Difference Between 316 & 308 Stainless Steel

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.

Another in style excessive-performing alloy, grade 304 chrome steel is a durable materials when it comes to tensile energy, sturdiness, corrosion, and oxidation resistance. The melting point of stainless-steel 304 is reached at temperatures ranging between 2,550 °F – 2,650 °F (1399 °C – 1454 °C). However, the closer grade 304 stainless steel reaches its melting point, the more tensile strength it loses. Martensitic Stainless grades are a bunch of stainless alloys made to be be corrosion resistant and harden-able (utilizing warmth treating).

Type 316 is considerably extra resistant than any of the other chromium-nickel types to options of sulfuric acid. At temperature as high as 120° F (49° C), Type 316 is resistant to concentrations of this acid up to 5 %. At temperatures underneath one hundred° F (38° C), this type has glorious resistance to greater concentrations.

For the Type 316 alloy the solution anneal is accomplished by heating within the 1900 to 2150° F (1040 to 1175° C) temperature vary adopted by air cooling or a water quench, relying on section thickness. Cooling ought to be sufficiently rapid via the ° F ( ° C) range to avoid reprecipitation of chromium carbides and supply optimum corrosion resistance. In each case, the steel ought to be cooled from the annealing temperature to black warmth in lower than three minutes.

Application:kitchware,door,decoration,elevator,water tank,etc

• Stainless steels have a long historical past of utility in touch with water because of their glorious corrosion resistance.
• Types 304 and 316 stainless steels are normal supplies of building involved with water.
• However, with growing chloride contents, greater alloyed stainless steels corresponding to Type 2205 and super austenitic and tremendous duplex stainless steels are used.
• Applications embrace a spread of conditions together with plumbing, potable water and wastewater treatment, desalination, and brine therapy.

Martensitic Stainless Steels

Stock Thickness: 0.1-200.0mm
Production thickness: 0.5.0-200mm
Width: 600-3900mm
Length: 1000-12000mm
Grade:
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

Post-weld annealing is not required when welding skinny sections. Due to the addition of molybdenum, grade 316 stainless-steel is more corrosion resistant than comparable alloys, corresponding to 304 chrome steel. This reduces pitting from chemical environments and allows grade 316 stainless-steel for use in extremely acidic and caustic environments that may in any other case eat away at the metal. For instance, grade 316 chrome steel can stand up to caustic options and corrosive functions corresponding to vapor degreasing or many different elements cleaning processes.

The commonest excessive-temperature gaseous combination is air, of which oxygen is probably the most reactive element. To avoid corrosion in air, carbon steel is restricted to roughly 480 °C (900 °F).

Although these steels are magnetic, they can’t be hardened utilizing heat remedy. They have the next corrosion resistance than martensitic grades, however are mostly inferior to the austenitic grades. These grades are straight Chromium steels with no Nickel, and are sometimes used for ornamental trim, sinks, and certain automotive functions similar to exhaust techniques. At elevated temperatures, all metals react with sizzling gases.

What Is Stainless Steel?

In addition to wonderful corrosion resistance and strength properties, Types 316 and 316L alloys also present the wonderful fabricability and formability which are typical of the austenitic stainless steels. The elevated nickel content and the inclusion of molybdenum makes grade 316 chrome steel a bit costlier than grade 304 per ounce of fabric. But the place grade 316 stainless proves superior is its increased corrosion resistance—notably in opposition to chlorides and chlorinated options.

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