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Alloy 20 Bolts
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We produce Alloy 20 bolts,Alloy20 bolts,Alloy 20 bolting,Alloy 20 Hex Head Bolts,Alloy 20 studbolt,Alloy 20 Heavy Hex head bolts,Alloy 20 Stud Bolts,Alloy 20 Anchor Bolt,Alloy 20 Eye Bolt,Alloy 20 U Bolts,Alloy 20 Structural Bolts,Alloy 20 Step Bolt,Alloy 20 Flange Bolt,Alloy20 Screw Thread Eye Bolt,Alloy20 Head Plow Bolts,Alloy20 Square Head Bolts,Alloy20 Hexagonal Bolts,Alloy20 J-Bolts,Alloy 20 Bent Eye Bolts,Alloy 20 Elevator Bolts,Alloy 20 Step Bolts,Alloy 20 Tap Bolts,Alloy 20 Tension Control Bolts,Alloy 20 Shoulder Bolt,Alloy20 bent bolts,Alloy 20 headed bolts,Alloy20 Heavy Hex head bolts,Alloy 20 Timber Bolts,Alloy 20 Lag Bolts,Alloy 20 Timber Bolts,Alloy 20 Hanger Bolt,Alloy 20 Button Head Bolts,Alloy20 Tie Bolt,Alloy 20 Hexagon Bolt,Alloy 20 Hexagon Cap Screw Bolt from china

The type of Alloy 20 anchor bolts that we could do is Alloy 20 straight anchor bolts, bent anchor bolts and headed anchor bolts

The type of Alloy 20 bent bolts that we could do is Alloy20 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 Alloy 20 headed bolts that we could do is Alloy 20 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 Alloy 20 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 Alloy 20 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 Alloy 20 bolts, the material of Alloy 20 bars is melted by ESR+VIR or VIM+ESR+VAR and is produced as the standard of ASTM B462 and ASTM B473

Alloy 20 is  is not a stainless steel but a nickel alloy (ASTM). Alloy 20 is often chosen to solve stress corrosion cracking problems, which may occur with 316L stainless.

The chemical composition of Alloy20 bolts is as follows

Chemical Composition Limits

Weight %

Nickel

Chrominium

Copper

Molybdenum

Iron

Carbon

Nb+Ta

Manganese

Phosphorous

Sulfur

Silcon

Alloy 20

32.0 - 38.0

19 - 21

3 - 4

2 - 3

bal

0.07 max

8 x C-1

2 max

0.045 max

0.035 max

1.0 max


The mechanical property of Alloy 20 bolts is as follows

0.2% proof stress
 (KSI)

Tensile strength
 (KSI)

Elongation
 (%)

Hardness
 (HB)

35

80

30.0

217


As per heat treatment of Alloy 20 bolts, we could do, solution and ageing treatment, Tempering, Hardening, Spheroidizing, Stress Relieving as per the requirement of the clients

Alloy 20 bolts has been widely used in Chemical, Dyestuff, Paints, Sugar, Food, Pharmaceuticals, Environment Protection and various other process industries,Ship Maintenance, Refurbishment & Repair Companies,Midget Submarine & Wet Sub Construction and so on

In order to control the quality of Alloy 20 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 Alloy 20 bolts has been 100% ultrasonic test according to EN102768-3, SA388, Sep 1921  etc

We could supply Alloy 20 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 Alloy 20 bolts, we are glad to quote the best price for your side.

Except Alloy 20 bolts,we also could produce Alloy 20 flanges,Alloy 20 plates,Alloy 20 fastener,Alloy 20 bars,Alloy 20 pipe fittings,Alloy 20 pipes,Alloy 20 tubes,Alloy 20 springs