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321H Fasteners
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We produce 321H fasteners,321 H fasteners,321H studs,321H Nuts,321H Screws,321H bolts,321H Washers,321H Sockets,321H pins,321H turnbuckles,321H socket screws,321H HEAVY HEX NUT,321 H HEX NUT,321 H Rivets,321H coupling nuts and 321H pins in china

The type of 321H nuts that we could do is as follows:321H Hex Nuts,321H Heavy Hex Nut,321 H Cap Nut,Acorn Nut,Serrated Flange Nut,Coupling Nut,Square Nut,Castle Nut,Wing Nut,Flange Lock Nut,Flex Lock NutnK Lock Nut,Jam Nut,Slotted Nut,Way Lock Nut,Custom Nut,T Nuts

The type of 321H bolts that we could do is as follows:321 H Hex Head Bolt,Carriage Bolt,Anchor Bolt,Eye Bolt,Flange Bolt,Elevator Bolt,Lag Bolt,Draw Bolt,Plow Bolt,Stove Bolt,Tap Bolt,Hanger Bolt,U Bolt,Grub Screw,Shoulder Bolt,Step Bolt,J Bolt

The type of 321H screws that we could do is as follows:321H Socket Head Cap Screws,Flat Socket Cap Screws,Button Head Socket Screw, Low Head Cap Screws, Countersunk Socket Screws,Socket Cap screws,Socket Set screws and so on

The type of 321H studs that we could do is as follows: 321H Thread Studs,Collar Studs,Combo Studs,Double End Studs,Pad Studs,engineer studs,Tap End Studs

The type of 321H washers that we could do is as follows:321H Flat Washer,Spring Washers,Dome Washer,Hexagonal Washer,Square Washer,Countersunk WasherTooth Lock Washer,Dock Washer,Fender Washer,Ogee Washer,Hex Washers,Split / Lock Washer,Customized Washer,Tab Washers

As per surface finish of 321H fasteners. we could do Cadmium Plating,Cadmium Yellow,Chrysler Specs,Zinc and Black Dichromate,Zinc and Yellow Dichromate,Zinc Plating as per the requirement of the clients

321H is non-magnetic in the annealed condition and can be hardened only by cold working.


The chemical composition of 321 H fasteners is as follows

Element

Content (%)

Iron,  Fe

Balance

Chromium,  Cr

17-19

Nickel,  Ni

9-12

Manganese,  Mn

2

Silicon,  Si

1

Titanium,  Ti

0.35

Phosphorous,  P

0.045

Carbon,  C

0.04-0.10

Sulfur,  S

0.03


The mechanical property of 321H fasteners is as follows

Grade

KSI

KSI

Elongation(min.) %

321H

(75)

(30)

35


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

In order to control the quality of 321H fasteners, we have following inspection equipment:size inspection equipment,Digital Vernier Callipers,Digital Micrometers,Slip Gauge Sets,Adjustable Dial Snap Gauges,Thread Ring Gauges,Thread Plug Gauges,Wear Check Plugs for Thread Gauges,Distance Gauges,Adjustable Dial Snap Gauges,Height Gauges,System 21 Ring Gauge,Rotational Capacity

As per the packing of 321H fasteners, In addition to the standard cartons, we also provides small box packing, color-printed carton, polybag packing, custom label with barcode etc.

In order to control the quality of 321H fasteners materail, we could do following test as per the requirement of the clients:tensile tests,impact test,hardness test (Brinell, Vickers, Rockwell),magnetic partlice examination,penetrants test (surface for fissures),ultrasonic examination,

Our 321H fasteners are widely used in Heat shields,Combustion and chimney liners,Valves,Piping,Distillation columns,Bubble caps,Reaction vessels Heat exchangers,Furnace,Gas turbine engine duct work,Equipment used to produce acid and so on


Also we could supply 321H fasteners quality inspection certificate by third party,like TUV, GL, LR, ABS, DNV, RINA, BV and so on

Please send us the size or drawing of 321H fasteners that you need, we are glad to quote the best price

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