stainless steel coil stainless steel sheet / plate stainless steel angle stainless flat bar No.4 / HL / BA / Checkered plate stainless steel decoration round pipe stainless steel seamless pipe stainless steel square pipe stainless steel rectangular pipe stainless steel channel

stainless steel sheet / plate

321 stainless steel sheet

Details for 321 material

321 stainless steel is Ni-Cr-Ti-type austenitic stainless steel, its performance is very similar to the 304, but due to the addition of the metal titanium, it has a better intergranular corrosion resistance and high temperature strength. The addition of titanium, making it effective control of the formation of chromium carbide.

Excellent high-temperature stress of 321 stainless steel with a breaking (Stress Rupture) properties and high temperature creep resistance (Creep Resistance) stress mechanical properties are superior to 304 stainless steel.

321 SS is Widely used in the open field machinery applied grain boundary corrosion resistance for high chemical, coal, oil industry, building materials, heat-resistant parts and heat treatment difficult parts: oil combustion exhaust pipes, engine exhaust pipes, boiler shells, heat exchange , a furnace parts, diesel engine muffler parts, boilers and pressure vessels, chemical trucks, expansion joints, pipes and dryer burner spiral welded pipe.


321 Chemical compostion

C(%)Si(%)Mn(%)Cr(%)P(%)S(%)N(%)Ni(%)Cu(%)
≤0.08≤1.00≤2.0017.0-19.0≤0.035≤0.03'---9.0-12.0---


321 Mechanical property

tensile strength
(Mpa)
Yield Strength
(Mpa)
Elongation
(%)
rate of reduction in area
(%)
Density
(g/cm3)
≥520≥205≥40≥507.93

Specification for 321 SS grade

TechnicalThicknessWidthFinishStatus
Cold rolled0.40mm-3.00mmStandard width in China:
1000mm 1219mm 1500mm
Special width:
Based on customer's require.
2B / BA /No.4 / HL 
Mirro etc
sheet / plate / coil 
strip
Hot rolled3.00mm-80.00mm 
or more thick
Standard width in China:
1219mm 1500mm 1800mm 2000mm
Special width:
Based on customer's require.
No.1 plate / coil

Finish processing for 321 material

No.4: Honed with 150-180 grit abrasive belt products. It has better brightness

with discontinuous coarse grain, fine stripes than NO.3. Stainless steel castings

 used for sanding and polishing the surface.

Application for Bathroom, building exterior decoration materials, electrical appliances, 

kitchen equipment and food equipment etc.

HL: Polishing abrasive belt with a suitable size (150 to 320 mesh), so No.4

 generates continuous hairline brushed surface.

Application for Architectural decoration, elevators,building doors,etc.

No.8(Mirror) : Rotary buff polishing, mirror-like surface of the polishing 

surface.

Application for Artists use, decorative etc

BA: No clear criteria. After cold rolling through bright annealing process, 

and to temper rolling products, high surface reflectivity. Or mirror-polished 

surface with a cloth buffing wheel obtained.

Application for mirrors,kitchen equipment etc.


Application for 321 material

321 stainless steel is widely used in anti - grain boundary corrosion demanding chemical, coal, oil industry outdoor machine, heat resistant parts of building materials and heat treatment of difficult parts.Sunch as

oil burning gas pipeline

engine exhaust pipe

boiler shell, heat exchanger, furnace parts Noise components 

diesel engine

boiler pressure vessel

chemical transport vehicles

expansion joint

Spiral welded pipe and combustion furnace pipe and drying machine



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Our company perennial stock stainless steel plate, stainless steel coil as follows: 


Including 201 202 304 309S 310S 316L 304L 321 430 409L 439 2205 and other materials.All of the products are from the domestic large steel mills: ZPSS JISCO LISCO Baosteel TISCO and other places of origin. With first-class quality and a very good price.


The standard size of the inventory: 

Hot rolled technical:  3.0mm-80.00mmx1219mm 1500mm 1800mm 2000mm. 

Cold rolled technical:  0.3mm-6.00mmx1000mm special size can be customized according to customer demand.


Our company also has special surface processing machine:We can process No.4 / HL / Mirror / Colours / checkered plate etc 


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