ThePipingMart Blog Grades SAE – AISI 1037 Alloy Steel – Composition, Properties, and Uses

SAE – AISI 1037 Alloy Steel – Composition, Properties, and Uses

SAE / AISI 1037 Alloy Steel

AISI 1037 is a medium-carbon steel alloy. It has a relatively low tensile strength of around 478 MPa, and its hardness is between 90 to 100 HRC. It has good machinability and the ability to be heat treated for higher hardness. This article will provide an overview of the composition, mechanical properties, physical properties, uses, corrosion resistance, heat resistance, and heat treatment of SAE / AISI 1037.

AISI 1037 Composition

The main components of SAE 1037 are carbon (0.36–0.44%), manganese (0.60–0.90%), silicon (0.15–0.35%), phosphorus (max 0.040%), and sulfur (max 0.050%). It also contains trace amounts of chromium, molybdenum and nickel, adding to its overall strength and durability.

Element Weight %
C  0.32-0.38
Mn  0.70-1.00
P  0.04 (max)
S  0.05 (max)

AISI 1037 Mechanical Properties

The mechanical properties of grade 1037 include a tensile strength of 478 MPa, yield strength of 205 MPa and an elongation percentage of 2 inches at 16%. Its Brinell Hardness Number is 90–100 HRC, and it has a Rockwell C Hardness Number between C40–C50, depending on the tempering temperature used during the manufacturing process.

Properties Conditions
T (°C) Treatment
Density (×1000 kg/m3) 7.7-8.03 25
Poisson’s Ratio 0.27-0.30 25
Elastic Modulus (GPa) 190-210 25
Tensile Strength (Mpa) 1158 25 oil quenched, fine grained, tempered at 425°C
Yield Strength (Mpa) 1034
Elongation (%) 15
Reduction in Area (%) 53
Hardness (HB) 335 25 oil quenched, fine grained, tempered at 425°C

AISI 1037 Physical Properties

The physical properties of alloy 1037 are that it has an approximate density of 7800 kg/m3 and specific gravity of 7800 kg/m3 with a melting point range from 1400 – 1450°C (2552 – 2642°F). It also has a coefficient of thermal expansion from 20 – 100°C (68 – 212°F) at 13 x10-6 per °C and thermal conductivity at 20°C (68°F) is 28 W/m-K, with an electrical resistivity at 20°C (68°F) being 0.061 Ω-cm2/m or 614 Ω-cm2/in; with a modulus elasticity in tension being 200 GPa or 29000 ksi; with a shear modulus being 75 GPa or 11000 ksi; with an Izod impact energy test result being 27 J or 20 ft-lbf; with an electrical resistivity at 20°C (68°F) being 059 Ω-cm2/m or 586 Ω-cm2/in; with thermal conductivity at 20°C (68°F) being 30 W/m-K; and finally having a Machinability rating being 55% compared to B1112 steel as 100%.

Quantity Value Unit
Thermal expansion 16 – 17 e-6/K
Thermal conductivity 16 – 16 W/m.K
Specific heat 500 – 500 J/kg.K
Melting temperature 1370 – 1400 °C
Service temperature 0 – 500 °C
Density 8000 – 8000 kg/m3
Resistivity 0.7 – 0.7 Ohm.mm2/m

Thermal Properties

Properties Conditions
T (°C) Treatment
Thermal Conductivity (W/m-K) 42.7 100
Specific Heat (J/kg-K) 477 50-100

AISI 1037 Uses

Due to its moderate ductility, malleability, toughness and high tensile strength, this type of steel can be used for various structural applications such as gears, shafts, bolts etc., as well as certain everyday items such as knives or scissors.

Corrosion Resistance & Heat Resistance

The corrosion rate in environments containing chlorides is generally low but could increase if galvanic corrosion occurs between parts made from different metals in contact with each other under wet conditions.

Heat Treatment

the heat treatment processes used on this particular metal can affect the corrosion rate significantly. Heat treatments, including quenching, tempering, normalizing, annealing, stress relieving, etc., can improve corrosion resistance by causing changes in the microstructure.

AISI 1037 Machining

SAE/AISI 1037 is a medium-carbon steel that is ideal for machining due to its ability to endure high temperatures without losing its strength and toughness. This allows longer tool life, increased production rates and better surface finish of parts machined from SAE/AISI 1037. It also produces parts that are wear-resistant, non-corrosive and easy to work with in various manufacturing processes, such as milling, turning, drilling and grinding. For best results in these processes, it is important to use the correct carbide tools and cutting speed according to the material properties. By taking these measures into consideration, SAE/AISI 1037 can be used to produce durable end products that are consistent in quality.

AISI 1037 Welding

SAE / AISI 1037 welding is a low-carbon, medium-carbon steel widely used for carburizing and other surface hardening methods. Its higher manganese content provides good case hardening properties with deeper penetration. This welding process works well in industrial applications handling heavy machineries, such as motor vehicle manufacture and heavy manufacturing. It also works best in applications where toughness and strength are more important than ductility, such as oil field equipment parts, hand tools, and farm implements. SAE / AISI 1037 welding requires an experienced welder to ensure quality outcomes, especially when working on complicated structures or objects that require detailed finishing. By using a professional and knowledgeable welder, you can trust that your finished product is safe and of the highest standard possible.


In conclusion, we can see that SAE/AISI1037 is a medium-carbon steel alloy with good machinability, excellent physical properties, great mechanical properties, good heat treatment options available, fair corrosion resistance capabilities & better than average weldability. These features make it suitable for many different types of structural applications & certain everyday items such as knives & scissors where greater wear resistance may be desired than other alloys like brass & bronze because they contain higher levels of carbon which increases wear-resisting abilities overtime when exposed under frictional forces commonly encountered during normal usage conditions. Therefore, if you ever find yourself needing something strong yet highly durable, then you may want to consider using this particular type of metal for your next project!

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