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9月 24, 2019

ASTM A182 Forged Fittings & Flanges

ASTM A182 is Standard Specification for Forged or Rolled Alloy & Stainless Steel Flanges, Forged Fittings, and Valves for High-Temperature Service.

They are widely used in petrochemical, oil & gas, power generation, chemicals, and paper manufacturing. We use the forged steel fittings and flanges to connect tubes in variety of industrial applications such as plumbing, heating, fluid distribution, air pressure lines and air conditioning.

Heat Treatment

After hot working, forgings shall be cooled to a temperature below 1000°F [538°C] prior to heat treating in accordance with the requirements as following.

Alloy Steel Heat Treatment Datasheet
Alloy Steel Heat Treatment Datasheet
Heat Treatment for Stainless Steel Forged Fittings & Flanges
Stainless Steel Heat Treatment Datasheet

Stainless Steel Forged Fittings Types

Stainless Steel Forged Fittings ASTM A/SA182 in sizes 1/8″ to 4″, shapes & dimensions are conform to standard of ASME B16.11. 

Pressure ratings for threaded fittings are Class 2000#, 3000# and 6000#. 

Pressure ratings for socket weld fittings are Class 3000#, 6000# and 9000#.

Miscellaneous fittings such as pipe nipples, concentric & eccentric swages and branch connection outlets (olets) are also available.

ASTM A182 Forged Steel Flanges Dimensions

There are some shapes for ASTM A182 forged steel flanges, such as blind flange, socket weld flange, threaded (screwed) flange, weld neck flange, long weld neck flange, SAE flange, slip on flange, spectacle blind, spade & spacer

They are available in size 1/2″ to 24″. For WN & BL Flanges, the size can reach up to 60″.

Pressure Ratings

ANSI Flanges: Class 150#, 300#, 600#, 900#, 1500#, 2500#.

API Flanges: Class 75, 150, 300, 600, 900.

JIS Flanges: JIS B2220 5K, 10K, 16K, 20K, 30K

DIN Flanges: 6 Bar, 10 Bar, 16 Bar, 25 Bar, 40 Bar.

BS 4504 Flanges: PN10, PN16

ASTM A182 Datasheet

Chemical Properties %

GradeCMnPSSiNiCrMo
ASTM A182 F3040.0820.0450.0318.0-11.018.0-20.0 
ASTM A182 F304H0.04-0.1020.0450.0318.0-11.018.0-20.0 
ASTM A182 F304L0.0320.0450.0318.0-13.018.0-20.0 
ASTM A182 F304N0.0820.0450.0318.0-10.518.0-20.0 
ASTM A182 F304LN0.0320.0450.0318.0-10.518.0-20.0 
ASTM A182 F309H0.04-0.1020.0450.03112.0-15.022.0-24.0 
ASTM A182 F3100.2520.0450.03119.0-22.024.0-26.0 
ASTM A182 F310H0.04-0.1020.0450.03119.0-22.024.0-26.0 
ASTM A182 F310MoLN0.0320.030.0150.421.0-23.024.0-26.02.0-3.0
ASTM A182 F3160.0820.0450.03110.0-14.016.0-18.02.0-3.0
ASTM A182 F316H0.04-0.1020.0450.03110.0-14.016.0-18.02.0-3.0
ASTM A182 F316L0.0320.0450.03110.0-15.016.0-18.02.0-3.0
ASTM A182 F316N0.0820.0450.03111.0-14.016.0-18.02.0-3.0
ASTM A182 F316LN0.0320.0450.03111.0-14.016.0-18.02.0-3.0
ASTM A182 F316Ti0.0820.0450.03110.0-14.016.0-18.02.0-3.0
ASTM A182 F3170.0820.0450.03111.0-15.018.0-20.03.0-4.0
ASTM A182 F317L0.0320.0450.03111.0-15.018.0-20.03.0-4.0
ASTM A182 F3210.0820.0450.0319.0-12.017.0-19.0 
ASTM A182 F321H0.04-0.1020.0450.0319.0-12.017.0-19.0 
ASTM A182 F3470.0820.0450.0319.0-13.017.0-20.0 
ASTM A182 F347H0.04-0.1020.0450.0319.0-13.017.0-20.0 
ASTM A182 F3480.0820.0450.0319.0-13.017.0-20.0 
ASTM A182 F348H0.04-0.1020.0450.0319.0-13.017.0-20.0 

Mechanical Properties

 Grade Tensile Strength (Mpa) Yield point (Mpa) Elongation (%) Reduction (%)
ASTM A182 F3045152053050
ASTM A182 F304L4851703050
ASTM A182 F3165152053050
ASTM A182 F316L4851703050
ASTM A182 F3215152053050
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