AISI Type 202

Category SteelClass Stainless steelType Austenitic standardCommon Names Chromium-Manganese-Nickel steelDesignations United States: ASTM A276 , ASTM A314 , ASTM A412 , ASTM A429 , ASTM A473 , ASTM A666 , FED QQ-S-763 , FED QQ-S-766 , FED STD-66 , SAE 30202 , SAE J405 (30202) , UNS S20200CompositionElementWeight %C 0.15 Mn 7.5-10.0 Si 1.00 Cr 17.0-19.0 Ni 4.0-6.0 P 0.06 S 0.03 N 0.25 Mechanical Properties Properties Conditions Density (1000 kg/m3)7.825 Poisson's Ratio 0.27-0.3025 Elastic Modulus (GPa) 190-21025 Tensile Strength (Mpa)515 25 annealed (sheet, stripYield Strength (Mpa)275 Elongation (%)40 Reduction in Area (%) Thermal PropertiesProperties Conditions Thermal Expansion (10-6/C) 17.5 0-100 more Thermal Conductivity (W/m-K) 16.2 100 more Specific Heat (J/kg-K) 500 0-100 Electric PropertiesProperties Conditions Electric Resistivity (10-9W-m) 690 25

200 Series stainless steels Features:~ Lower nickel than 300 series with it being replaced by Manganese~ Thus lower cost than 300 series ~ Similar mechanical & physical properties to 300 series~ Similar fabrication performance to 300 series, including deep-drawing~ Corrosion resistance similar to 430 (i.e. not nearly as good as 300 series)~ High carbon may cause stress corrosion cracking, especially after welding thicker material ~ Non MagneticPerformance Comparison:~ Formability: Similar to 304, better than 430~ Strength: Stronger than 304 (and 430)~ Corrosion Resistance @20 C: Similar to 304, better than 430 but susceptible to stress corrosion cracking / intergranular corrosion especially after welding

Chemical Composition

Chemical Element% PresentCarbon (C)0.0 maxChromium (Cr)16.00 - 18.00Manganese (Mn)6.80 - 8.50Silicon (Si)0.0 maxPhosphorous (P)0.0 maxSulphur (S)0.0 maxNickel (Ni)2.00 - 5.00Nitrogen (N)0.0 - 0.25Iron (Fe)BalanceSee attached page for full chemical analysis and mechanical propertiesProperties

Physical PropertyValueDensity7.80 g/cmThermal Expansion17 x10^-6 /KModulus of Elasticity200 GPaThermal Conductivity15 W/m.KMechanical PropertyValueProof Stress310 Min MPaTensile Strength655 Min MPaElongation A50 mm40 min %See attached page for full mechanical properties. Note that there are some differences in the requirements of AISI 200 series types and the EN standards - The above is taken from AISI. EN 1.4372, the EN equivalent to AISI 201 has a minimum proof of 350 and a tensile range of 750 to 950 whilst minimum elongation is 45%Alloy Designations

AISI 201 stainless steel corresponds to the following specifications:

UNS20100 / EN1.4372 / JIS SUS 201

AISI 201L stainless steel corresponds to the following specifications:

UNS20103 / EN1.4371

AISI 202 stainless steel corresponds to the following specifications:

UNS20200 / EN1.4373

AISI 204C stainless steel corresponds to the following specifications:

UNS20400 / EN1.4597

Supplied Forms

SheetPlateApplications

200 series austenitics are typically used to replace types 304 and 301 as well as Carbon (Chrome-Manganese) Steels mainly for indoor use for low corrosion applications at room temperature

Furniture

Bins

Cookware & Serving Bowls

Window Channel Spacers

Safety Shoes (mid-sole protector)

Deep drawn kitchen equipment e.g. Cookware & Sinks

Hose Clamps

Trailer Frames

Industrial Strapping

Railway Rolling Stock

There is also grade 201LN for welded constructions, structural uses and low temperature applications - Examples include sides & roofs of trains, liquified gas storage vessels, structural members/chassis of railway rolling stock, trucks & trailers, coal handling equipment

Performance Comparison

The 200 series grades perform at a similar level to grades 304 and 301 in low corrosion, mainly indoor applcations at room temperature.

Corrosion Resistance

The 200 series grades perform at a similar level to grades 304 and 301 in low corrosion, mainly indoor applcations at room temperature.

Not recommended for use in Chloride environments.

Heat Resistance

Oxidation resistance is similar to grade 1.4310 (301) up to 840 Centigrade.

Weldability

Reasonable, although sensitive to intergranular corrosion in the heat affected zone where thickness exceeds 6mm.

Post-weld cleaning and passivation is crucial.

Mechanical properties of grade AISI 202Technological properties of grade AISI 202Hardness and heat treatment specification of grade AISI 202Annealing hardnessHBSCold pull hardnessHBSPreheating temperatureQuenching temperatureHolding timeminHardening mediumTemper temperatureAfter tempering hardnessHRCsalt-bath furnacecontrolled atmosphere furnace23526278811911204515air cooling52260Steel plate/Sheetthickness / mmbMPas/MPaSamples from the standard for 50 mm (2 in) 180 of cold bending testlongitudinalhorizontalHot-rolled/Cold rolling:5 - 15052041516182a3.5aNote:(1) listed in the table apex diameter (d), to steel thickness (a) multiples said.(2) in the ASTM A6 standard specified scope can meet any additional conditions.(3) from the standard for 50 mm (2 in).Mechanical properties Mechanische EigenschaftenCaracteristiques mecaniquesReH Minimum yield strength / Mindestwert der oberen Streckgrenze / Limite delasticite minimale Rm Tensile strength / Zugfestigkeit / Resistance a la traction A Minimum elongation / Mindestwert der Bruchdehnung / Allongement minimal J Notch impact test / Kerbschlagbiegeversuch / Essai de flexion par choc AISI 202 steel description:Step Shaft: steel plate/sheet,coil,round bar,flat bar,tube/pipe,Profiled forgingsAISI 202 steel Specifications or Size:

Round bar:Diameter : 1mm-2000mmSquare bar:Size: 50mm * 50mm-600mm *600mmPlate steel/flat bar:Size: Thickness: 0.1mm-800mm Width: 10mm to 1500mmTube/pipe: Size: OD: 6-219mm WT: 1-35 mm.Cold-rolled sheet: Thickness: 2-5mm Width:1000mm Length: 2000mmHot-rolled sheet: Thickness:6-80mm Width: 210-610mmLength: We can supply any length based on the customer's requirement.Forging/hot rolling/ extrusion of steel.Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapesFinished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirementSurface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirementFurnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirement.UTS according to SEP 1921 C/c,D/d,E/e;A388 or GB/T 6402Excellent service for all kinds of industries, with advantages of technologies, equipment and price.We serve you with our honesty, integrity, and professionality.

AISI Type 202 Category SteelClass Stainless steelType Austenitic standardCommon Names Chromium-Manganese-Nickel steelDesignationsUnited States: ASTM A276 , ASTM A314 , ASTM A412 , ASTM A429 , ASTM A473 , ASTM A666 , FED QQ-S-763 , FED QQ-S-766 , FED STD-66 , SAE 30202 , SAE J405 (30202) , UNS S20200Composition ElementWeight %C 0.15 Mn 7.5-10.0 Si 1.00 Cr 17.0-19.0 Ni 4.0-6.0 P 0.06 S 0.03 N 0.25 Mechanical Properties Properties ConditionsT (C)TreatmentDensity (1000 kg/m3) 7.8 25 Poisson's Ratio 0.27-0.30 25 Elastic Modulus (GPa) 190-210 25 Tensile Strength (Mpa) 515 25 annealed (sheet, strip) moreYield Strength (Mpa) 275Elongation (%) 40 Reduction in Area (%) Thermal Properties Properties ConditionsT (C)TreatmentThermal Expansion (10-6/C) 17.5 0-100 more Thermal Conductivity (W/m-K) 16.2 100 more Specific Heat (J/kg-K) 500 0-100 Electric Properties Properties ConditionsT (C)TreatmentElectric Resistivity (10-9W-m)

Chemical composition for AISI Standard stainless steel

TypeChemical CompositionGrade No.CMnPSSiCrNiMoOthersAISI 201