Corten A steel chemical composition,Corten A steel mechanical property

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ASTM Corten A steel grade is a hot rolled products of structural steels in technical delivery conditions with improved atmospheric corrosion resistance.The steel grade CortenA is according to ASTM standard which with the yield strength of 355MPa and the tensile strength of 470-630MPa.Corten-A steel was first used in buildings in 1958 because it has anti-corrosion properties. Then Corten-A especially in China and Japan was widely used for bridges, trains, cars, trucks and industrial facilities and so on.

Corten A steel details:    
Steel Category: steel for resistant to atmospherical corrosion
Steel grade: ASTM CortenA
Dimension: Thickness 2-460mm, Width 1500-3200mm, Length 6000-12000mm
CortenA Atmospheric Corrosion Resistant Steel Description:

Corten A steel delivery state:
Hot Rolled, Cold Rolled, Normalized, Quenched, Tempering, Thermal Mechanical Control Process (TMCP), Electroslag Remelting Technical, HIC test.

Corten A steel chemical composition:

C %	Mn %	Cr %	Si %	CEV %	S %
Max 0.12	Max 1	0.3-1.25	Max 0.75	Max 0.52	Max 0.03
Cu %	P %
0.25-0.55	0.06 - 0.15

Method of deoxidation FN = rimming steels not permitted.
For long products the P and S content can be 0.005% higher.
The CortenA  steels may show a Ni content of max. 0,65 %

Corten A steel mechanical property:        

Grade	Min. Yield Strength Mpa						Tensile Strength MPa			Impact
CortenA	Nominal Thickness (mm)						Nominal Thickness (mm)			degree	J
Thick mm	≤16	>16 ≤40	>40 ≤63	>63 ≤80	>80 ≤100	>100 ≤150	≤3	>3 ≤100	>100 ≤150	-20	27
Corten A	355	345	….	….	….	….	510-680	470-630	….

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