Is 316 Stainless Steel Worth The Extra Cost Over 304?

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

The minimal 10.5% chromium in stainless steels offers resistance to approximately seven-hundred °C (1,300 °F), while 16% chromium provides resistance as much as roughly 1,200 °C (2,200 °F). Type 304, the most common grade of stainless-steel with 18% chromium, is proof against approximately 870 °C (1,600 °F). Other gases, such as sulfur dioxide, hydrogen sulfide, carbon monoxide, chlorine, additionally assault stainless-steel. Resistance to other gases relies on the type of gas, the temperature, and the alloying content material of the 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.

The pulp and paper business was one of many first to extensively use duplex chrome steel. Today, the oil and gas industry is the largest person and has pushed for extra corrosion resistant grades, resulting in the development of super duplex and hyper duplex grades.

Trade Item�� EXW,FOB,CNF,CIF,CFR

• The minimal 10.5% chromium in stainless steels supplies resistance to roughly seven-hundred °C (1,300 °F), while 16% chromium provides resistance up to roughly 1,200 °C (2,200 °F).
• Other gases, similar to sulfur dioxide, hydrogen sulfide, carbon monoxide, chlorine, also assault stainless-steel.
• The addition of enormous quantities of nickel and chromium needed for corrosion resistance in stainless steels signifies that traditional hardening and tempering methods aren’t effective.
• Resistance to different gases is dependent on the type of gasoline, the temperature, and the alloying content of the stainless steel.
• Type 304, the most common grade of stainless-steel with 18% chromium, is resistant to approximately 870 °C (1,600 °F).

cr in chrome steel

Post-weld warmth therapy is sort of at all times required while preheating before welding can be necessary in some cases. Unlike carbon steel, stainless steels don’t undergo uniform corrosion when uncovered to wet environments. Unprotected carbon steel rusts readily when uncovered to a mixture of air and moisture.

The increased nickel content and the inclusion of molybdenum makes grade 316 stainless steel a bit costlier than grade 304 per ounce of material. But where grade 316 stainless proves superior is its elevated corrosion resistance—particularly against chlorides and chlorinated options.

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

The most typical high-temperature gaseous combination is air, of which oxygen is essentially the most reactive element. To avoid corrosion in air, carbon steel is proscribed to roughly 480 °C (900 °F). Oxidation resistance in stainless steels increases with additions of chromium, silicon, and aluminium. Small additions of cerium and yttrium enhance the adhesion of the oxide layer on the surface. Type 304 and Type 316 stainless steels are unaffected weak bases such as ammonium hydroxide, even in high concentrations and at excessive temperatures.

More recently, the less expensive (and slightly much less corrosion-resistant) lean duplex has been developed, mainly for structural purposes in building and development and within the water business. The addition of nitrogen also improves resistance to pitting corrosion and increases mechanical strength.