ThePipingMart Blog Grades SAE/AISI 1070 Carbon Steel (UNS G10700) – Composition, Properties, Uses

SAE/AISI 1070 Carbon Steel (UNS G10700) – Composition, Properties, Uses

SAE/AISI 1070 Steel

SAE/AISI 1070 steel is a medium-carbon, low-alloy steel that is known for its excellent strength and wears resistance. UNS G10700 has been used in many applications, ranging from automotive parts to machine components. This article will explore the different uses of 1070 Carbon Steel material, as well as its corrosion resistance, heat treatment, machining, and welding capabilities.

AISI 1070 Composition

Element Content (%)
Iron, Fe ~ 98
Carbon, C 0.65 – 0.75
Manganese, Mn 0.60 – 0.90
Sulfur, S 0.050 (max)
Phosphorous, P 0.04 (max)

AISI 1070 Physical Properties

Properties Metric Imperial
Density 7.7-8.03 g/cm3 0.278-0.290 lb/in³

AISI 1070 Mechanical Properties

Properties Metric Imperial
Elastic modulus 190-210 GPa 29700-30458 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30

AISI 1070 Thermal Properties

Properties Conditions
T (ºC) Treatment
Thermal expansion co-efficient 11.8 x (10-6/ ºC) 0 – 100

AISI 1070 Equivalent

  • AMS 5115
  • AMS 5115C
  • ASTM A29 (1070)
  • ASTM A510 (1070)
  • ASTM A576 (1070)
  • ASTM A682 (1070)
  • ASTM A713 (1070)
  • ASTM A830
  • MIL S-11713
  • MIL S-12504
  • SAE J1397 (1070)
  • SAE J403 (1070)
  • SAE J412 (1070)
  • DIN 1.1231
  • SS 1770
  • SS 1778
  • AFNOR XC 68


The SAE / AISI 1070 steel alloy has a wide range of industrial uses due to its malleability, strength and corrosion resistance. Its strength-to-weight ratio makes it an ideal material for large structurally important components, such as automotive springs and suspension parts. It is used in these industries because it can withstand large amounts of stress without deforming or failing. Moreover, SAE / AISI 1070 steel is often utilized in components which must function while exposed to harsh temperatures, such as jet engine turbine blades and rocket engine nozzles. Other applications include aircraft landing gear parts, shipbuilding pins and bushings, engineering blades and gaskets used in pipeline oil production.

Corrosion Resistance

SAE/AISI 1070 steel has excellent corrosion resistance due to its high chromium content (up to 11%). This makes it ideal for applications requiring good corrosion protection, such as outdoor furniture or vehicle components. Additionally, the addition of molybdenum provides additional protection against corrosion compared to other steels with similar levels of chromium.

Heat Treatment

SAE/AISI 1070 steel can be heat treated to achieve a wide range of mechanical properties. Heat treatment can be used to increase strength and hardness while decreasing ductility. It is important to note that depending on the application, different heat treatments may be required in order to achieve desired results.

Heat Resistance

SAE/AISI 1070 steel is a great option for anyone looking for a heat-resistant material that also has excellent weldability. This type of steel combines a variety of desirable features, making it highly sought after. Although the heat resistance isn’t as high as some other metals, SAE/AISI 1070 still provides an impressive capability and can handle temperatures up to 200 Celsius comfortably. Its ability to tolerate aliphatic hydrocarbons at higher temperatures is especially beneficial and often makes SAE/AISI 1070 the preferred choice over more expensive alternatives.


SAE/AISI 1070 steel is relatively easy to machine and weld due to its low carbon content and lack of alloying elements. The material can be easily machined using standard cutting tools such as drills and taps.


Similarly, welding is possible using any conventional welding method, such as MIG or TIG welding. However, it is important to note that pre-heating and post-weld heat treatments may be necessary in order to achieve desired results from welding operations.


In summary, SAE/AISI 1070 steel is an excellent choice for many applications due to its exceptional combination of strength, wear resistance and corrosion protection. Its ease of machining and welding makes it highly versatile for use in a wide range of projects. Additionally, its ability to be heat treated allows for further customization depending on the specific requirements of each project. All these factors combine together, making it one of the most popular steels available today.

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SAE/AISI 1070 Carbon Steel (UNS G10700) – Composition, Properties, Uses

by Abhishek Modak time to read: 2 min