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347H Bolts
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We produce 347H bolts,347 H bolts,347H bolting,347H Hex Head Bolts,347H studbolt,347H Heavy Hex head bolts,347H Stud Bolts,347H Anchor Bolt,347H Eye Bolt,347H U Bolts,347H Structural Bolts,347H Step Bolt,347H Flange Bolt,347 H Screw Thread Eye Bolt,347 H Head Plow Bolts,347 H Square Head Bolts,347 H Hexagonal Bolts,347 H J-Bolts,347H Bent Eye Bolts,347H Elevator Bolts,347H Step Bolts,347H Tap Bolts,347H Tension Control Bolts,347H Shoulder Bolt,347 H bent bolts,347H headed bolts,347 H Heavy Hex head bolts,347H Timber Bolts,347H Lag Bolts,347H Timber Bolts,347H Hanger Bolt,347H Button Head Bolts,347 H Tie Bolt,347H Hexagon Bolt,347H Hexagon Cap Screw Bolt from china

The type of 347H anchor bolts that we could do is 347H straight anchor bolts, bent anchor bolts and headed anchor bolts

The type of 347H bent bolts that we could do is 347 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 347H headed bolts that we could do is 347H 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 347H 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 347H 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 347H bolts, the material of 347H bars is melted by ESR+VIR or VIM+ESR+VAR and is produced as the standard of ASTM B462 and ASTM B473

347H is used at temperatures in the carbide precipitation range, 45-900°C, and subsequently exposed to corrosive environments.


The chemical composition of 347 H bolts is as follows

Technical  composition (%)

Iron

Chrominium

Nickel

Manganese

Silcon

Phosphorous

Carbon

S

Nb

347H

min

Bal.

17.0

9.0

-

-

-

0.040

-

10xC

max

-

20.0

13.0

2.00

0.75

0.040

0.100

0.030

1.0


The mechanical property of 347H bolts is as follows

Properties

Metric

Tensile strength, ultimate

70 KSI

Tensile strength, yield

30 KSI

Poisson’s ratio

0.27 – 0.30

Elongation at break

29%

Hardness, Brinell

187


As per heat treatment of 347H bolts, we could do, solution and ageing treatment, Tempering, Hardening, Spheroidizing, Stress Relieving as per the requirement of the clients

347H bolts has been widely used in mechanical engineering, in harbour cranes, ship deck cranes, truck cranes and construction cranes as well as in excavators, antenna systems, in aviation and aerospace, in the offshore technology, rail vehicles, telescopes, tunnelling machines, wind energy turbines, underwater turbines and solar energy plants and so on


In order to control the quality of 347H 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 347H bolts has been 100% ultrasonic test according to EN102768-3, SA388, Sep 1921  etc

We could supply 347H 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 347H bolts, we are glad to quote the best price for your side.

Except 347H bolts,we also could produce 347H flanges,347H plates,347H fasteners,347H bars,347H pipe fittings,347H pipes,347H tubes,347H springs