Is 316 Stainless Steel Worth The Extra Cost Over 304?

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.

Robert Bunsen found chromium’s resistance to strong acids. The corrosion resistance of iron-chromium alloys may have been first recognized in 1821 by Pierre Berthier, who famous their resistance against attack by some acids and suggested their use in cutlery. The addition of nitrogen additionally improves resistance to pitting corrosion and increases mechanical strength.

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
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

expanded stainless-steel sheet

Ferritic stainless steels usually have higher engineering properties than austenitic grades, but have decreased corrosion resistance, because of the decrease chromium and nickel content material. They contain between 10.5% and 27% chromium and little or no nickel, if any, however some types can comprise lead. The minimal 10.5% chromium in stainless steels offers resistance to roughly 700 °C (1,300 °F), while sixteen% chromium provides resistance as much as roughly 1,200 °C (2,200 °F).

• Ferritic stainless steels generally have better engineering properties than austenitic grades, however have reduced corrosion resistance, because of the lower chromium and nickel content.
• The minimum 10.5% chromium in stainless steels supplies resistance to approximately 700 °C (1,300 °F), while 16% chromium offers resistance as much as approximately 1,200 °C (2,200 °F).
• Type 304, the most typical grade of stainless-steel with 18% chromium, is resistant to approximately 870 °C (1,600 °F).
• They include between 10.5% and 27% chromium and very little nickel, if any, however some sorts can contain lead.

Unlike carbon steel, stainless steels do not suffer uniform corrosion when exposed to moist environments. Unprotected carbon steel rusts readily when uncovered to a mix of air and moisture. The resulting iron oxide surface layer is porous and fragile.

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

Pitting corrosion can occur when stainless-steel alloys, corresponding to grade 304 chrome steel, come into contact with salt-wealthy sea breezes and seawater. Chloride resistant metals, like grade sixteen chrome steel, are essential to use for naval purposes or anything concerned with chloride. The increased nickel content and the inclusion of molybdenum permits for grade 316 stainless steel to have higher chemical resistance than 304 stainless steel. It’s capacity to resist acids and chlorides, together with salt, makes grade 316 best for chemical processing and marine purposes.

The most common excessive-temperature gaseous combination is air, of which oxygen is the most reactive component. To keep away from corrosion in air, carbon steel is restricted to roughly 480 °C (900 °F). Oxidation resistance in stainless steels will increase with additions of chromium, silicon, and aluminium. Small additions of cerium and yttrium increase the adhesion of the oxide layer on the floor. Replacing some carbon in martensitic stainless steels by nitrogen is a current development.[when?

Our stainless production range

Martensitic grades are mainly used where hardness, strength, and wear resistance are required. Grade 316 has particularly better resistance to salt and chloride pitting.