SAE/AISI 1119 Carbon Steel (UNS G11190)- Composition, Properties and Uses

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SAE/AISI 1119 is a low-carbon, high-manganese steel. It is frequently used in automotive parts and components where good machinability and weldability are required. In addition, 1119 is also often used to manufacture cold-rolled steel. SAE/AISI 1119 Carbon Steel (UNS G11190) is a low-carbon, manganese steel that is malleable and ductile, making it an ideal material for manufacturing automotive components, machinery parts, and other industrial applications. With a composition of 0.14-0.20% carbon and 1.00-1.30% manganese, AISI 1119 Carbon Steel is known for its easy machinability, good weldability, and high strength. This steel grade also has excellent corrosion resistance, making it a popular choice for durable applications. With its robust properties and versatile applications, it’s no wonder that AISI 1119 Carbon Steel is a frequently used material in the manufacturing industry. Let’s take more information about 1119 Carbon Steel alloy and see what it can be used for.

What Forms of AISI 1119 is Available at Piping Mart?

Nut
Bar
Bolt
Pipe
Screw
Tubing
Valves
Washers
Flanges
Fasteners
Electrodes
Stud Bolts
Sheet Plates
Pipe Fittings
Forged Fitting
Instrumentation Fittings

AISI 1119 Composition

SAE/AISI 1119 carbon steel typically contains around 0.14-0.20% carbon, 1.00-1.30% manganese, 0.040% phosphorus, and 0.240-0.330% sulfur. This low-carbon steel is often utilized in applications requiring good machinability and surface finish. Its chemical composition and proper heat treatment allow for attaining desired mechanical properties, making it suitable for various industrial uses, including shafts, axles, and components where a balance of strength and machinability is essential.

Element	Content (%)
Iron, Fe	98.13 – 98.62
Manganese, Mn	1.0 – 1.30
Sulfur, S	0.240 – 0.330
Carbon, C	0.14 – 0.20
Phosphorous, P	0.040

AISI 1119 Physical Properties

The density of AISI 1119 carbon steel is approximately 7.87 grams per cubic centimeter (g/cm³). This value reflects the mass per unit volume of the material. AISI 1119’s moderate density and favorable mechanical properties contribute to its suitability for applications where a balance between strength and weight is crucial, such as in various industrial components.

Properties	Metric	Imperial
Density	7.87 g/cm³	0.284 lb/in³

AISI 1119 Mechanical Properties

AISI 1119 carbon steel exhibits a bulk modulus of approximately 140 GPa, an elastic modulus of around 200 GPa, and a Poisson’s ratio of roughly 0.29. These mechanical properties characterize its response to deformation and stress. The values indicate AISI 1119’s ability to withstand loads and deformations while providing insight into its behavior under different mechanical conditions.

Properties	Metric	Imperial
Bulk modulus (typical for steel)	140 GPa	20300 ksi
Shear modulus (typical for steel)	80.0 GPa	11600 ksi
Elastic modulus	190-210 GPa	27557-30458 ksi
Poisson’s ratio	0.27-0.30	0.27-0.30

AISI 1119 Thermal Properties

Properties	Metric	Imperial
Thermal expansion co-efficient (@ 20°C/68°F, typical steel)	11.5 µm/m°C	6.39 µin/in°F
Thermal conductivity (typical steel)	51.9 W/mK	360 BTU in/hr.ft².°F

AISI 1119 Equivalent

ASTM A183
ASTM A29
ASTM A510
ASTM A576
SAE J1249
SAE J1397
SAE J412

AISI 1119 Uses

AISI 1119 is a versatile steel alloy with a wide range of applications in the automotive industry. Due to its high manganese content, this steel alloy is easy to machine and weld. It can also be heat treated for increased strength and hardness. Some common uses for SAE 1119 include:

Automotive parts such as gears, shafts, and axles
Cold rolled steel
Welded tubing

AISI 1119 Corrosion Resistance

One of the most important properties of any steel alloy is its corrosion resistance. SAE / AISI 1119 has excellent corrosion resistance thanks to its high manganese content. This means that parts made from this alloy will withstand exposure to salt water, chemicals, and other corrosive elements without rusting or corroding.

AISI 1119 Heat Resistance

Another key property of SAE / AISI 1119 is its heat resistance. This steel alloy can withstand high temperatures without losing its strength. Parts made from this alloy can therefore be used in applications where they will regularly be exposed to high temperatures.

AISI 1119 Machinability

SAE / AISI 1119 is considered to be a highly machinable steel alloy. It can be easily cut, drilled, milled, and tapped without difficulty. In addition, this alloy produces very little cutting waste when machining operations are performed on it. As a result, parts made from this alloy are often less expensive than other steel alloys.

AISI 1119 Welding

SAE / AISI 1119 can be welded using all standard welding methods, including oxyacetylene welding, arc welding, MIG welding, and TIG welding. However, preheating the workpiece before welding is recommended to avoid cracking or warping during the cooling process. In addition, post-weld heat treatment should also be performed after welding operations have been completed to restore the desired properties of the metal.

Conclusion:

SAE / AISI 1119 is low-carbon steel with high manganese content. It is easy to machine and weld and has excellent corrosion and heat resistance. This steel alloy can be used for a various range of applications. In the automotive industry, including gears, shafts, axles, and cold-rolled steel. Thanks to its machinability and weldability, SAE / AISI 1119 is an ideal choice for many automotive applications where good dimensional stability is required.

Palak Karia

A passionate metal industry expert and blogger. With over 5 years of experience in the field, Palak brings a wealth of knowledge and insight to her writing. Whether discussing the latest trends in the metal industry or sharing tips, she is dedicated to helping others succeed in the metal industry.