Stainless Steel Grades:
Each one of the grades is grouped into one of five stainless steel families. These families are named after their metallurgical microstructure. The five groups are austenitic, ferritic, duplex, martensitic and precipitation hardening. Bhansali Metalloys Inc also provide specially designed stainless steel as per the requirements and specifications of the customers. Our Stainless Steel is offered in created to order length sizes and shapes, and are obtainable at market leading costs.
Ferritic Stainless Steels :-
The lack of other alloying elements means ferritic stainless steel are known as plain Chromium steels. They have a Chromium content between 12 and 18%. The carbon content in ferritic stainless steel is very low.
Ferritic stainless steel:
- Have moderate corrosion resistance
- Are not susceptible to stress corrosion
- Are magnetic
- Cannot be hardened by heat treatment
- Are always used in the annealed condition
- Poor weldability for most grades
Austenitic Stainless Steels:-
70% of commercially produced stainless steel are austenitic. The most common grade of austenitic stainless steel is 304 (1.4301). Globally, 304 accounts for more than 50% of stainless steel consumed. A common name for 304 stainless is 18/8. This name mention to the average composition, 18% chromium and 8% nickel. It is sometimes used generically for austenitic stainless steel other than 304, even if the actual composition is largely different.
Some of the features of austenitic stainless steel include:
- Excellent corrosion resistance
- Non-magnetic when annealed
- Rapidly work harden with cold work
- Not hardenable by heat treatment
- Ductile and readily formable
- Excellent weldability
- Hygienic with excellent cleanability
- Good performance at high temperatures
- Excellent performance at low temperatures
Other than 304 stainless steel, other common austenitic grades include the popular marine grade, 316 stainless steel and the machining bar grade, 303 stainless steels.
Martensitic Stainless Steels: –
The first stainless steel to be developed for commercial applications were martensitic stainless steel. These steels were used for cutlery. When compared with other stainless steel, the martensitic stainless group have a relatively high carbon content (0.1 – 1.2%). Like ferritic stainless steel, they are plain chromium steels containing between 12 and 18% chromium.
Features of martensitic stainless steel include:
- Moderate corrosion resistance
- Heat treatable
- Inability to be cold formed
- Poor weldability
Martensitic grades include 420 stainless steel, which is used in engineering applications like shafts and 440C stainless steel – the hardest and most abrasion resistant of all the stainless steel.
Duplex Stainless Steels :-
Duplex stainless steel gets their name from the fact that they contain both a ferritic and austenitic microstructure. They have a relatively high chromium content of between 18 and 28%. Nickel content is moderate at 4.5 to 8%. At this level, the nickel content is too low to generate a fully austenitic structure. This results in a duplex microstructure containing both ferritic and austenitic phases. Duplex stainless steel also tends to contain 2.5-4% molybdenum.
Duplex stainless steel has:
- Excellent corrosion resistance
- Increased resistance to chloride attack
- Good resistance to stress corrosion cracking
- Tensile and yield strength higher than austenitic or ferritic grades
- Good weldability
- Good formability
With excellent corrosion resistance the common duplex grade, 2205 stainless steel, is used in heat exchangers, chemical tanks and refineries.
Stainless Steel Grades and their International Equivalents:-
|Grades||UNS No.||BS||Euronorm No.|
Stainless steel is a steel alloy with rise corrosion resistance compared to carbon/alloy steel. BMI provide a variety of grades of stainless steel, cut to the size as per your requirement, including: – 17-4/17-4PH Stainless Steel, 303 Stainless Steel, 304/304L Stainless Steel, 316/316L Stainless Steel, 321 Stainless Steel, 347 Stainless Steel, 416 Stainless Steel, 446 Stainless Steel, 904L Stainless Steel etc. We manufacture and export Stainless Steel Pipes and Tubes, Stainless Steel Sheets, Plates, Coils, Stainless Steel Round Bar, Stainless Steel Flat Bar, Stainless Steel Fasteners, Stainless Steel Hexagon Bar, Stainless Steel Square Bar, Stainless Steel Flanges, Stainless Steel Valves, Stainless Steel Shim Sheet etc. all over the globe.
Each Stainless Steel is otherwise designed based on the characteristics of the applying and additionally the pressure. Consequently, different industries use different Stainless Steel. We also produce customized Stainless Steel Products at our factory as per our client’s requirements. For any types of Stainless Steel Grade Price List Call on +91 9152160158 or drop an Email to email@example.com | firstname.lastname@example.org
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