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Alloy 31 Bolts
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We produce Alloy 31 bolts,Alloy31 bolts,Alloy 31 bolting,Alloy 31 Hex Head Bolts,Alloy 31 studbolt,Alloy 31 Heavy Hex head bolts,Alloy 31 Stud Bolts,Alloy 31 Anchor Bolt,Alloy 31 Eye Bolt,Alloy 31 U Bolts,Alloy 31 Structural Bolts,Alloy 31 Step Bolt,Alloy 31 Flange Bolt,Alloy31 Screw Thread Eye Bolt,Alloy31 Head Plow Bolts,Alloy31 Square Head Bolts,Alloy31 Hexagonal Bolts,Alloy31 J-Bolts,Alloy 31 Bent Eye Bolts,Alloy 31 Elevator Bolts,Alloy 31 Step Bolts,Alloy 31 Tap Bolts,Alloy 31 Tension Control Bolts,Alloy 31 Shoulder Bolt,Alloy31 bent bolts,Alloy 31 headed bolts,Alloy31 Heavy Hex head bolts,Alloy 31 Timber Bolts,Alloy 31 Lag Bolts,Alloy 31 Timber Bolts,Alloy 31 Hanger Bolt,Alloy 31 Button Head Bolts,Alloy31 Tie Bolt,Alloy 31 Hexagon Bolt,Alloy 31 Hexagon Cap Screw Bolt from china

The type of Alloy 31 anchor bolts that we could do is Alloy 31 straight anchor bolts, bent anchor bolts and headed anchor bolts

The type of Alloy 31 bent bolts that we could do is Alloy31 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 31 headed bolts that we could do is Alloy 31 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 31 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 31 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 31 bolts, the material of Alloy 31 bars is melted by ESR+VIR or VIM+ESR+VAR and is produced as the standard of ASTM B649 and ASTM B564

Alloy 31 is an iron-nickel-chromium-molybdenum alloy with nitrogen addition.

The chemical composition of Alloy31 bolts is as follows

.

Carbon

Silcon

Manganese

Phosphorous

Sulfur

Chrominium

Molybdenum

Nickel

Iron

Copper

Nitrogen

min.%

26,0

6,0

30,0

bal.

1,0

0,15

max.%

0,015

0,3

2,0

0,020

0,010

28,0

7,0

32,0

bal.

1,4

0,25


The mechanical property of Alloy 31 bolts is as follows

Temper

Annealed

Tensile Rm

650

MPa (min)

R.p. 0.2% Yield

280

MPa (min)

Elongation (2.02 or 4D gl)

40

% (min)


As per heat treatment of Alloy 31 bolts, we could do, solution and ageing treatment, Tempering, Hardening, Spheroidizing, Stress Relieving as per the requirement of the clients

Alloy 31 bolts has been widely used in Chemical industry,Aerospace,Heat treating industry,Pulp and paper industry,Food processing,Nuclear Engineering,Gas turbine components and so on

In order to control the quality of Alloy 31 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 31 bolts has been 100% ultrasonic test according to EN102768-3, SA388, Sep 1921  etc

We could supply Alloy 31 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 31 bolts, we are glad to quote the best price for your side.

Except Alloy 31 bolts,we also could produce Alloy 31 flanges,Alloy 31 plates,Alloy 31 fastener,Alloy 31 bars,Alloy 31 pipe fittings,Alloy 31 pipes,Alloy 31 tubes,Alloy 31 springs