COR-TEN,CORTEN A,CORTEN STEEL,A242,A558 GR A,S355JOW,

CORTEN A STEEL
Weather resistant steel

Physical Properties

Weather resistant steel	Standard	Tensile Strength MPa	Yield Strength MPa	Elongation in 2 inches (min.) %
CORTENA	US steel	470-630	355	20
IRSM 41-97	Indian Railways	480 min	340 min	21
ASTM A 588	ASTM	485 MIN	345 min	21

Chemical Properties

Weather resistant steel	C	Mn	P	S	Si	Cr	Ni	Mo	Cu
Corten-A	0.12	0.20-0.50	0.070-0.150	0.030	0.25-0.75	0.50-1.25	0.65	-	0.25-0.55
IRS M-41	0.10	0.25-0.45	0.075-0.112	0.030	0.28-0.72	0.35-0.49	0.20-0.49	-	0.30-0.39
ASTM A 588	0.20	0.75-1.30	0.04 MAX	0.050	0.15-0.50	0.30-050	0.50 MAX	-	0.20-0.40

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ASTM A242-04 High-Strength Low-alloy Structural Steel 

Grade	Chemicals Composition%					Tensile Test
	C	Mn	P	S	Cu	Thikness (t)mm	Yield Point Ksi(N/mm2)	Tensile Strength Ksi(N/mm2)	Elongation
Type1	0.15 Max	1.00 Max	0.15 Max	0.05 Max	0.20 Min
						t<19.05	50(345) Min	70(480) Min	Test Piece In (mm)	% Min
						19.05<t<38.10	46(315) Min	67(460) Min	GL=8(200) GL=2(50)	18 21
						38.10<t<101.6	42(290) min	63(435) Min

Remarks:
1 For plates wider than24 in(600mm), the Elongatior requirment is reduce Two Percentage points.
2 For normal thickness 5/16in(8mm), the deduction from the specified percentage of elongation in 8 in(200mm).
shall be made for decereses of the nominal thickness below 5/16 in.(8mm).
see elongation requirement adjustment under the tension tests section of specification A6 for deduction values.

Specifications for Corten Steel Strip & Coil according tp Jis 3125-87(SPA-H & SPA-C)JAPAN STANDARD
Type Symbol	C	Si	Mn	P	S	Cu	Cr	Ni	Yield N/mm2	TensileN/mm2
SPA-H	0.12 max	0.25 to 0.75	0.20 to 0.50	0.07 to 0.15	0.4 max	0.25 to0.60	0.30 to 1.25	0.65 max	343 min	481 min
SPA-C									34 min	451 min

Standards

Europe	Material no.	D	F	GB	USA	J	Salzgitter Flachstahl	FK1)
S355J0WP	1.8945	-	E 36 WA 3	WR 50 A	-	-	Allwesta 510 P	B
S355J2WP	1.8946	-	E 36 WA 4	-	A 242 Type 1	-	Allwesta 510 FP	B
S355J0W	1.8959	-	E 36 WB 3	WR 50 B	A 588	SMA 50 AW	Allwesta 510	B
S355J2W	1.8965	WTSt 52-3	E 36 WB 4	WR 50 C	-	SMA 50 CP	Allwesta 510 F	B
S355K2G2W	1.8967	-	-	-	-	-	Allwesta 510 F 40	B

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¹⁾ FK = Tensile strength class

Chemical composition in percent by weight¹⁾ [%] (Heat analysis)

Grade	C	Si	Mn	P	S	N	Cu	Cr	Ni
	max.	max.			max.	max.			max.
S355JOWP	0,12	0,75	max. 1,00	0,06 - 0,15	0,035	0,0093)	0,25 - 0,55	0,30 - 1,25	0,65
S355J2WP	0,12	0,75	max. 1,00	0,06 - 0,15	0,030	– 4)	0,25 - 0,55	0,30 - 1,25	0,65
S355JOW	0,16	0,50	0,50 - 1,50	max. 0,035	0,035	0,0092) 3)	0,25 - 0,55	0,40 - 0,80	0,65
S355J2W	0,16	0,50	0,50 - 1,50	max. 0,030	0,030	– 4)	0,25 - 0,55	0,40 - 0,80	0,65
S355K2W	0,16	0,50	0,50 - 1,50	max. 0,030	0,030	– 4)	0,25 - 0,55	0,40 - 0,80	0,65

1) The steel may contain a maximum of 0,65 % Ni, 0,30 % Mo and 0,15 % Zr.
2) Exceeding the specified maximum value is permitted if the phosphorous content remains below the maximum value by 0,005 % for each 0,001 % of nitrogen; however, the nitrogen content must not exceed 0,012 % in the heat analysis.
3) The maximum nitrogen content shall not apply if the steel grades contain at least 0,020 % Altotal or sufficient quantities of other nitrogen-fixing elements.
4) The steel grades contain at least one of the following elements: Altotal : ≥ 0,020 %, Nb: 0,015 - 0,060 %, V: 0,02 - 0,12 %, Ti: 0,02 - 0,10 %. If a combination of these elements is present, at least one of them is contained with the specified minimum content.

Mechanical properties¹⁾

Grade	Position of sample	Min. yield strength		Tensile strength		Min. total elongation [%]
		MPa		MPa		L0 = 80 mm			L0 = 5,65 √S0
		e2) ≤ 16	e2) > 16	e2)< 3	e2) ≥ 3	e2) ≤ 2	2 < e 2) ≤ 2,5	2,5 < e2) ≤ 3	e2) ≥ 3
S355J0WP	l/t	355	-	510 - 680	470 - 630	16/14	17/15	18/16	22/20
S355J2WP	l/t	355	-	510 - 680	470 - 630	16/14	17/15	18/16	22/20
S355J0W	l/t	355	345	510 - 680	470 - 630	16/14	17/15	18/16	22/20
S355J2W	l/t	3553)	345	510 - 680	470 - 630	16/14	17/15	18/16	22/20
S355K2W	l/t	3553)	345	510 - 680	470 - 630	16/14	17/15	18/16	22/20

1) The tensile test values given in the table apply to longitudinal samples; in case of strip and sheet steel of widths of ≥ 600 mm, transverse samples should be taken.
2) Nominal thickness e [mm]
3) S355J0WP and S355J2WP: e ≤ 12 mm.

Notch impact energy in condition of delivery (minimum values obtained using Charpy-V samples)

Grade	Notch impact energy1)	Position
	J	0C
S355J0WP	27	0
S355J2WP	27	-20
S355J0W	27	0
S355J2W	27	-20
S355K2W	40	-20

1) Average values of 3 samples; one individual value may fall short of the required minimum value by not
2)More than 30 %. The sample width shall equal the product thickness if the latter is between 5 - 10 mm,
3)The tests being performed using samples which are similar to Charpy-V samples. The valuesspecified
4)In the table above are to be reduced proportionally to the sample width.