Corten Steel Plates

Corten Steel is a high-strength weathering steel, often referred to in industrial specifications as Cor 10. This unique alloy is engineered to develop a stable, rust-like “patina” when exposed to the elements, which acts as a self-protecting barrier. Jitu Milan Steels supplies this material in various forms, including plates, coils, and structural sections, adhering to equivalent standards such as ASTM A588, A242, and A606-4.

The primary advantage of Corten Steel is its exceptional atmospheric corrosion resistance, allowing it to be used without paint or external coatings. This “self-healing” property not only creates a distinct brown-orange aesthetic but also significantly reduces long-term maintenance and recoating costs. Its high structural integrity makes it ideal for bridges, storage tanks, exhaust systems, and architectural frames where durability and a natural finish are essential.

We deal in all sizes is from 1mm to 100mm as per client's requirements.

Corten Steel Plate Grades

Specifications

Material : Corten A, Corten B , S355J0WP, S355J0W, S355J2W, A588 Grade A, A588 Grade B, A242 Type 1 A242 Type 2, ASTM A606 Type 1 , ASTM A606 Type 2
Thickness : 1.5mm – 100mm
Width : 1000mm – 3000mm
Length : 2500mm- 12000mm
Uses : Corten steel is used in external and internal cladding for any building, Bridges, Containers and more usages.

Grade C % Si % Mn % P % S % Cr % V % Ni % Cu %
A588 Gr A 0.19 0.30-0.65 0.80-1.25 0.04 0.05 0.40-0.65 0.02-0.10 0.40 0.25-0.5
A588 Gr B ≤0.20 0.15-0.50 0.75-1.35 0.040 0.050 0.40-0.70 0.01-0.10 ≤0.50 ≤0.50
Grade C Mn P S Si Cr Ni Mo Cu Fe
IRSM 41-97 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
Grade C Mn Cr Si CEV S Cu P
ASTM A242 TYPE 1 Max 0.12 Max 1 0.3-1.25 Max 0.75 Max 0.52 Max 0.03 0.25-0.55 0.06 – 0.15
ASTM A242 TYPE 2 0.20 Max 1.35 Max 0.3-1.25 0.05 0.20 Min 0.04
Grade C Si Mn P S Al V Cu Cr Ni
CORTEN A 0.12 max 0.25 – 0.75 0.20 – 0.50 0.07 – 0.15 0.030 max 0.015 – 0.06 0.25 – 0.55 0.50 – 1.25 0.65 max
CORTEN B 0.19 max 0.30 – 0.65 0.80 – 1.25 0.035 max 0.030 max 0.020 – 0.06 0.02 – 0.10 0.25 – 0.40 0.40 – 0.65 0.40 max
S355J2W+N Chemical Composition
C Si Mn P S Cr Zr Ni Cu Mo CEV
0.16 max. 0.50 max. 0.50 max. 0.03 max. 0.03 max. 0.40-0.80 0.15 max. 0.65 max. 0.25-0.55 0.03 max. 0.44 max.
Grade C Mn Ph
ASTM A606-4 0.22-0.26 1.25-1.3 0.04-0.06
Steel Grades C max Si max Mn P max S max Cu max Cr max Ni max V max Nb max Al min
A 709 Gr.50W 0.035 0.035 0.020
GradeCorten IRSM 41-97CMnPSSiCrNiMoCuFe
0.100.25-0.450.075-0.1120.0300.28-0.720.35-0.490.20-0.490.30-0.39
Grade Thickness Yield Strength ReH[N/mm2]transv.min TensileStrength Rm[N/mm2]transv
ASTM A588 0mm-100mm 340 MPa 480 MPa
102mm-127mm 320 MPa 460 MPa
127mm-203mm 290 MPa 430 MPa
GradeStandardTensile Strength MPaYield Strength MPaElongation in 2 inches (min.) %
IRSM 41-97Indian Railways480 min345340 min21
Grade Min. Yield Strength Mpa Tensile Strength MPa Impact
A242 Type1 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
A242 Type1 355 345 …. …. …. …. 510-680 470-630 ….
A242 Type 2

Properties

Conditions

T (°C)

Treatment

Density (×1000 kg/m3) 7.7-8.03

25

Poisson’s Ratio 0.27-0.30

25

Elastic Modulus (GPa) 190-210

25

Grade Yield strength ReL (N/mm 2) Min. Tensile Strength Rm (N/mm 2) Min. Elongation A50% Min.
COR-TEN A 345 485 20
COR-TEN B 345 485 19
S355J2W+N Mechanical Properties
Yield Strength Tensile Strength Minimum Elongation A (Lo = 5.65 vSo) %
355 MPa 510 – 680 MPa 20
Grade Tensile Strength ksi Yield2% Offset ksi
ASTM A606 TYPE 4 50 70
Grade Thick mm Yield[MPa] Tensile [MPa] Elongtation Min % reduction Min % HB
Steel Plate Structural steel
8in[200mm] 2in[50mm] 8in[200mm] 2in[50mm]
A 709 Gr.50W ≤100 345min 485min 18 21 18 21J
Grade Standard Tensile Strengtd MPa Yield Strengtd MPa Elongation in 2 inches (min.) %
IRSM 41-97 Indian Railways 480 min345 340 min 21
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