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.

The melting level of stainless-steel 304 is reached at temperatures ranging between 2,550 °F – 2,650 °F (1399 °C – 1454 °C). However, the nearer grade 304 chrome steel reaches its melting point, the extra tensile strength it loses. Grade 316 is a well-liked alloy of stainless steel with a melting range of 2,500 °F – 2,550 °F (1,371 °C – 1,399 °C). As an austenitic stainless steel alloy, it has qualities similar to high strength, corrosion resistance, and excessive concentrations of chromium and nickel. The alloy has a tensile strength of 579 MPa (eighty four ksi) and a maximum use temperature of around 800˚C (1,472˚F).

What’s The Difference Between Grade 316 And Grade 304 Stainless Steel?

This reduces pitting from chemical environments and permits grade 316 chrome steel to be used in highly acidic and caustic environments that may in any other case eat away on the metallic. For occasion, grade 316 stainless steel can stand up to caustic options and corrosive applications corresponding to vapor degreasing or many different elements cleansing processes. Another in style high-performing alloy, grade 304 stainless-steel is a sturdy material when it comes to tensile power, sturdiness, corrosion, and oxidation resistance.

To keep away from corrosion in air, carbon metal is proscribed to approximately 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 floor. Due to the addition of molybdenum, grade 316 chrome steel is extra corrosion resistant than comparable alloys, similar to 304 stainless-steel.

• Type 304, the most typical grade of chrome steel with 18% chromium, is resistant to roughly 870 °C (1,600 °F).
• Other gases, such as sulfur dioxide, hydrogen sulfide, carbon monoxide, chlorine, also assault stainless-steel.
• The minimal 10.5% chromium in stainless steels supplies resistance to approximately seven hundred °C (1,300 °F), while 16% chromium offers resistance up to roughly 1,200 °C (2,200 °F).

Our stainless production range

Most watches that are manufactured from stainless-steel are manufactured from this grade. Rolex is an exception in that they use Type 904L. 18/10 stainless typically corresponds to this grade.

Increasing chromium and nickel contents provide elevated resistance. Unlike carbon steel, stainless steels don’t undergo uniform corrosion when uncovered to wet environments. Unprotected carbon metal rusts readily when uncovered to a combination of air and moisture. The ensuing iron oxide floor layer is porous and fragile.

Though the chrome steel 304 alloy has the next melting level, grade 316 has a better resistance to chemical substances and chlorides (like salt) than grade 304 chrome steel. When it involves functions with chlorinated options or publicity to salt, grade 316 stainless-steel is taken into account superior. The ease of welding largely depends on the type of stainless steel used. Austenitic stainless steels are the simplest to weld by electric arc, with weld properties much like those of the base metal (not chilly-worked). Martensitic stainless steels can be welded by electrical-arc however, as the warmth-affected zone (HAZ) and the fusion zone (FZ) type martensite upon cooling, precautions must be taken to keep away from cracking of the weld.

Duplex Stainless Steel

Other gases, corresponding to sulfur dioxide, hydrogen sulfide, carbon monoxide, chlorine, additionally assault stainless steel. Resistance to different gases relies on the kind of fuel, the temperature, and the alloying content of the chrome steel. When 316L metal of low carbon content material is just slightly higher than 316 metal on strength level. So generally grade 316l is almost the same as 316 grade.

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