Name: Q355/Q420/Q500 Hot rolled carbon thick steel plate
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Q355/Q420/Q500 Hot rolled carbon thick steel plate

Hot rolled steel plate has low hardness, easy processing and good ductility. The surface quality of the hot-rolled steel plate is almost (with low oxidation finish), but the plasticity is good, generally medium and thick plate, cold rolled plate, high strength, high hardness, high surface finish, generally thin plate, can be used as a stamping plate.

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Product details

Q355 is a type of steel. It is a kind of low-alloy high-strength structural steel, widely used in Bridges, vehicles, ships, buildings, pressure vessels, special equipment, etc. 355 indicates that the yield strength of this steel is 355MPa, and its yield value will decrease with the increase of the thickness of the material.

Q420 has high strength and good fatigue resistance. High toughness and low brittle transition temperature; Good cold forming performance and welding performance; It has good corrosion resistance and wear resistance. High strength, especially in the normalizing or normalizing and tempering state has high comprehensive mechanical properties.

Q500 is a building material name, mainly used in factory building, general construction and all kinds of construction machinery. Mainly used in: factory building, general construction and all kinds of engineering machinery, such as mining and all kinds of engineering construction of drilling RIGS, shovels, electric wheel dump truck, mining vehicles, excavators, loaders, bulldozers, all kinds of cranes, coal mine hydraulic support and other mechanical equipment and other structural parts.

Q500 is a low-alloy high-strength structural steel, mainly C,D,E three grades, namely Q500C,Q500D,Q500E.

Product information:

Name	Q355/Q420/Q500 Hot rolled carbon thick steel plate
Brand	Q355 Q390 Q420 Q460 Q500 Q550 Q620 Q690
Quality grade	B, C, D, E, F
Alloy Or Not	Non-Alloy
Production Process	Hot Rolled Carbon Steel
Width	1000mm,1250mm,1500mm,Or customized Size
Length	1m-12m, or Customized Size
Thickness	2.75mm，3.0mm，4.0mm，5.0mm，6.0mm，8.0mm，10.0mm，12.0mm，14.0mm，16.0mm，20.0-100.0mm，Or customized Size
Delivery Conditions	Rolling, Annealing, Quenching, Tempered or Standard
Execution standard	GB/T1591,GB1591-2008
Standard:	AiSi, ASTM, bs, DIN, GB, JIS
Certificate	CE, tisi, KS, JIS, GS, ISO9001
Delivery conditions	Hot rolling (AR or WAR), normalizing, normalizing rolling, hot mechanical rolling
Surface process	ordinary, coated
Delivery Time	with in 3-5 days

Q355B Chemical Element Content (%)

Thickness/mm	Chemical composition(%)	C	Si	Mn	P	S	Cr	Ni	Cu	N	Ti	V
t≤30	Min	-	-	-	-	-	-	-	-	-	-	-
t≤30	Max	0.24	0.55	1.6	0.035	0.035	0.3	0.3	0.4	0.012	0.2	0.2
	Chemical composition(%)	C	Si	Mn	P	S	Cr	Ni	Cu	N	Ti	V
30	Min	-	-	-	-	-	-	-	-	-	-	-
30	Max	0.22	0.55	1.6	0.035	0.035	0.3	0.3	0.4	0.012	0.2	0.2

Q420 Tensile strength (σb/MPa):520~680

Chemical composition(%):

Type	C	Mn	Si	P	S	V	Nb	Ti	Al	Cr	Ni
A	≦0.20	1.00~1.70	≦0.55	≦0.045	≦0.045	0.02~0.20	0.015~0.060	0.02~0.20	-	≦0.40	≦0.70
B	≦0.20	1.00~1.70	≦0.55	≦0.040	≦0.040	0.02~0.20	0.015~0.060	0.02~0.20	-	≦0.40	≦0.70
C	≦0.20	1.00~1.70	≦0.55	≦0.035	≦0.035	0.02~0.20	0.015~0.060	0.02~0.20	≧0.015	≦0.40	≦0.70
D	≦0.20	1.00~1.70	≦0.55	≦0.030	≦0.030	0.02~0.20	0.015~0.060	0.02~0.20	≧0.015	≦0.40	≦0.70
E	≦0.20	1.00~1.70	≦0.55	≦0.025	≦0.025	0.02~0.20	0.015~0.060	0.02~0.20	≧0.015	≦0.40	≦0.70

Type	A	B	C	D	E
Elongation(δ5/%)	≧18	≧18	≧19	≧19	≧19

Thickness/mm	≦16	>16~35	>35~50	>50~100
Yield pointσs/MPa	≧420	≧400	≧380	≧360

Q500 Chemical composition (%) : (C) : 0.18, or less (Mn) : 1.80, or less (Si) : 0.60, or less (P) : 0.030, or less (S) : 0.030, or less (Nb) : 0.11, or less (V) : 0.12, or less (Ti) : 0.20, or less (Cr) : 0.60, or less (Ni) : 0.80, or less (Cu) : 0.55, or less (N) : 0.015, or less (Mo) : 0.20, or less (B) : 0.004, or less (Al) : 0.015 or higher

Thickness/(mm)	≤40	>40~63	>63~80	>80~100
Tensile strength/σb(MPa)	610~770	600~760	590~750	540~730

Thickness/(mm)	≤16	>16~40	>40~63	>63~80	>80~100
Yield strength/σb(MPa)	≥500	≥480	≥470	≥450	≥440

WORKSHOP EQUIPMENT

The company mainly produces hot rolled steel plate, cold rolled steel plate, carbon steel coil, carbon steel pipe, API pipe, structural steel, steel bar and other products. The company has obtained ISO9001 quality system certification and European CE certification, and provides MTC quality certification according to EN10204.3.1

Companies adhering to the "integrity, quality, win-win" spirit of enterprise, in the years of pioneering and enterprising, never forget the original aspiration, accumulated strength, with wisdom and sweat to lead the development of iron and steel industry.

The annual production capacity of cold rolled steel plate production line is 600,000 tons, and the production specification is 0.12-1.2mm*750-1250mm. The production line adopts advanced full hydraulic on the road, flexible and stable control, combined with thickness gauge to achieve automatic control of AGC plate thickness, so as to ensure product quality.

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