201 stainless steel pipe Brief introduction Type 201 is an austenitic chromium-nickel-manganese stainless steel. It can be used in most applications as a substitute for 301. Type 201 is nonmagnetic in the annealed condition, but becomes slightly magnetic when cold worked. The rate of work hardening is similar to type 301, although type 201 develops somewhat higher yield strength while retaining equal ductility when cold worked. Toughness at low temperatures is excellent. 202 stainless steel pipe Brief introduction 202 stainless steel is one of the 200 series stainless steel. 200 series stainless steel has low nickel (4%-6%) and high manganese (7.5%-10%). It's widely used in building decoration, municipal engineering, highway guardrail, hotel facilities, shopping malls, vitreous armrest, public facilities, etc. Specification for 201 and 202 stainless steel pipe 201 stainless steel pipe Products Name Grade 201 Stainless Steel pipe Standard ASTM A554, A249, A269 and A270, A312 Grade 201 ( Ni 0.8%-1.3%), Wall Thickness 0.3mm-4.5mm Out diameter 6mm - 219mm Length 5.8m 6m  or as customers' request Tolerance a) Outer Diameter:  +/- 0.2mm b) Thickness: +/- 0.02mm c) Length: +/- 5mm Surface 180G, 320G, 400G Satin / Hairline 400G, 500G, Mirror finish Application Decoration construction, upholstery, industry instrument Handrail, Railing, Staircase, Door, Window, Balcony, Fence, Bench, Furniture Test Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT Chemical Composition of Material Material Composition 201 202 C ≤0.10 ≤0.15 Si ≤1.00 ≤1.00 Mn 9.0-11.0 7.5-10 P ≤0.06 ≤0.06 S ≤0.03 ≤0.03 Cr 13 17-19 Ni 0.8 -1.3 4~6 Cu 0.80-1.0 Mechanical Property Material Item 201 202 Tensile Strength ≥535 ≥520 Yield Strength ≥245 ≥205 Extension ≥30% ≥30% Hardness (HV) <253 <253 201/202 Application Typically used for: food processing equipment, appliances, sinks, restaurant equipment, cooking utensils, hardware, automotive trim, architectural applications, buses, trailers, fastener parts and hose clamps. Definition of stainless steel In metallurgy, stainless steel, also known as inox steel or inox from French "inoxydable", is defined as a steelalloy with a minimum of 10.5% to 11% chromium content by mass.Stainless steel does not readily corrode, rust or stain with water as ordinary steel does, but despite the name it is not fully stain-proof, most notably under low oxygen, high salinity, or poor circulation environments. It is also called corrosion-resistant steel or CRES when the alloy type and grade are not detailed, particularly in the aviation industry. There are different grades and surface finishes of stainless steel to suit the environment the alloy must endure. Stainless steel is used where both the properties of steel and resistance to corrosion are required. Our Advantage (1): High quality stainless steel tube with reasonable price. (2): Wide excellent experiences with after-sale service. (3): Every process will be checked by responsible QC which insures every product's quality. (4): Professional packing teams which keep every packing safely. (5): Trial order can be done in one week. (6): Samples can be provided as your requirements. We are professional manufacturer of stainless steel products, including stainless steel decorative pipes,industrial stainless welded pipes, special-shaped pipes, stainless steel sheet and etc. Main materials are: 304, 201,202,316,316L,430 and so on.