AISI 309 Bolts
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We produce AISI 309 bolts,309 bolts,AISI 309 bolting,AISI 309 Hex Head Bolts,AISI 309 studbolt,AISI 309 Heavy Hex head bolts,AISI 309 Stud Bolts,AISI 309 Anchor Bolt,AISI 309 Eye Bolt,AISI 309 U Bolts,AISI 309 Structural Bolts,AISI 309 Step Bolt,AISI 309 Flange Bolt,309 Screw Thread Eye Bolt,309 Head Plow Bolts,309 Square Head Bolts,309 Hexagonal Bolts,309 J-Bolts,AISI 309 Bent Eye Bolts,AISI 309 Elevator Bolts,AISI 309 Step Bolts,AISI 309 Tap Bolts,AISI 309 Tension Control Bolts,AISI 309 Shoulder Bolt,309 bent bolts,AISI 309 headed bolts,309 Heavy Hex head bolts,AISI 309 Timber Bolts,AISI 309 Lag Bolts,AISI 309 Timber Bolts,AISI 309 Hanger Bolt,AISI 309 Button Head Bolts,309 Tie Bolt,AISI 309 Hexagon Bolt,AISI 309 Hexagon Cap Screw Bolt from china

The type of AISI 309 anchor bolts that we could do is AISI 309 straight anchor bolts, bent anchor bolts and headed anchor bolts

The type of AISI 309 bent bolts that we could do is 309 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 309 headed bolts that we could do is AISI 309 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 309 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 309 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 309 bolts, the material of AISI 309 bars is melted by ESR+VIR or VIM+ESR+VAR and is produced as the standard of ASTM B462 and ASTM B473

AISI 309 is superior to 304 stainless in both strength and corrosion resistance.

The chemical composition of 309 bolts is as follows

Chemical  Composition

Percent %


 0.20 max
 1.00 max
 2.00 max
 0.045 max
 0.030 max

The mechanical property of AISI 309 bolts is as follows



Tensile  strength

89900 psi

Yield  strength (@ strain 0.200%)

45000 psi

Elongation  at break (in 50 mm)


Hardness,  Brinell


Hardness,  Rockwell B


Hardness,  Vickers (converted from Rockwell B hardness)


As per heat treatment of AISI 309 bolts, we could do, solution and ageing treatment, Tempering, Hardening, Spheroidizing, Stress Relieving as per the requirement of the clients

AISI 309 bolts has been widely used in Flue gas scrubbers,Chlorination systems,Acid production and pickling systems,Outlet ducting and stack liners for power plants,Sulfur dioxide scrubbers,Pulp and paper bleach plants,Weld overlay of less corrosion resistant metals,Pesticide and other agrichemical production,Tubular heat exchangers

Plate heat exchangers,Nuclear fuel reprocessing,incineration scrubber systems and so on

In order to control the quality of AISI 309 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 309 bolts has been 100% ultrasonic test according to EN102768-3, SA388, Sep 1921  etc

We could supply AISI 309 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 309 bolts, we are glad to quote the best price for your side.

Except AISI 309 bolts,we also could produce AISI 309 flanges,AISI 309 plates,AISI 309 fasteners,AISI 309 bars,AISI 309 pipe fittings,AISI 309 pipes,AISI 309 tubes,AISI 309 springs