Carbon Steel ASTM SA105 Forged Fittings created in different evaluations of steel and its alloys. Our Forged Pipe Fittings are fabricated with most extreme accuracy, guaranteeing that our scope of items agree to universal quality parameters. our Carbon Steel Fittings are generally figured for sturdiness, erosion resistance and dimensional.
Grade Application:
This ASTM specification covers carbon steel forgings for piping applications such as flanges and fittings (45°eblow, 90°eblow, tee, coupling, etc)
The following table shows the chemical composition of ASTM SA-105 steel:
Element
C
Si
Mn
P
S
Mo
Ni
V
Cu
Ch
Content (%)
≤0.35
0.10-0.35
060-1.05
≤0.35
≤0.4
≤0.12
≤0.4
≤0.08
≤0.4
≤0.3
Mechanical Properties:
Tensile Strength min.
Yield Strength min.
Elongation min.
Reduction of Area, min.
Hardness
MPa
Ksi
MPa
ksi
%
%
HBW
485
70
250
36
22
30
137-187
Hardness:
137-187
Heat treatment:
Heat treatment is not required except for ASTM SA 105 carbon steel forging. However, there are some exceptions that will require heat treatment to improve its mechanical properties for better application.
The typical heat treatment conducted for A105 carbon steel forgings includes annealing(A), normalizing(A), normalizing and tempering(NT), quenching and tempering(QT). Especially, normalizing at approximate 950°C for 2.5 hours is often required by many clients to eliminate possible internal stress in the forgings. These materials are usually marked as “ASTM SA105N”.
Hardening:
Tempering:
Physical Properties:
Thermal Properties:
Forging Properties:
ASTM SA105 carbon steel can be forged at temperatures in the range of 2200 to 1700 F followed by quenching and tempering or normalizing. The actual hot forging temperatures in closed die forging process will be decided by a number of factors, such as complexity of the forged part.
The proper temperature of forging can only be checked at the beginning of forging, higher temperature will probably cause surface defects, such as mill scales, which will bring uneven surface. And lower temperature will be not conducive to the plastic deformation of C1045 carbon steel forged part.
SA105 forgings are limited to a maximum weight of 4540 kg [10000 lb]. As stated in our quality manual, welding repair of defects in ASTM SA105 flanges or fittings is absolutely prohibited by Metals-Piping(although it is permissible by the standard).
