| Typical Applications
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Used for applications requiring moderate
corrosion resistance and high mechanical properties
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Applications include valve and pump
parts, bolts and other fasteners, heat control shafts,
flat springs, knives and table flatware, gage parts,
hand tools, screens, spindles and mining machinery
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Machinability
Type 410 has fair machinability. It has somewhat better
machining characteristics than austenitic stainless steels,
having a rating of about 55% compared to Bessemer screw
stock (AISI B 1112). Sulfurized cutting oils are used
for most operations.
Weldability
Type 410 has good weldability. It is readily joined by
fusion and resistance welding methods. Type 410 filler
rod should be used for weldments that will be annealed
or hardened and tempered after welding. Type 309 or 310
filler rod should be used to obtain maximum weld metal
ductility in the as-welded condition. Ductility of fusion
welds can be improved by annealing at 1450-1500° F
and slow cooling. |
Formability
Type 410 has reasonably good cold working properties
and can be moderately drawn and formed. Severe working
should be done hot with bars at 1350-1500° F.
Corrosion Resistance
Type 410 provides a good corrosion resistance to air,
water and some chemicals. Its resistance to nitric acid,
concentrated sulfuric acid, dilute acetic acid and naphtha
is satisfactory. It also provides good resistance
to food acids.
Forgeability
Type 410 can be readily forged at 2300° F. Preheat
steel to 1800° F for 2 hours, raise rapidly to 2300°
F, soak for 4 to 6 hours, forge, slow cool.
Heat Treating
ANNEALING: Heat slowly to 1550-1650° F cool to 1100°
F in furnace, air cool.
PROCESS ANNEALING: Heat to 1350-1450° F, air cool.
HARDENING: Heat to 1700-1800° F, oil quench.
Follow by stress-relief or temper.
TEMPERING: Heat to 1100-1400°F for 1 to 4 hours, air
cool. |
