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AISI 1022 SAE UNS G10220
Carbon Steel Foundry
Steel foundry in China for producing
AISI 1022 SAE UNS G10220 Carbon Steel castings. The followings are
this material's chemical composition, physical and mechanical
properties and equivalent material grades.
The following
datasheet provides an overview of AISI 1022 Low carbon steel.
Chemical
Composition
|
Element |
Content |
|
Carbon,
C |
0.17 -
0.230 % |
|
Iron,
Fe |
98.68 -
99.13 % |
|
Manganese, Mn |
0.70 -
1.0 % |
|
Phosphorous, P |
≤ 0.040
% |
|
Sulfur,
S |
≤ 0.050
% |
Physical
Properties
|
Physical Properties |
Metric |
Imperial |
|
Density |
7.858
g/cc |
0.2839
lb/in3 |
Mechanical
Properties
|
Mechanical Properties |
Metric |
Imperial |
|
Hardness, Brinell |
111
|
111 |
|
Hardness, Knoop (Converted from Brinell Hardness) |
128
|
128 |
|
Hardness, Vickers (Converted from Brinell Hardness) |
112
|
112 |
|
Tensile
Strength, Ultimate |
380 MPa |
55100
psi |
|
Tensile
Strength, Yield |
205 MPa |
29700
psi |
|
Elongation at Break |
25.0 % |
25.0 % |
|
Reduction of Area |
50.0 % |
50.0 % |
|
Bulk
Modulus (Typical for steel) |
140 GPa |
20300
ksi |
|
Poissons Ratio |
0.290 |
0.290 |
|
Shear
Modulus (Typical for steel) |
80.0
GPa |
11600
ksi |
Machining
The
machinability of AISI 1022 low carbon steel is graded at 70% against
the 100% machinability of the standard AISI 1112 steel. In the black
hot rolled supplied condition AISI 1022 steel’s machinability is a
bit lower than the machinability of M1020 bright steel. The softness
of the hot rolled structure causes it to wrap around the cutting
tool and resulting in a less clean cut.
Weldability
AISI 1022 steel
can be readily welded by all standard welding methods. Pre-heating
and post-heating processes are recommended for heavy sections of
AISI 1022 steel.
Heat Treatment
Suitable heat
treatment for AISI 1022 low carbon steel consists of the following
processes:
Hot Working
Forging
Hardening
Tempering
Ageing
Annealing
Cold Working
Conventional
methods are used in the cold working process for AISI 1022 steel. An
anneal may be needed after severe cold working.
Hot Working
AISI 1022 steel
requires 482.2°C -93.3 °C (900°F to 200°F) for the hot working
process.
Forging
AISI 1022 steel
is forged at 1288 °C-982°C (2350°F to 1800°F). The steel is heated
to a maximum of 1100°C to 1200°C, held till the temperature is
uniform throughout the section and forging is commenced. Forging
below 900°C is not recommended. Finished forgings may be air cooled.
Hardening
AISI 1022 steel
is hardened by quenching, tempering and heat treatment. It can also
be hardened by the cold working process.
Tempering
Based on the
required strength level AISI 1022 steel can be tempered after the
heat treatment and quenching process at 316°C-593°C (600°F to 1100
F).
Aging
This is not
applicable for AISI 1022 steel.
Annealing
A stress relief
anneal on AISI 1022 steel is performed at 538 °C (1000°F) and a full
anneal is performed at 927 °C (1700°F) with slow furnace cooling.
Applications of
AISI 1022 Steel
The
applications of AISI 1022 steel include:
It is used by
industry sectors for carburized parts that are lightly stressed and
for welding applications.
It is used for
structural applications with moderate strength such as bolts and
cold formed fasteners.
Recessed-head
screws, low-strength fasteners, motor spindles and die pins utilize
AISI 1022 steel.
AISI 1022 steel
is used a lot in case hardened conditions.
Some typical
applications of AISI 1022 steel include welded structures and
general engineering parts and components.
Some carburized applications of AISI 1022 steel include light duty
gears, camshafts, worm gears, spindles, ratchets and gudgon pins.
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