ASTM A105 Flange is a forged carbon steel flange used in piping systems for high temperature services and ambient temperature services in different pressure conditions. The material grade includes other fittings that go with these flanges. The flanges range in size, shape and type. The Carbon Steel SA105N Flange is a low cost version that is durable and is also made up of carbon steel with applications ranging from ambient to high temperature services.
ASTM A105 Flange
The Carbon Steel ASTM A105 pipe flange is made up of the material that has carbon and other elements in limited levels. The total of chromium and molybdenum shall not exceed 0.32% of the composition and the sum of chromium, molybdenum, copper, nickel and vanadium shall not exceed 1% of the composition.
There are different types such as the A105 slip on flange which slips on to the pipe so that the connection can be adjusted to the desired location over the pipe’s length. The Carbon Steel A105 blind flange is used to close a pipe at one end so that the connection is blind. The A105 Lap joint Flange is a flange that slides directly over the pipe and is used mostly with stub ends so that the lap is free to rotate but the stub end is welded to the pipe.
A105 Slip on Flange Standard Size and Specification
ASTM A105/ ASME SA105 | A105N
From 1/2 inch (i.e. 15 NB) upto 48 inch (i.e. 1200NB)
ASME | BS | DIN | ANSI | GOST | EN Flanges
5 K, 10K, 16K, 20 K, 30K, 40K, 63 K
Cl 150, Class 300, Cl. 400, 600, Class 900, Cl 1500 and 2500
6Bar, 10 Bar, 16Bar, 25 Bar, 40Bar
Carbon Steel A105 blind flange Sizing
Physical Characteristics of A105 Lap joint Flange
Density (lb / cu. in.)
Melting Point (Deg F)
Modulus of Elasticity Tension
Specific Heat (Btu/lb/Deg F - [32-212 Deg F])
Mean Coeff Thermal Expansion
Modulus of Elasticity Torsion
We Provide Varieties of Carbon Steel ASTM A105 Pipe Flange
ASTM A105N Blind Flange
CS A105 Lap Joint Flange
ASME SA105 Reducing Flange
Distinguish between A105 and A105N Flanges
Both the Flanges have same raw materials, same steel grades but require different heat treatment. In A105N flange 'N' means Normalization heat treatment whereas A105 requires no heat treatment. Due to which the A105N have a better mechanical properties then regular A105 Grade.