Swastik Iron & Steel Co.

IRSM-41 is an Indian Railways specification for weathering steel (similar to Corten-A / ASTM A242 Type 1).
It is designed to resist atmospheric corrosion, especially in railway environments exposed to moisture, pollutants, and cyclic weather.

This steel forms a stable, protective rust layer (patina) that minimizes further corrosion, eliminating the need for regular painting in many applications.

MS Chequered Plate is a hot-rolled steel plate with a raised chequer pattern (diamond or tear-drop) on one side.
It provides:

• Anti-slip surface

• Increased grip

• Higher structural strength

• Durability under load and impact

Used widely in flooring, platforms, walkways, vehicle body floors, stair treads, and other areas needing slip resistance.

ABREX (Abrasion Resistant Exellent) is a trademarked series of abrasion-resistant steel plates produced primarily by Nippon Steel Corporation (Japan).
These plates offer extremely high hardness, superior wear resistance, and good weldability/formability.

Common grades include:

• ABREX 400

• ABREX 450

• ABREX 500

• ABREX 600

Higher numbers indicate higher hardness and wear resistance.

SAILHARD plates are wear-resistant, through-hardened steel plates with a typical hardness of ~200 BHN and high mechanical strength.
They are used where components are subject to abrasion, sliding wear, impact, and heavy loading.

Key characteristics:

• Higher hardness than normal structural steel

• Improves life of liners and wear components

• Good formability and moderate weldability

• Suitable for fabrication in high-wear industrial applications

S235JR is a non-alloy structural steel grade defined in EN 10025-2.
It is widely used in structural fabrication, construction, machinery parts, and general engineering applications.

• “S” = Structural steel

• “235” = Minimum yield strength 235 MPa

• “JR” = Impact tested at +20°C (Joule Rating)

S235JR has good weldability, machinability, and moderate strength, suitable for most non-critical structural applications.

Below is a complete, professional specification and description for Duplex Steel Plates, covering grades such as UNS S31803 / S32205 (Duplex 2205), Super Duplex (2507), and lean duplex variants.
If you want it in BOQ / Tender / Datasheet format, I can tailor it.

Below is a complete, industry-standard specification for Structural Steel Plates used in construction, fabrication, bridges, machinery, and general structural applications.
If you need it tailored to a specific grade (IS 2062 / S275 / S355 / A36 / E350 etc.), I can format it accordingly.

Corten Steel Plate, also known as Weathering Steel or Cor-Ten Steel, is a high-strength, low-alloy structural steel designed to form a stable, protective rust-like surface layer (patina) when exposed to atmospheric conditions. This patina acts as a barrier against further corrosion, making the steel self-protecting and significantly reducing the need for painting or surface treatment.

Corten steel is widely used in architectural, industrial, and structural applications where high durability, aesthetic appearance, and low maintenance are required.