PLATE Corten steel SPA-H JIS G3125 Equivalent A588

Kategori: Corrosion Resistant / Weather Resistant Steel
Grades: SPA-H
Standard: JIS G3125

What is “COR-TEN” steel

“COR-TEN” is a US Steel trade name for ASTM A588. Corrosion Resistant Steel (often written without the hyphen as Corten) is a weather resistant steel grade which could more accurately be termed as an “Atmospheric Corrosion Resistant Steel”.
The original COR-TEN received the standard designation A 242 (“COR-TEN A”) from the ASTM International standards group. Newer ASTM grades are A 588 (“COR-TEN B”) and A 606 for thin sheet. All alloys are in common production and use.

Characteristic

Corten steel is a copper chromium alloy steel – this alloy displays a greater level of resistance to atmospheric weathering when compared to other unalloyed steels. Corten steel which were developed to eliminate the need for painting, and form a stable rust-like appearance if exposed to the weather for several years. It’s chemical composition promotes the early formation of an adhering protective layer of rust when exposed to the elements.

 

Availability

Plates & Sheet
Thickness 6 – 12mm
Size: 4 x 8 Feet.

Equivalents
SPA-H JIS G3125, ASTM A242 (COR-TEN A), ASTM A588 (COR-TEN B), S355J2WP+N, S355J2W+N, S355JOWP, S355JOW, S355J2W, 1.8946, 1.8965, SAILCOR IRSM41-97

Chemical Composition (%)

Grade	C	Si	Mn	P	S	Cr	Cu	V	Ni
Corten A	0.12	0.25-0.75	0.20-0.50	0.07-0.15	0.030	0.50-1.25	0.25-0.55	–	0.65
SPA-H	0.12	0.20-0.75	0.60	0.07-0.15	0.035	0.30-1.25	0.25-0.50	–	0.65

Mechanical Properties

At room temperature for plates ?3mm in thickness (transverse test specimans, according to EN 10002). Requirements to hot rolled plates ?3mm in thickness according to EN 10025-5.

Grade	Minimumyield point (ReH Mpa *)	Tensile strengthRm MPa	Minimumelongation A(Lo=5.65 ?So) %
Corten A	355	470-630	20
SPA-H	355	490	22