Stainless Steel Ball
Simple Information

Material 201 304 316 420C 440C
Metric Dimensions .4mm – 100mm
Inch Measurement 1/sixty four” – 4″
Precision Grade G100 G200 G500 G1000 G2000

Mechanical Houses

  201 304 316 420C 440C
7.85 seven.ninety five seven.ninety five seven.70 7.75
25 – 39 ten – 39 ten – 39 52 – sixty 57 – sixty five
Tensile Power
one hundred – one hundred eighty 72 – 188 eighty – one hundred eighty 250 – 275 275 – 290
Young’s Modulus
200 two hundred 200 205 210

Chemical Composition

  201 304 316 420C 440C
%C .one hundred fifty Max .080 Max .080 Max .43 – .50 .95 – one.20
%Si one.00 Max .seventy five Max 1.00 Max one.00 Max one.00 Max
%Mn 5.50 – 7.fifty two.00 Max 2.00 Max one.00 Max 1.00 Max
%P .060 Max .045 Max .045 Max .040 Max .040 Max
%S .030 Max .030 Max .030 Max .030 Max .030 Max
%Cr sixteen.00 – 18.00 18.00 – 20.00 16.00 – 18.00 twelve.fifty – fourteen.fifty sixteen.00 – 18.00
%Ni 3.50 – 5.50 eight.00 – 10.fifty ten.00 – fourteen.00
%N .250 Max .one hundred Max
%Mo 2.00 – three.00 .seventy five Max


  201 304 316 420C 440C
United states AISI201 AISI304 AISI316 AISI420C AISI440C
JAP SUS201 SUS304 SUS316 SUS440C
British isles 201S01 304S15 316S16
CHN 1Cr17Mn6Ni5N 0Cr18Ni9 0Cr17Ni12Mo2 4Cr13 9Cr18Mo
RUS 14Ch18N4G4L 08KH18N10 08KH16N11M3 40Kh13 95X18
ITA X5CrNi18-ten X5CrNiMo1712 X46Cr13 X105CrMo17
FRA Z12CMN17-07Az Z7CN18-09 Z6CND17.eleven Z34C14 Z100CD17
GER one.4372 one.4301 1.4401 1.4034 1.4125

201: Cr-Mn stainless steel balls, with properties comparable to AISI 302/304 balls (slightly greater mechanical characteristics). Balls are supplied in the passivated situation.

304: Unhardened austenitc stainless steel balls, they show good mechanical traits, toughness and corrosion resistance. AISI 304L offers reduced carbon articles, AISI 302 much better mechanical qualities. Balls are supplied in the passivated issue.

316: Austenitic stainless metal balls with larger corrosion resistance than AISI 304 balls. They present great toughness. AISI 316L has a decrease carbon content (optimum ,030%). Balls are supplied in the passivated situation.

420C: Martensitic hardened stainless steel balls, they attribute excellent hardness, corrosion resistance, put on and abrasion resistance. Balls are provided in the passivated issue.

440C: Martensitic hardened stainless metal balls, they function remarkable hardness, wear resistance, area ending, slim dimensional tolerances. For that purpose this variety of metal is frequently employed in precision devices. Balls are presented in the passivated problem.

Corrosion Resistance
201: Similar to the corrosion resistance of AISI 302/304 components.
304: Quite excellent corrosion resistance with regard to natural substances, oxidating remedies, foodstuff, sterilizing answers. Very good resistance with respect to atmospheric corrosion and dyes. They are subjected to pitting and crevice corrosion in presence of scorching chloride answers and to pressure corrosion when temperature exceeds 60°C. They do not resist to sulfuric acid solutions. AISI 302 exhibits somewhat very best corrosion resistance with respect to AISI 304/304L stainless steels.

316: Really great corrosion resistance with regard to organic and natural substances, very good resistance to many robust acids (acetic, phosphoric, sulphuric acid) and on sea water. They are subjected to pitting and crevice corrosion in existence of sizzling chloride answers and to stress corrosion when temperature exceeds 60°C. They do not resist in contact with hydrochloric and hydrofluoric acids, aqua regia, iron and magnesium chlorides.

420C: Excellent corrosion resistance in industrial atmosphere, freshwater, steam, alcool, ammonium, several oilfield goods and natural compounds, dairy merchandise, mild acid environments. Fairish in foodstuff and alkaline answers. Reasonable in salt ambiance. It does not resist in contact with sea water and powerful acids (even if diluted).

440C: The materials resists to corrosion in speak to with freshwater, steam, oil, petrol, alcohol. They are subjected to pitting corrosion in sea water environments. Very poor corrosion resistance in acid environments.

201: Particular bearings, automotive factors, switches, die casting products. They are extensively utilized in the digital sector.

304: Unique bearings and pumps, aerosol pumps, gardening and household sprayers, perfume miniature pumps, seams, health-related software valves, agricultural backpack sprayers. They are used in foodstuff, aerospace and military sector.

316: Specific bearings, pumps and valves, aerosol and dispenser sprayers. Utilised in the foodstuff, paper, chemical, rubber, armed forces, textile sector. Applications in photographic devices, healthcare instruments, fast couplings, recirculating balls, ink cartridges, jewels.

420C: Particular bearings, anti-friction bearings, specific pumps, recirculating balls, lighters, pens, automotive seatbelts & elements.

440C: Precision bearings, anti-friction bearings, specific valves, conveyor belts and rollers, ballpoint pens. They are employed in foodstuff, health care devices, quick couplings, recirculating ball bearings, knotting units, oil refinery units.

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