3/4"(.750") x 12"+ 440C Stainless Steel Round Bar Rod

Description

440C i
s a
high carbon martensitic stainless steel
, and is the highest carbon content from 400 stainless steel series. It is usually heat treated
to reach hardness of 58-60 HRC.
Hardening range is between 1850° and 1950° F. Quench large sections in oil. Small sections can be quenched in air. Temper to required hardness.
Full annealing range is between 1550° and 1650° F. Cool slowly in furnace. Low annealing range is between 1550° and 1650° F. Cool slowly in furnace.
Machinability is rated at 40% of B1112. Average cutting speed 65 ft/min. 440C has poor welding properties due to high carbon content. 440C has poor forming and stamping properties. 440C can be forged between 1900°-2100° F. Do not forge below 1650° F. Cool slowly.
It is a bearing steel, and used in rolling contact stainless bearings, e.g. ball and roller bearings, valve parts, surgical
instruments
,
nozzles,
wear parts of pumps, mold inserts,
chisels, and
knife blades.
440C resists scaling up to 1200° F in continuous service and resists corrosion from fresh water steam, crude oil, gasoline, and resists staining from fruit and food acids. Maximum resistance is obtained by hardening and polishing
Material: Stainless Steel
Alloy: 440C
Shape: Round Rod
Diameter: 3/4 inch (.75")
Length: 12+ inches
Number of Pieces: 1
Carbon, C
0.60 - 0.75 %
0.60 - 0.75 %
Chromium, Cr
16 - 18 %
16 - 18 %
Iron, Fe
78.4 - 83.4 %
78.4 - 83.4 %
as balance
Manganese, Mn
<= 1.0 %
<= 1.0 %
Molybdenum, Mo
<= 0.75 %
<= 0.75 %
Phosphorous, P
<= 0.040 %
<= 0.040 %
Silicon, Si
<= 1.0 %
<= 1.0 %
Sulfur, S
<= 0.030 %
<= 0.030 %