duplex stainless

We produce ASTM/ASME Grade 304, Grade 304L,304h, 316, 316L, 316H, 316TI, 321, 321H, 309S, 309H, 310S, 310H, 410S, 2205, 904L, 2507, 254, gh3030, 625, 253MA, S30815, 317L, Type 317, 316lN, 8020, 800, 800H, C276, S32304 and others special requirement stainless steel grade.

circle polished stainless-steel wall cladding sheets

What is the strongest metal in the world?

Type 409: One of the least expensive Stainless grades due to its decreased chromium content. This type should only be used for interior or exterior parts in non-critical corrosive environments. Typical applications include muffler stock.


stainless steels have lower nickel and molybdenum contents than their austenitic counterparts of comparable corrosion resistance. Due to the lower alloying content material, stainless steels can be decrease in cost, particularly in occasions of high alloy surcharges.

  • But it consists of enhanced resistance and energy to stress corrosion cracking.
  • “Lean” duplex chrome steel is designed to have comparable corrosion resistance to common austenitic chrome steel.
  • With a microstructure that is half austenitic and half ferritic, duplex stainless steel has a higher strength than these types of stainless-steel.
  • Furthermore, they are weldable so long as you’re taking care to make use of the proper heat enter and welding consumables.

Additionally, it could usually be potential to cut back the section thickness of duplex chrome steel, due to its elevated yield energy in comparison with austenitic chrome steel. The mixture can result in vital cost and weight financial savings in comparison with a solution in austenitic stainless steels.

The picture shows the yellow austenitic part as “islands” surrounded by the blue ferritic part. When duplex stainless steel is melted it solidifies from the liquid section to a completely ferritic construction. As the fabric cools to room temperature, about half of the ferritic grains rework to austenitic grains (“islands”). The result is a microstructure of roughly 50% austenite and 50% ferrite.

As with all stainless steels, corrosion resistance depends totally on the composition of the chrome steel. For chloride pitting and crevice corrosion resistance, their chromium, molybdenum and nitrogen content material are most necessary. Grade 316 is the standard molybdenum-bearing grade, second in importance to 304 amongst the austenitic stainless steels. The molybdenum gives 316 higher overall corrosion resistant properties than Grade 304, significantly higher resistance to pitting and crevice corrosion in chloride environments. It is instantly brake or roll shaped into a variety of elements for purposes in the industrial, architectural, and transportation fields.

However, to be able to retain the favourable stability of austenitic and ferritic microstructures, it is also necessary to increase the content material of nickel and different elements, which additionally will increase the cost. Alloy 316L is an austenitic stainless steel supplied in the hot labored and annealed situation. The addition of Mo offers the product with much improved corrosion resistance in contrast with Alloy 304, particularly with respect to pitting and crevice corrosion in chloride environments. The minimal 10.5% chromium in stainless steels supplies resistance to roughly seven hundred °C (1,300 °F), whereas sixteen% chromium supplies resistance as much as roughly 1,200 °C (2,200 °F). Type 304, the commonest grade of stainless-steel with 18% chromium, is immune to roughly 870 °C (1,600 °F).

We have thousands tons stock of stainless steel sheet and coil with various size and grade,mainly include austenitic stainless steel, martens stainless steel (including precipitation hardened stainless steel sheet & coil), ferritic stainless steel, and duplex stainless steel.

Characteristics of Stainless Steel Sheet and Plate:
High corrosion resistance
High strength
High toughness and impact resistance
Temperature resistance
High workability, including machining, stamping, fabricating and welding
Smooth surface finish that can be easily clean

Other gases, corresponding to sulfur dioxide, hydrogen sulfide, carbon monoxide, chlorine, also attack stainless steel. Resistance to different gases depends on the kind of gasoline, the temperature, and the alloying content material of the stainless steel. Grade 316 is a popular alloy of stainless steel with a melting range of two,500 °F – 2,550 °F (1,371 °C – 1,399 °C). As an austenitic chrome steel alloy, it has qualities such as excessive power, corrosion resistance, and high concentrations of chromium and nickel. The alloy has a tensile power of 579 MPa and a maximum use temperature of around 800˚C (1,472˚F).

Stock Thickness: 0.1-200.0mm
Production thickness: 0.5.0-200mm
Width: 600-3900mm
Length: 1000-12000mm
200 series: 201,202
300 series: 301,304,304L,304H,309,309S,310S,316L,316Ti,321,321H,330
400 series: 409,409l,410,420J1,420J2,430,436,439,440A/B/C
Duplex: 329,2205,2507,904L,2304
Surface: No.1,1D,2D,2B,NO.4/4K/hairline,satin,6k,BA,mirror/8K

jindal steel ss304 value

They can’t be strengthened by chilly work to the same diploma as austenitic stainless steels. Austenitic chrome steel is the largest family of stainless steels, making up about two-thirds of all chrome steel production . They possess an austenitic microstructure, which is a face-centered cubic crystal structure.

duplex stainless
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