Position:Home > Steel > Alloy Steel

AISI 440B

 We are professional AISI 440B 440 B Grade 440B SUS 440B SUS440B Grade Forged forging Steel Round Bars Rods Square rectangular rectangle Flat Hex Bars,AISI 440B 440 B Grade 440B SUS 440B SUS440B Forged Forging Steel Hollow Bars Forged Forging Sleeves Bushes Bushing Pipes Piping tubes tubings barrels Casing Cases Shells cylinders hubs housings,AISI 440B 440 B Grade 440B SUS 440B SUS440B Forged Forging Steel Rings Seamless Rolled Steel Rings ,AISI 440B 440 B Grade 440B SUS 440B SUS440B Forged Forging Steel Blocks Discs Disks Plates,AISI 440B 440 B Grade 440B SUS 440B SUS440B forged forging shafts Ball bearings and races,gage blocks,molds and dies,cutlery,valve components,Valve Seats,valve stems,valve body bodies,valve bonnets,valve seat rings,knives and measuring instruments.Pump Parts, Pivot pins,Surgical Instruments,Valve Seats,Nozzles,other AISI 440B 440 B Grade 440B SUS 440B SUS440B forged forging forge Steel parts forged forging pieces forged forging steel components material from china


Chemical compostion 
 

 

 

Carbon

 

0.75 - 0.95

Chromium

 

16 - 18

Iron

 

Balance

Manganese

 

1 max

Molybdenum

 

0.75 max

Phosphorus

 

0.04 max

Silicon

 

1 max

Sulphur

 

0.03 max

 
Corrosion Resistance
This grade is used in the hardened and tempered condition for a good corrosion resistance. For optimum, corrosion resistance, surfaces must be free of scale and foreign particles.
 
Heat Treatment
Soft annealing: 750-800ºC
Slow furnace cooling (2-4 hours)
Hardening: 1000-1080ºC
Max obtainable hardness 57-59 HRC
 
Cutting Rate
20-35m/min (approx value, depending on the lubrication oil, the cutting tools, the shape of parts)
Hits:  UpdateTime:2017-05-29 09:29:46  【Printing】  【Close
Previous:UNS S44003
Next:1.4112