Is Stainless Steel Magnetic?

duplex tube

Offshore oil and gas platforms see a number of the most demanding environmental situations for construction materials wherever. Exposed to excessive weather, wind and waves, these structures should function safely for many years. The most difficult sites are situated in or close to the Arctic oceans, the place frequent storms intensify the extraordinarily corrosive exposure to seawater. Molybdenum-containing alloys, especially and super stainless steels, last longer than almost all other supplies in these troublesome conditions.

magnetic stainless steel sheet

Austral Wright Metals supplies a comprehensive range of stainless steels, copper alloys, nickel alloys and different high efficiency metals for difficult service circumstances. Our engineers and metallurgists might be happy to provide further knowledge and functions recommendation.

Though the stainless-steel 304 alloy has a higher melting level, grade 316 has a better resistance to chemical substances and chlorides than grade 304 stainless-steel. When it involves applications with chlorinated solutions or publicity to salt, grade 316 stainless-steel is taken into account superior.

Super duplex, meanwhile, contains 25% chromium, 7% nickel and 4% molybdenum. The higher levels of those components is what gives tremendous duplex its enhanced resistance to corrosion in opposition to duplex stainless steel. The increased nickel content and the inclusion of molybdenum makes grade 316 stainless steel a bit costlier than grade 304 per ounce of fabric. But where grade 316 stainless proves superior is its elevated corrosion resistance—significantly against chlorides and chlorinated solutions. This makes grade 316 stainless significantly fascinating for purposes where exposure to salt or other powerful corrosives is a matter.

  • Due to the lower alloying content material, duplex stainless steels could be lower in price, particularly in times of excessive alloy surcharges.
  • Additionally, it may often be attainable to scale back the section thickness of duplex stainless-steel, because of its elevated yield power in comparison with austenitic chrome steel.
  • Duplex stainless steels have lower nickel and molybdenum contents than their austenitic counterparts of similar corrosion resistance.

Where is duplex stainless used?

The extensive benefits of Duplex stainless steel mean that it can be used in many different are used in: Chemical processing, transport and storage. Pipes for production and transportation of oil and gas. Oil and gas exploration and offshore rigs.

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

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

The increased nickel content material and the inclusion of molybdenum permits for grade 316 chrome steel to have higher chemical resistance than 304 chrome steel. It’s capability to resist acids and chlorides, together with salt, makes grade 316 best for chemical processing and marine applications.


Salt will even compromise the protective oxide layer of grade 304 chrome steel, resulting in rust. For marine functions, or processes involving chlorides, grade 316 stainless-steel is right.

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.

The most basic distinction between grade 304 and grade 316 stainless steels is that 316 tends to have more nickel and a bit of molybdenum in the combine. The general mechanical properties of the two metals are principally comparable. Duplex steels are characterised by excessive chromium (19–28%) and molybdenum (as much as 5%) and decrease nickel contents than austenitic stainless steels. The most used duplex stainless steels are the 2205 (22% Chromium, 5% Nickel) and the 2507 (25% Chromium, 7% Nickel); 2507 is known as “super duplex” due to its greater resistance to corrosion. Austral Wright Metals assumes no legal responsibility in reference to the knowledge in this Product Data Sheet.

duplex tube
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