AISI 321 Bolts
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We produce AISI 321 bolts,321 bolts,AISI 321 bolting,AISI 321 Hex Head Bolts,AISI 321 studbolt,AISI 321 Heavy Hex head bolts,AISI 321 Stud Bolts,AISI 321 Anchor Bolt,AISI 321 Eye Bolt,AISI 321 U Bolts,AISI 321 Structural Bolts,AISI 321 Step Bolt,AISI 321 Flange Bolt,321 Screw Thread Eye Bolt,321 Head Plow Bolts,321 Square Head Bolts,321 Hexagonal Bolts,321 J-Bolts,AISI 321 Bent Eye Bolts,AISI 321 Elevator Bolts,AISI 321 Step Bolts,AISI 321 Tap Bolts,AISI 321 Tension Control Bolts,AISI 321 Shoulder Bolt,321 bent bolts,AISI 321 headed bolts,321 Heavy Hex head bolts,AISI 321 Timber Bolts,AISI 321 Lag Bolts,AISI 321 Timber Bolts,AISI 321 Hanger Bolt,AISI 321 Button Head Bolts,321 Tie Bolt,AISI 321 Hexagon Bolt,AISI 321 Hexagon Cap Screw Bolt from china

The type of AISI 321 anchor bolts that we could do is AISI 321 straight anchor bolts, bent anchor bolts and headed anchor bolts

The type of AISI 321 bent bolts that we could do is 321 bent anchor bolts, u-bolts, square bent u-bolts, j-bolts, bent tie bolts, bent check bolts, bent hook rail bolts, bent I-bolts, and custom special bent bolts.

The type of AISI 321 headed bolts that we could do is AISI 321 Cap Screws head bolts,Hex head bolts,Heavy Hex head bolts,Lag Bolts,Square Head bolts,Step Bolts,Dome Head bolts,Carriage boltds,Socket Head Bolts

We could produce AISI 321 non-standard and speciality large bolts from 1/4” all the way to 4” and in metric sizes from M8 to M100.

The surface finish of AISI 321 bolts that we could do is as follows:Hot Dip Galvanized,Mechanical Galvanized,Zinc plated (Clear),Yellow Zinc plated,Cadmium plated,Yellow Cadmium plated,Blue Xylan or Blue Teflon,Green Xylan or Green Teflon.Black Oxide,Plain surface,Ni-plated, Passivated, Tin-plated, Sandblast and Anodize, Polish, Eletro Painting, Chrome plated etc.

In order to control the quality of AISI 321 bolts, the material of AISI 321 bars is melted by ESR+VIR or VIM+ESR+VAR and is produced as the standard of ASTM B462 and ASTM B473

AISI 321 exhibits strength characteristics superior to those of 304 stainless.

The chemical composition of 321 bolts is as follows


AISI 321







max (S)


max (Si)



17.0 – 20.0


9.0 – 12.0


0.1 Max.




Ti=5(C) to 0.70%

The mechanical property of AISI 321 bolts is as follows








Elongation(min.) %

AISI 321






As per heat treatment of AISI 321 bolts, we could do, solution and ageing treatment, Tempering, Hardening, Spheroidizing, Stress Relieving as per the requirement of the clients

AISI 321 bolts has been widely used in Refineries,Gas Processing,Off-Shore Oil Drilling Companies,Petrochemicals,Hydro-Carbon,Fertilizers,Power Generation,Specialty Chemicals,Pharmaceuticals

Drugs,Steel,Cement,Pesticides,General Piping,Construction,Engineering and so on

In order to control the quality of AISI 321 bolts, We could do Hardness Testing,Proof load testing,Corrosion testing,Impact testing,Tensile strength tests,Finished product tests,Chemical analysis tests,CHARPY tests as per the requirement of the clients

Our AISI 321 bolts has been 100% ultrasonic test according to EN102768-3, SA388, Sep 1921  etc

We could supply AISI 321 bolt material certificate as per the standard of EN10204-3.1 or EN10204-3.2 of third party(like GL,DNV,TUV,BV and so on)

Please sned us the size or drawing of AISI 321 bolts, we are glad to quote the best price for your side.

Except AISI 321 bolts,we also could produce AISI 321 flanges,AISI 321 plates,AISI 321 fasteners,AISI 321 bars,AISI 321 pipe fittings,AISI 321 pipes,AISI 321 tubes,AISI 321 springs