Stainless steel round bar classification and explanation
200 series classification:
202 stainless steel round bar, 201 stainless steel round bar,
202 stainless steel round bar: belongs to the chrome-nickel – manganese austenitic stainless steel is better than 201 stainless steel
201 stainless steel round bar: belongs to the chrome-nickel – manganese austenitic stainless steel, magnetic is low
300 series classification:
316 stainless steel round bar, 321 stainless steel round bar, 304l stainless steel round bar, 304 stainless steel round bar,
310 stainless steel round bar, stainless steel round bar 303, 302 stainless steel round bar,
301 stainless steel round bar,
316 l stainless steel round bar: molybdenum and carbon content is low, in the ocean, and pitting corrosion resistance of the chemical industrial environment is greatly better than that of 304 stainless steel. (316 l low carbon, high nitrogen high strength of 316 n, 316 f stainless steel sulfur content is higher, easy cutting stainless steel.
304 l stainless steel round bar: 304 as low carbon steel, be in usually, corrosion resistance and 304 are similar, but after or eliminate stress after welding, the grain boundary corrosion resistance, excellent in without heat treatment, can also keep good corrosion resistance.
304 stainless steel round bar: it has good corrosion resistance, heat resistance, low-temperature strength, and mechanical properties, punching, bending, such as hot workability is good, no heat treatment hardening phenomenon. Purpose: tableware, ambry, boiler, auto parts, medical appliances, building materials, food industry (using the temperature -196°C-700°C)
310 stainless steel round bar: the main features are: high-temperature resistance, generally used in the boiler, the car’s exhaust. Other performance in general.
303 stainless steel round bar: by adding a small amount of sulfur and phosphorus to make it more 304 more machinings, performance and other similar to 304.
302 stainless steel round bar: 302 stainless steel rods are widely used in auto parts, aviation, and aerospace hardware tools, chemical industry. Specific as follows: arts and crafts, bearings, sliding flower, medical equipment, electrical appliances, etc. Features: 302 stainless steel ball belongs to austenite shape steel, with close to 304, but the hardness is higher, 302 HRC 28 or less, has the good rust and corrosion
301 stainless steel round bar: good ductility, used for forming products. Also can rapidly harden by mechanical processing. Good weldability. Abrasion resistance and fatigue strength are better than that of 304 stainless steel.
400 series classification:
410 stainless steel round bar, stainless steel round bar 420, 430 stainless steel round bar
410 stainless steel round bar: belong to martensite chromium steel (high strength), good wear resistance, corrosion resistance is poor.
Grade 420 stainless steel round bar, “cutters” martensitic steel, such as the Brinell high chromium steel stainless steel at the earliest. Also used in surgical tools, can do is very light.
430 stainless steel round bar: ferritic stainless steel, decoration, such as for car accessories. Good formability, but the temperature resistance and corrosion resistance to poor