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

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

The type of 321H bent bolts that we could do is 321 H 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 321H headed bolts that we could do is 321H 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 321H 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 321H 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 321H bolts, the material of 321H bars is melted by ESR+VIR or VIM+ESR+VAR and is produced as the standard of ASTM B462 and ASTM B473

321H is a general purpose austenitic stainless steel


The chemical composition of 321 H bolts is as follows

Element

Content (%)

Fe

Balance

Cr

17-19

Ni

9-12

Mn

2

Si

1

Ti

0.35

P

0.045

C

0.04-0.10

S

0.03


The mechanical property of 321H bolts is as follows

Properties

Metric

Imperial

Tensile  strength

480 MPa

69600 psi

Yield  strength

205 MPa

29700 ksi

Elongation  at break

29%

29%

Hardness,  Brinell

≤187

≤187


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

321H bolts has been widely used in equipment for the manufacture of synthetic rubber, plastics, organic and heavy chemicals, pharmaceuticals, solvents and explosives, petroleum products, etc. Also employed in heat exchangers, mixing tanks, metal cleaning and pickling equipment and process piping and so on


In order to control the quality of 321H 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 321H bolts has been 100% ultrasonic test according to EN102768-3, SA388, Sep 1921  etc

We could supply 321H 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 321H bolts, we are glad to quote the best price for your side.

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