coil.

Description

Q355NH Carbon Steel Coil Features

Is poured with molten steel, cooled and pressed into flat steel.
It is flat, rectangular and can be rolled directly or cut from a wide strip of steel.
According to the thickness of steel Coil, thin steel Coil <4 mm (the thinnest 0.2 mm), medium thick steel Coil 4~60 mm, extra thick steel Coil 60~115 mm.
The steel Coil is rolled into hot rolling and cold rolling.
The width of the sheet is 500~1500 mm; The length of the sheet is 600~3000 mm. Thin Coils are classified by steel types, including ordinary steel, high quality steel, alloy steel, spring steel, stainless steel, tool steel, heat-resistant steel, bearing steel, silicon steel and industrial pure iron sheet, etc. According to the professional use, there are oil drum with board, enamel with board, bulletproof with board, etc. According to the surface coating points, there are galvanized sheet, tin Coil, lead Coil, plastic composite steel Coil.

Specification of Q355NH Carbon Steel Coil

Thickness of cold rolled steel Coil	Thickness of galvanized steel sheet	Wearing Coil+Corrosion resistance Coil	Galvanized coil+Galvanized coil	Ction volume	Stainless steel Coil	Thick Coil
0.1mm	0.1mm	1.5mm	0.1mm	0.1mm	1.5mm	18mm
0.2mm	0.2mm	2.0mm	0.2mm	0.2mm	2.0mm	20mm
0.3mm	0.3mm	2.5mm	0.3mm	0.3mm	2.5mm	22mm
0.4mm	0.4mm	2.75mm	0.4mm	0.4mm	2.75mm	25mm
0.5mm	0.5mm	3.0mm	0.5mm	0.5mm	3.0mm	28mm
0.6mm	0.6mm	3.5mm	0.6mm	0.6mm	3.5mm	30mm
0.7mm	0.7mm	3.75mm	0.7mm	0.7mm	3.75mm	32mm
0.8mm	0.8mm	4.0mm	0.8mm	0.8mm	4.0mm	35mm
0.9mm	0.9mm	4.5mm	0.9mm	0.9mm	4.5mm	40mm
1.0mm	1.0mm	4.75mm	1.0mm	1.0mm	4.75mm	42mm
1.2mm	1.2mm	5.0mm	1.2mm	1.2mm	5.0mm	45mm
1.3mm	1.3mm	5.5mm	1.3mm	1.3mm	5.5mm	48mm
1.4mm	1.4mm	5.75mm	1.4mm	1.4mm	5.75mm	50mm
1.5mm	1.5mm	6.0mm	1.5mm	1.5mm	6.0mm	52mm
1.6mm	1.6mm	6.5mm	1.6mm	1.6mm	6.5mm	55mm
1.8mm	1.8mm	6.75mm	1.8mm	1.8mm	6.75mm	58mm
1.9mm	1.9mm	7.5mm	1.9mm	1.9mm	7.5mm	60mm
2.0mm	2.0mm	7.75mm	2.0mm	2.0mm	7.75mm	62mm
2.1mm	2.1mm	8.0mm	2.1mm	2.1mm	8.0mm	65mm
2.2mm	2.2mm	8.5mm	2.2mm	2.2mm	8.5mm	68mm
2.4mm	2.4mm	8.75mm	2.4mm	2.4mm	8.75mm	70mm
2.5mm	2.5mm	9.5mm	2.5mm	2.5mm	9.5mm	72mm
2.6mm	2.6mm	9.75mm	2.6mm	2.6mm	9.75mm	75mm
2.7mm	2.7mm	10mm	2.7mm	2.7mm	10mm	80mm
2.8mm	2.8mm	10.5mm	2.8mm	2.8mm	10.5mm	82mm
3.0mm	3.0mm	11.5mm	3.0mm	3.0mm	11.5mm	85mm
3.2mm	3.2mm	11.75mm	3.2mm	3.2mm	11.75mm	90mm
3.4mm	3.4mm	12mm	3.4mm	3.4mm	12mm	100mm
3.5mm	3.5mm	12.5mm	3.5mm	3.5mm	12.5mm	110mm
3.6mm	3.6mm	12.75mm	3.6mm	3.6mm	12.75mm	120mm
3.8mm	3.8mm	13.75mm	3.8mm	3.8mm	13.75mm	140mm
4.0mm	4.0mm	14mm	4.0mm	4.0mm	14mm	150mm
4.2mm	4.2mm	14.5mm	4.2mm	4.2mm	14.5mm	160mm
4.5mm	4.5mm	14.75mm	4.5mm	4.5mm	14.75mm	170mm
4.6mm	4.6mm	15mm	4.6mm	4.6mm	15mm	180mm
4.8mm	4.8mm	15.5mm	4.8mm	4.8mm	15.5mm	190mm
5.0mm	5.0mm	16mm	5.0mm	5.0mm	16mm	200mm

Processing Technology Of Q355NH Carbon Steel Coil

With the development of science and technology and industry, the materials put forward higher requirements, such as higher strength, resistance to high temperature, high pressure, low temperature, corrosion resistance, wear and other special physical and chemical properties of the requirements, carbon steel has been unable to fully meet the requirements.

Deficiency of carbon steel:
(1) Low hardenability. In general, the maximum quenching diameter of carbon steel water quenching is only 10mm-20mm.

(2) Relatively low strength and buckling. For example, the σ S of ordinary carbon steel Q235 steel is 235MPa, while the σ S of low alloy structural steel 16Mn is more than 360MPa. The σ S /σ B of 40 steel is only 0.43, which is much lower than that of alloy steel.

(3) Poor tempering stability. Because of the poor tempering stability, carbon steel in the quenching and tempering treatment, in order to ensure higher strength to use a lower tempering temperature, so that the toughness of steel is low; In order to ensure better toughness, the strength of high tempering temperature is low, so the comprehensive mechanical properties of carbon steel is not high.

(4) Can not meet the requirements of special performance. Carbon steel in oxidation resistance, corrosion resistance, heat resistance, low temperature resistance, wear resistance and special electromagnetic and other aspects are often poor, can not meet the needs of special performance.