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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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