321Stainless steel

321 Stainless steel

Type 321 stainless steel is similar to Type 304 stainless steel, however, it contains a Titanium addition of at least five times the carbon content. This addition is made to reduce or eliminate chromium carbide precipitation - resulting from welding or exposure to high temperatures. Maximum stabilization is accomplished by annealing between 1750° and 1850° F. Type 321 has extensive use in aircraft parts, such as exhaust systems where operating temperatures are higher than 800° F. and where corrosive conditions are not too severe; also because of its resistance to scaling and vibration fatigue.

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321 Stainless steel chemical composition

C	Si	Mn	P	S	Ni	Cr	others
≤0.08	≤1.00	≤2.00	≤0.045	≤0.030	9.00-12.00	17.00-19.00	Ti 5C-0.70

321 Stainless steel Mechanical Properties

Mechanical Property					Hardness Value
Sample state	Rm MPa	Rp0.2 MPa	A %	Z %	HBW	HRB	HV
solid solution	≥520	≥205	≥40	≥50	≤187	≤90	≤200

321 Stainless steel equal standard

GB/T1220	ISO/TS15510	TOCT 5632	JIS G4403	EN 10088-1
06Cr18Ni11Ti	X6CrNiTi18-10	08X18H10T	SUS321	6CrNiTi18-10

Cold rolled 321 stainless steel coil

ASTM A959 321 (S32100) is an austenitic stainless steel. These properties are specified for flat rolled product (plate, sheet and coil) in ASTM A240/A240M. Similar but not necessarily identical properties are specified for other products such as pipe and bar in their respective specifications.

Hot rolled 321 stainless steel coil

Cold rolled 321 stainless steel coil: The thickness are max 3mm

321 Hot rolled steel plate

Hot rolled 321 stainless steel coil ; the common size Thickness are: 2.5-14mm.

321 seamless steel pipe

For seamless steel pipe, the common diameter : 21-630mm, Wall thickness for:4-500mm.

321 seamless steel pipe

321 Stainless steel pipe。 thickness：21-630mm, Wall thickness:4-500mm.

321 stainless round bar

321 stainless round bar common size: 5.5-250mm

321 Grades comparison

Grades 321 and 347 are the basic austenitic 18/8 steel (Grade 304) stabilised by Titanium (321) or Niobium (347) additions. These grades are used because they are not sensitive to intergranular corrosion after heating within the carbide precipitation range of 425-850°C. Grade 321 is the grade of choice for applications in the temperature range of up to about 900°C, combining high strength, resistance to scaling and phase stability with resistance to subsequent aqueous corrosion.

321 Stainless steel Application

1.Aircraft Exhaust Stacks and Manifolds
2.Chemical Processing Equipment
3.Welded Equipment
4.Jet Engine Parts
5.Aircraft exhaust manifolds
6.Expansion joints,Bellows
7.Furnace parts, Heating element tubing
8.Heat Exchangers
9.Woven or welded screens for high temperature mineral processing
10.Spiral Welded tube for burner pipes and flues

2B : Those finished, after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster.

BA : Those processed with bright heat treatment after cold rolling.

NO.3 : Those finished by polishing with No.100 to No.120 abrasives specified in JIS R6001.

NO.4 : Those finished by polishing with No.150 to No.180 abrasives specified in JIS R6001.

HL : Those finished polishing so as to give continuous polishing streaks by using abrasive of suitable grain size.

NO.1 : The surface finished by heat treatment and pickling or processes corresponding there to after hot rolling.

2B
BA
NO.4
NO.1
NO.3
HL

321 Stainless steel Packing

1 . Packaging material: kraft paper, waterproof paper, seaworthy packing, wooden or steel support and so on.
2 . Package purpose: to protect the product during the transportation, shipment or flight.

321 Stainless steel case

In 2012, One of our customer coming from OrisOxin Co. in Iran come to visit our company. They are mainly for chemical processing equipment. They want 321 Stainless steel for 300 ton for their production. But the price are not good for their cost. With the help of technical person from bebon, they know much about the mechanical of this material， Which is the best choice the equipment. They at last choose our company as the supplier. They choose bebon not only for the low price and best quality but also for our professional service.

BEBON is specialized stainless steel tube,stainless steel bar,stainless steel sheet,stainless steel plates,stainless steel Strip. Based on the domestic rich product resources and professional research on international market, BEBON'service has already spread many countries in Europe , America, Southeast Asia, Middle East, South America, Africa, and so on .

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