North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Material Grade Of Forging Rings:
AISI 440c, 1.4125
Processing Object:
Metal
Molding Style:
Forging
Molding Technics:
Forging
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 %
Carbon
0.95
1.20
Silicon
0
1.00
Manganese
0
1.00
*Nickel
0
1.00
Chromium
16.00
18.00
Molybdenum
0.00
0.75
Phosphorous
0
0.04
Sulphur
0
0.03
*Nickel addition optional.
Mechanical Property Requirements For Material in the Annealed Condition to 1) AS2837 - 1986 440C and 2) ASTM A276-98b 440C
Specification
AS2837-1986 440C
Finish
Brinell Hardness
269 Max
Capable of attaining Rc59 minimum in 10mm test bar oil quenched from 1010oC - 1070oC.
Specifrication
ASTM A276-98b 440C
Finish
Hot Finished
Cold Finished
Brinell Hardness
269 Max
285 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 Mpa
785
Yield Strength Mpa
420
Elongation in 50mm %
15
Impact Charpy J
6
Hardness
HB
240
Rc
24
Typical Mechanical Properties At Room Temperature - Hardened By Oil Quench at 1030oC and Tempered as Indicated
Tempering Temperature oC
150
200
250
300
350
400
Tensile Strengt Mpa
2050
2020
1980
1890
1820
1780
Yield Strength Mpa
1930
1896
1845
1760
1675
1635
Elongation in 50mm %
4
4
4
4
4
4
Impact Charpy J
9
9
9
9
9
9
Hardness Rc
60
59
57
56
56
56
Section Size 25mm High tensile strength, high yield strength and high hardness but low impact properties.
Jiangsu Liangyi Co.,Limited is one professonal special alloy material supplier from China,
Since establised in 1997, our products has been exported to many countries, such as American, European countries, Asian countries, and so on.Our products are widely used in petroleum and chemical industry, power generation, shipbuilding, heavy machinery, Oil&Gas applications:Christmas trees, wellhead components, spools, , riser applications, pressure vessel, and so on.
We own one workshop of more than 8000 square meters, with a vacuum melting, electroslag remelting, forging,Casting,heat treatment, machining, quality inspecting machines and a full-line of production system.
Our company mainly produces materials in:Carbon&alloy steel, Tool&Die Steel,Stainless steel, Duplex Stainless Steel, Nickel alloy, Super Alloy,Cobalt Based alloy,Heat Resistant steel,Invar alloy ,low Expansion Alloy,Soft Magnetic Alloy and so on
We could produce these material in Forging parts,Forged Rings,Rolled Rings,Bars,flanges, Casting Parts,Pipe Fittings,seamless pipe,Weled Pipes,Plates,Sheets,Strips,Coils Wires,spring ,Fasteners,Machining Parts, and so on
Following is the steel grade that we could do
