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  • A105 Flanges

Name:A105 Flanges
Specificaiton:ASTM A105
Size::1/2" to 56"
Rating:150Lb to 2500Lb
Steel Grade:A105
MOQ:100 KGS
Ends:Buttwelded, Threaded
Delivery term:FOB, CNF, CIF and EXW
Payment Term:TT or LC At sight
Loading Port:Tianjijn
Deliver mode:By Sea or By Land
Packing:In pallets, in plywood cases, in bulk
Standard:ANSI B16.5, ANSI B16.47

Product Description

A105 flanges

A105

A105 flanges are seamless forged carbon steel piping components for use in pressure systems at ambient and high-temperature service.

Flanges, fittings, valves and various other parts ordered to customer dimension or to industry standards such as MSS, ASME and API specification are included in the scope.

Forgings to this specification are limited to 10,000 lbs.

Types

Buttweld A105 Flanges 

Slip on A105 Flanges 

Socket Weld A105 Flanges

Threaded A105 Flanges 

Blind A105 Flanges 

Weld Neck A105 Flanges

A105 Flange Pressure Rating

150#, 300#, 400#, 600#, 900#, 1500#, 2500# 

A105 Flanges Dimensions 

A105 Flange Weight

Welding

These components can be welded. Welding procedures must comply with ASME Boiler and Pressure Vessel Code Section IX.

Heat Treatment

Heat treatment is not a mandatory requirement except for flanges above Class 300, flanges of special design where the design pressure or design temperature are not known and for items over 4” NPS and above Class 300. When heat treatment is required, annealing, normalizing, normalize and temper, normalize and quench and tempering shall be the applied methods.

Forging

This alloy is forged at between 1,700 degrees Fahrenheit and 2,200 degrees Fahrenheit, followed by quenching and tempering.

Annealing

Forged parts are allowed to cool to below 1,000 degrees Fahrenheit before reheating to between 1,550 degrees Fahrenheit and 1,700 degrees Fahrenheit. Slow furnace cooling follows.

A105 Flanges Chemical Composition

Element Composition %, Note C
Carbon .35 max
Manganese .60-1.05
Phosphorus .035 max
Sulfur .040 max
Silicon .10-35
Copper .40 max, note A
Nickel .40 max, note A
Chromium .30 max, note A,B
Molybdenum .12 max, note A,B
Vanadium .08 max, note A
Note A – The sum of copper, nickel, chromium, molybdenum and vanadium shall not exceed 1.00%
Note B – The sum of chromium and molybdenum shall not exceed .32%
Note C – for each reduction of 0.01% below the specified carbon maximum (.35%), an increase of .06% manganese above the specified maximum (1.05%) will be permitted up to a maximum of 1.65%

A105 Flanges Mechanical Properties

Tensile 70 ksi, min
Yield, note A 36 ksi, min
Elongation in 2in, Basic minimum for wall 5/16″ and over, strip test 30%
Hardness 187 HBW max
Note A – Determined by either the 0.2% offset method or the 0.5% extension-under-load method. Other test methods available as listed in A105.


Hydrostatic Test

Hydrostatic Test shall be conducted by the forging manufacture only when Supplemental S57 of ASTM A961 is specified.

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ASTM A105 Specification

ASTM A105 Specificat...

ASTM A105 Specification stipulate the chemical composition, Mechanical Properties and pressure ratings of A105 flanges and fittings.