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- Sep 29, 2004
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- 1
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Material Property Data
Stainless Steel 440 C
Specifications
Related Tradenames and Metal Names
Chemistry Data
Welding, Machining/ General Data
Physical Data
Mechanical Data
Links to Related Data
--------------------------------------------------------------------------------
Specifications
The following specifications cover Stainless Steel 440 C
AISI 440C
AMS 5618
AMS 5630
AMS 5880
ASTM A276
ASTM A314
ASTM A473 (Forging - Open Die)
ASTM A493
ASTM A580
DIN 1.4125
QQ S763
UNS S44004
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Property Results
No Related Metal names.
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Chemistry Data : [top]
Carbon 0.95 - 1.2
Chromium 16 - 18
Iron Balance
Manganese 1 max
Molybdenum 0.75 max
Phosphorus 0.04 max
Silicon 1 max
Sulphur 0.03 max
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Principal Design Features This is a high carbon martensitic stainless with moderate corrosion resistance good strength and the ability to obtain and keep excellent hardness (Rc 60) and wear resistance.
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Applications Ball bearings and races, gage blocks, molds and dies, cutlery, valve components, knives and measuring instruments.
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Machinability Best machined in the annealed condition. Tough, stringy chips can be best handled by the use of chip breakers. Carbide or ceramic tooling is recommended.
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Welding This alloy is not commonly welded due to its tendency to air harden. If it must be welded, preheat to 500 F (260 C) and post weld treat at 1350-1400 F (732-760 C) for 6 hours followed by a slow furnace cooling to avoid cracking. Use similar filler metal and high heat inputs during operations.
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Hot Working Pre-heat to 1400 F (760 C), then bring slowly up to 1900-2200 F (1038-1204 C)before proceeding. Do not work this material below 1700 F (927 C). Cool material slowly after working and once at room temperature, anneal fully.
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Cold Working This alloy is considered only slightly cold workable by common practices.
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Annealing 1550-1600 F (843-871 C), followed by very slow furnace cooling.
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Tempering For maximum properties, soak at 300 F (148 C). Maximum obtainable hardness is RC 60.
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Hardening Bring the material slowly up to 1400 F (760 C), then on to a soak temperature of 1850 F (1010 C), air or oil cool.
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Physical Data : [top]
Density (lb / cu. in.) 0.275
Specific Gravity 7.63
Specific Heat (Btu/lb/Deg F - [32-212 Deg F]) 0.11
Electrical Resistivity (microhm-cm (at 68 Deg F)) 360
Melting Point (Deg F) 2700
Modulus of Elasticity Tension 29
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Mechanical Data : [top]
There is no Mechnical data available for this grade.
--------------------------------------------------------------------------------
[top]
Nickel - www.nidi.org
Copper - www.copper.org
Titanium - www.titanium.org
Steel Lynx - www.mlc.lib.mi.us/~stewarca/steelynx.html
Material Property Data
Stainless Steel 440 C
Specifications
Related Tradenames and Metal Names
Chemistry Data
Welding, Machining/ General Data
Physical Data
Mechanical Data
Links to Related Data
--------------------------------------------------------------------------------
Specifications
The following specifications cover Stainless Steel 440 C
AISI 440C
AMS 5618
AMS 5630
AMS 5880
ASTM A276
ASTM A314
ASTM A473 (Forging - Open Die)
ASTM A493
ASTM A580
DIN 1.4125
QQ S763
UNS S44004
--------------------------------------------------------------------------------
Property Results
No Related Metal names.
--------------------------------------------------------------------------------
Chemistry Data : [top]
Carbon 0.95 - 1.2
Chromium 16 - 18
Iron Balance
Manganese 1 max
Molybdenum 0.75 max
Phosphorus 0.04 max
Silicon 1 max
Sulphur 0.03 max
--------------------------------------------------------------------------------
Principal Design Features This is a high carbon martensitic stainless with moderate corrosion resistance good strength and the ability to obtain and keep excellent hardness (Rc 60) and wear resistance.
--------------------------------------------------------------------------------
Applications Ball bearings and races, gage blocks, molds and dies, cutlery, valve components, knives and measuring instruments.
--------------------------------------------------------------------------------
Machinability Best machined in the annealed condition. Tough, stringy chips can be best handled by the use of chip breakers. Carbide or ceramic tooling is recommended.
--------------------------------------------------------------------------------
Welding This alloy is not commonly welded due to its tendency to air harden. If it must be welded, preheat to 500 F (260 C) and post weld treat at 1350-1400 F (732-760 C) for 6 hours followed by a slow furnace cooling to avoid cracking. Use similar filler metal and high heat inputs during operations.
--------------------------------------------------------------------------------
Hot Working Pre-heat to 1400 F (760 C), then bring slowly up to 1900-2200 F (1038-1204 C)before proceeding. Do not work this material below 1700 F (927 C). Cool material slowly after working and once at room temperature, anneal fully.
--------------------------------------------------------------------------------
Cold Working This alloy is considered only slightly cold workable by common practices.
--------------------------------------------------------------------------------
Annealing 1550-1600 F (843-871 C), followed by very slow furnace cooling.
--------------------------------------------------------------------------------
Tempering For maximum properties, soak at 300 F (148 C). Maximum obtainable hardness is RC 60.
--------------------------------------------------------------------------------
Hardening Bring the material slowly up to 1400 F (760 C), then on to a soak temperature of 1850 F (1010 C), air or oil cool.
--------------------------------------------------------------------------------
Physical Data : [top]
Density (lb / cu. in.) 0.275
Specific Gravity 7.63
Specific Heat (Btu/lb/Deg F - [32-212 Deg F]) 0.11
Electrical Resistivity (microhm-cm (at 68 Deg F)) 360
Melting Point (Deg F) 2700
Modulus of Elasticity Tension 29
--------------------------------------------------------------------------------
Mechanical Data : [top]
There is no Mechnical data available for this grade.
--------------------------------------------------------------------------------
[top]
Nickel - www.nidi.org
Copper - www.copper.org
Titanium - www.titanium.org
Steel Lynx - www.mlc.lib.mi.us/~stewarca/steelynx.html
