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321 stainless is a titanium stabilized grade commonly used for service in the 1000-1600°F temperature range. For service temperatures up to about 1600°F, a stabilizing treatment at 1550-1650°F, air cool, may be used to provide optimum resistance to intergranular corrosion and to polythionic acid stress corrosion cracking.
321 stainless is readily welded by all common methods including submerged arc. Appropriate weld fillers are AWS ER347 bare wire and E347 covered electrodes. 321 stainless is similar in machinability to 304 stainless steel with a machinability rating of 45% relative to AISI B1112.
Chemical Composition (wt%)
Element
321
Carbon
0.08
Chromium
17.0-19.0
Nickel
9.0-12.0
Manganese
2.00
Silicon
0.75
Nitrogen
0.10
Phosphorus
0.045
Sulfur
0.030
Titanium
5(C+N) min / 0.70 max
* Maximum, unless range is indicated
Mechanical Properties
Property
321
Yield Strength, min. (ksi)
30
Tensile Strength, min. (ksi)
75
Elongation, min. (%)
40
Hardness, max. (Rb)
95
Typical Applications
Aircraft piston engine manifolds
Expansion joints
Firearms production
Thermal oxidizers
Refinery equipment
High temperature chemical process equipment
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2012
Total Annual:
500,000,000-800,000,000
Employee Number:
100~200
Ecer Certification:
Verified Supplier
Company Overview :
The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation.
The subordinate processing plant has 6 sets of medium frequency h... Company Overview :
The company has an indoor warehouse of 5000 square meters and an open warehouse of 4000 square meters, which can fully meet the temporary turnover and phased storage of customers' steel pipe reservation.
The subordinate processing plant has 6 sets of medium frequency h...