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8 Carbon Alloy & Stainless Steels
8 Duplex / Super Duplex
8 Nickel Alloys & Super Alloys
8 Nace Materials
8 Titanium
8 Cupro Nickel
8 Piping / Valves Package

 

Carbon Alloy and Stainless Steels                                                          Print


According to the chemical compositions, standard steels can be classified into three major groups: carbon steels, alloy steels and stainless steels.

  • Carbon Steel is composed of alloying elements that donít exceed these limits: 1% carbon, 0.6% copper, 1.65% manganese, 0.4% phosphorus, 0.6% silicon and 0.05% sulphur.

     
    CARBON STEEL SPECIFICATIONS
    GRADE PIPE SPECS TUBING SPECS WELD FITTING SPECS FORGING SPECS PLATE SPECS


     

  • Alloy Steel is a steel which exceed the limit for carbon steel and also contains elements which are not found in carbon steels, such as nickel, chromium (up to 3.99%), cobalt, etc.

     

    ALLOY STEEL SPECIFICATIONS

    GRADE

    PIPE SPECS.

    TUBING
    SPECS.

    WELD
    FITTING SPECS.

    FORGING
    SPECS.

    PLATE
    SPECS.


     

  • Stainless Steel, contains at least 10% chromium, with or without other elements. Based on its structure, stainless steel can be divided into three grades:

  • Austenitic, typically contains 18% chromium and 8% nickel and is widely known as 18-8. Nonmagnetic in annealed condition, this grade can only be hardened by cold working.

  • Ferritic, contains very little nickel and either 17% chromium or 12% chromium with other elements such as aluminum or titanium. Always magnetic, this grade can be hardened only by cold working.
     

  • Martensitic, typically contains 12% chromium and no nickel. This grade is magnetic and can be hardened by heat treatment.

STAINLESS STEEL-MECHANICAL CHARACTERISTICS TABLE

GRADE

ASTM
(PLATES)

UNS NO.

WERKSTOFF

TENSILE STRENGTH
 MIN N/MM
2

YEILD POINT MIN N/MM2

ELONGATION
2" MIN %

MAX HARDNESS HB

 

Welded and Seamless Pipes and Tubes can be supplied in carbon steel, stainless steel and alloy steel grades, in a full range of outer diameter sizes and wall thicknesses. We can deliver these pipes and tubes within 4-5 days in India, due to the strategic locations of our principalsí warehouses.

Sheets and Plates can be supplied in line with international specifications and in thicknesses from 0.20mm to 150mm, and in widths of up to 4,000mm. We can therefore meet the demands of the marine and shipbuilding industries along with all the other process industries. Unlike many other suppliers we can offer boiler quality plates with mill delivery of 4 to 6 weeks.
 

 
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