AISI 440 440C Stainless Steel Balls For Water Nozzle 7.938MM 5/16 Inch G1000
Brand Name:JN
Certification:SGS ISO
Model Number:7.938MM 5/16
Minimum Order Quantity:500kg
Delivery Time:7-15 days
Payment Terms:T/T, Western Union, MoneyGram,Paypal, L/C, D/A, D/P
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XUESHAN ROAD,LICHENG DISTRICT ,JINAN CITY ,SHANDONG ,CHINA
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Product Details
AISI 440 440C Stainless Steel Balls For Water Nozzle 7.938MM 5/16
Inch G1000
440 Stainless Steel balls are a martenistic-type stainless steel
which is used
extensively in steel ball bearing applications that require
hardness, dimensional stability,
corrosion resistance and toughness. 440 Stainless Steel is also
used for corrosion-resistant ball
and check valves. 440 ball are resistant to corrosion from fresh
water, steam, crude oil, gasoline,
perspiration, alcohol, blood and food stuffs. Maximum resistance to
corrosion and
tarnishing is only achieved when 440 is fully hardened and surfaces
are polished to a high luster.
Chemical Composition
%C | %Si | %Mn | %P | %S | %Cr | %Mo |
|---|---|---|---|---|---|---|
0.95-1.20 | 1.00 max | 1.00 max | 0.040 max | 0.030 max | 16.00-18.00 | 0.75 max |
International standards
ITA | USA | GER | FRA | UK | RUS | CHN | JAP |
|---|---|---|---|---|---|---|---|
X 105CrMo17 | 440C | 1.4125 | Z100CD17 | - | 95X18 | 9Cr18Mo | SUS440C |
Physical / mechanical / thermal / electric / magnetic properties
Property | Symbol | U.o.M. | Type | Notes | Values |
|---|---|---|---|---|---|
Density | δ | [g/cm3] | Physical | Room temp. | 7.70 |
Young's modulus | E | [GPa] | Mechanical | - | 210 |
Specific heat | c | [J/kg-K] | Thermal | Room temp. | 450 |
Coefficient of linear thermal expansion | α | [10^-6/ºC] | Thermal | (ΔT=0-100°C) | 10.2 |
Thermal conductivity | λ | [W/(m·K)] | Thermal | Room temp. | 19.6 |
Electric resistivity | ρ | [Ω*m*10^-9] | Electric | - | 680 |
Relative magnetic permeability | µ | - | Magnetic | Not hardened | > 700 |
Technical data
Property | Type | U.o.M. | Values | U.o.M. | Values |
|---|---|---|---|---|---|
Hardness | Mechanical | [HRC] | 57 - 65 | - | - |
Ultimate tensile strength | Mechanical | [MPa] | 1900 - 2000 | [psix10^3] | 275 - 290 |
Service temperature | Thermal | [ºC] | 0 / 400 | [ºF] | 32 - 752 |
Corrosion Resistance |
|---|
The material resists to corrosion in contact with freshwater,
steam, oil, petrol, alcohol. They are subjected to pitting
corrosion in sea water environments. Poor corrosion resistance in
acid environments. |
AISI 440 440C Stainless Steel Balls For Water Nozzle 7.938MM 5/16 Inch G1000
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