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AISI 440C (1.4125, UNS S44004, X105CrMo17) Forged/Forging Round Bars

Price $2.00
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Shipping From Jiangsu, China
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Model NO.:
AISI 440C
Processing Object:
Metal
Molding Style:
Forging
Molding Technics:
Forging
Application:
Machinery Parts
Material:
SS
Heat Treatment:
Quenching
Surface Treatment:
Polishing
Forging Tolerance:
+/-0.1mm
Standard:
AISI
Certification:
CE, ISO 9001:2008
Material Grade of Forging Rings:
AISI 440c, 1.4125
Trademark:
LY
Transport Package:
Wooden or Steel Frame Crate Packing
Specification:
CE
Origin:
Jiangyin
HS Code:
722840000
Product Description
We are professional AISI 440C(1.4125, UNS S44004,X105CrMo17)Forged/Forging Round Bars factory from china
440C is a high carbon straight chromium high hardenability martensitic stainless steel, generally supplied in the annealed condition with a maximum Brinell hardness of 269 (Rc29) or annealed and cold drawn with a maximum Brinell hardness of 285 (Rc31).Characterised by good corrosion resistance in mild domestic and industrial environments, including fresh water, organic materials, mild acids, various petroleum products, coupled with extreme high strength, hardness and wear resistance when in the hardened and tempered condition. 440C due to its excellent hardenability is capable of being through hardened up to Rc60 depending upon carbon content and section size. Small sections can be air cooled and quite large sections oil quenched for maximum through hardness.Used for parts requiring a combination of excellent wear resistance, plus reasonable corrosion resistance. Typical applications are: Ball Bearings and Races, Bushings, Cutlery, Chisels, Knife Blades, Pump Parts, Surgical Instruments, Valve Seats etc.

Chemical Composition
 Min. %Max %
Carbon0.951.20
Silicon01.00
Manganese01.00
*Nickel01.00
Chromium16.0018.00
Molybdenum0.000.75
Phosphorous00.04
Sulphur00.03
*Nickel addition optional.
Mechanical Property Requirements For Material in the Annealed Condition to 1) AS2837 - 1986 440C and 2) ASTM A276-98b 440C
SpecificationAS2837-1986 440C 
Finish  
Brinell Hardness269 Max 
Capable of attaining Rc59 minimum in 10mm test bar oil quenched from 1010oC - 1070oC.
SpecifricationASTM A276-98b 440C 
FinishHot FinishedCold Finished
Brinell Hardness269 Max285 Max
Capable of attaining Rc58 minimum in 9.50mm test bar air cooled 1020oC.
Typical Mechanical Properties At Room Temperature in the Annealed Condition (AS Supplied)
Tensile Strength Mpa785
Yield Strength Mpa420
Elongation in 50mm %15
Impact Charpy J6
HardnessHB240
Rc24
Typical Mechanical Properties At Room Temperature - Hardened By Oil Quench at 1030oC and Tempered as Indicated
Tempering Temperature oC150200250300350400
Tensile Strengt Mpa205020201980189018201780
Yield Strength Mpa193018961845176016751635
Elongation in 50mm %444444
Impact Charpy J999999
Hardness Rc605957565656
Section Size 25mm
High tensile strength, high yield strength and high hardness but low impact properties.

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