What is meant by weathering steel?

Weathering or Corten steels is low alloy steels with high strength. It offers enhanced resistance to atmospheric corrosion. It can form a protective layer on its surface when exposed to weather elements like rain, humidity, and outdoor conditions. This acts as a barrier that protects the steels from further corrosion.

It also eliminates the need for painting or additional coatings. Weathering steel plate is used in outdoor structural applications like bridges, buildings, sculptures, and facades. This is due to its mechanical properties, unique weathered appearance and low maintenance requirements. Weathering steel plate

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We would like to introduce ourselves as the top Indian supplier of weathering steel sheet

Difference between weathering steel and normal steel?
  • Normal steels primarily consists of iron and carbon. It may also contain small amounts of other elements but lacks specific alloying elements to enhance corrosion resistance. Weathering Steel B Plate contains specific alloying elements like copper, chromium, nickel, and phosphorus.
  • Normal steels is susceptible to corrosion in atmospheric conditions. Thus, it requires painting or additional coatings to protect itself from rust and damage. Weathering Steel A Plate steels develops a natural patina on its surface when exposed to weather elements. This acts as a protective barrier and reduces the rate of further corrosion.
  • Weathering steel sheet has an aesthetically pleasing weathered appearance which normal steels doesn’t have.

Put your trust in Ridhi Siddhi Steel as a stockist of excellent, standards-compliant weather resistant steel plate in Mumbai.

Weathering steel sheet

Weathering steel sheet

Weathering plate

Weathering plate

Weather resistant steel plate

Weather resistant steel plate

How durable is weathering steel plate? what are its other properties

Weathering steel plates are highly durable. It also has several beneficial properties due to the rust-like patina that forms on its surface.

  • Enhanced resistance to atmospheric corrosion
  • No need for frequent painting or coatings which reduces maintenance costs and efforts.
  • The rustic appearance is aesthetically pleasing

The weathering plate also has high tensile strength and can be welded using conventional methods.

Maintain an inventory of thickness ranging from 0.3 to 120 mm for security purposes as an authorised exporter of atmospheric corrosion-resistant steel plate in Dubai.

Weathering steel plate specification

Weathering steel plate specification

 

Thickness Width Length
1/4 to 1/2 “ 48 “ 120″
Grades Application Weldability
A & B building facades to construct roofs anual welding or
submerged arc welding
Get our selection of weathered steel plate and coil for exterior structures, which may be customized in compliance with requirements, also look its different types.
Most frequently used types of weathering plate

Atmospheric corrosion resistant steel plate

Atmospheric corrosion resistant steel plate

  • Width: 48 to 60 inch
  • Thickness: 3/8 to 1/2 inch
  • Length: 120 inch

Weathering Steel coil

Weathering Steel coil

  • Profiles for sculptures
  • Bridge structures
  • Construction products

Weather resistant strip

Weather resistant strip

  • Laser cut
  • Plasma cut
  • Waterjet cut
Is it difficult to find weathering plate grades in odd sizes? purchase from Ridhi Siddhi Steel online at a dealer pricing while also examining the its properties
Size range of weathered steel plate
Thickness Length Width Weight
(lbs/ft)
1/2″ 120.00″ 48.00″ 20.420
1/4″ 120.00″ 60.00″ 10.210
1/4″ 120.00″ 48.00″ 10.210
3/8″ 120.00″ 48.00″ 15.315
Atmospheric corrosion resistant steel plate equivalent
Material # ASTM SEW 087 EN 10155 UNI NFA 35-502 BS 4360 JIS G3114
1.8967 S355K2G2W
1.8945 E 36 WA 3 S355J0WP WR 50 A Fe 510 C1K1
1.8961 WTSt 37-3 S235J2W Fe 360 DK 1 E 24 W 4
1.8959 A 588 – A 242 Gr. 1 S355J0W Fe 510 C2K1 E 36 WB 3 WR 50 B SMA 50 AW
1.8946 A 242 Type 1 S355J2WP Fe 510 D1K1 E 36 WA 4
1.8965 S355J2G2W SMA 50 CP
1.8963 A 588 Gr. A WTSt 52-3 S355J2G1W Fe 510 D2K1 WR 50 C to
1.8966 A 709 Gr. 50 W S355K2G1W E 36 WB 4
Weather resistant steel plate mechanical properties
Element Weathering Steel B Weathering Steel A
Tensile strength Rm MPa 485 485
Minimum yield point ReH Mpa *) 345 345
Minimum elongation A (Lo=5.65 vSo) % 19 20
Weathering steel sheet chemical properties
 Si %
max.
 C %
max.
 Mn % Z%  S %
max.
 P %  N %
max.
 Cr % V%  Cu % Ni% Mo%
According to EN 10027-1 & CR 10260
S235J2W 0.40 0.13 0.20-0.60 0.03 0.04 0.40-0.80 0.25-0.55 0.65
S235J0W 0.40 0.13 0.20-0.60 0.04 0.04 0.01 0.40-0.80 0.25-0.55 0.65
S355J2WP 0.75 0.12 1.00 0.03 0.06-0.15 0.30-1.25 0.25-0.55 0.65
S355J0W 0.75 0.12 1.00 0.04 0.06-0.15 0.01 0.30-1.25 0.25-0.55 0.65
S355J2W 0.50 0.16 0.50-1.50 0.15 0.03 0.03 0.40-0.80 0.25-0.55 0.65 0.30
S355J0W 0.50 0.16 0.50-1.50 0.15 0.04 0.04 0.01 0.40-0.80 0.25-0.55 0.65 0.30
S355K2W 0.50 0.16 0.50-1.50 0.15 0.03 0.03 0.40-0.80 0.25-0.55 0.65 0.30
According to ASTM & ASME Specn.
A 588 Gr. B 0.15-
0.50
0.20 0.75-1.35 0.05 0.04 0.40-0.70 0.01-
0.10
0.20-0.40
A 588 Gr. A 0.3-
0.65
0.19 0.80-1.25 0.05 0.04 0.40-0.65 0.02-
0.10
0.25-0.40
A 588 Gr. C 0.15-
0.40
0.15 0.80-1.35 0.05 0.04 0.30-0.50 0.01-
0.10
0.20-0.50
A 242 Type-1 0.15 1.00 0.05 0.15 0.20 min.
A 588 Gr. K 0.25-
0.50
0.17 0.50-1.20 Cb-0.005
-0.05
0.05 0.04 0.40-0.70 0.30-0.50
A 242 Type-2  0.20 1.50 0.05 0.04 0.20 min.
According to IS STD.
IRSM-41 0.30-
0.50
0.10 0.25-0.45 0.03 0.075-0.14 0.35-0.49 0.05 0.30-0.60 0.28-
0.49
0.05
Typical applications of weathering steel sheet
  • Architectural applications
  • Rail
  • Offshore
  • Bridges
  • Sculptures
Availability chart of weather resistant steel plate
Availability
High strength corrosion resistant steels
Weathering steel plate
Dimension 60″ x CTL 72″ x 240″ 60″ x 240″ 96″ x 240″ 96″ x CTL 72″ x CTL
Thickness
1/4″
3/16″
5/16″
1/2″
3/8″
5/8″
7/8″
3/4″
1″
1-1/4″
1-1/8″
1-3/8″
1-3/4″
1-1/2″
2″
>2″ – 5″
Why choose Ridhi Siddhi for weathering plate ?
  • profiling service
  • extensive range of thicknesses
  • global shipping
  • major stockholding
  • variety of plate widths
  • accurate ‘in-house’ cutting
  • quick turnaround
Weight chart of weathered steel plate
Thickness Weight / Ft.
1/4 10.21 lb
3/16 7.66 lb
1/2 20.42 lb
3/8 15.31 lb
1 40.84 lb
3/4 30.63 lb
1-1/2 61.26 lb
Weathering steel sheet benefits
  • Very low maintenance
  • Extensive Appeal
  • Initial cost benefits
  • Speed of construction
  • long-lasting material

Is weather resistant steel plate more expensive? why ?

Weather resistant steel plate tends to be more expensive than regular carbon steel plates. This is due to the inclusion of specific alloying elements in the chemical composition, which enhance its corrosion resistance.

These alloying elements improve the atmospheric corrosion resistance of the steels by the development of rust like layer. This natural patina eliminates the need for painting or additional coatings which reduces maintenance costs in the long run. The cost-effectiveness of Atmospheric corrosion resistant steel plate comes from its lower maintenance requirements and extended service life.

What are pros and cons of weathering steel coil?

Pros

  • Weathering Steel coil shows enhanced resistance to corrosion
  • It has a unique weather appearance
  • It is highly durable

Cons

  • It has a high initial cost
  • In certain applications, runoff from weathering steels can cause staining on surrounding materials
  • Special considerations and welding procedures are required when working with the material

Why does weathering steel rust? can you paint it ?

Weathering plate rusts due to its chemical composition has a unique combination of alloying elements. The material forms a rustic layer on the surface when the plate is exposed to various weather elements. This, however, protects it from corrosion.

Painting Weathering Steel Plates for External Structures will interfere with the formation of this layer. Clients buy the plates due to the patina formation which helps with corrosion resistance and is aesthetically pleasing. Thus, the plate is not generally painted.

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