SAE 4140 Mechanical Properties | Composition SAE 4140 Equivalent Material

SAE 4041 Steel Tubes - Composition & Properties

Solitaire Overseas, is a top manufacturer, supplier, stockist, and exporter of AISI 4140 Tubes in Mumbai, India. These AISI 4140 Tubes are made from high-quality materials and the most recent technologies following internationally recognized quality standards. SAE 4140 is available in a range of standard and custom specifications to meet the needs of our clients at the most competitive price. Contact to know more about chemical composition of SAE 4140, mechanical properties, equivalent material and more

SAE 4140 is a versatile alloy steel renowned for its high strength, toughness, and excellent fatigue resistance, making it a popular choice in various high-stress applications. When considering a SAE 4140 equivalent material, it’s essential to look at materials that share similar chemical compositions and mechanical characteristics. Common SAE 4140 equivalents include AISI 4140, DIN 1.7225, 42CrMo4, EN 19, and JIS SCM440. These equivalents are widely used across different regions, ensuring that the desirable SAE 4140 properties are available in different markets and applications.

In terms of SAE 4140 mechanical properties, this alloy steel exhibits impressive tensile strength, ranging from 655 MPa to 2000 MPa depending on the heat treatment, with yield strengths from 415 MPa to 1800 MPa. The material has a typical elongation of around 25% in 50 mm and can be hardened to approximately 54 HRC. The combination of high hardness, good fatigue resistance, excellent wear resistance, and adequate corrosion resistance defines the SAE 4140 material properties, making it an optimal choice for components subjected to high stress, cyclic loads, and abrasive environments.

These AISI 4140 Tubings are available in various standard and customized specifications per the clients' requirements at market-leading prices.

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4140 Steel Specification

AISI 4140 Tube Standard

AISI 4140, ASTM A519 (with IBR Test Certificate)

AISI 4140 Tube Size

1/2” NB to 36” NB

AISI 4140 tube Thickness

3-12mm

AISI 4140 Tube Schedules

SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules

AISI 4140 Tube Tolerance

Cold drawn Tube +/-0.1mm
Cold rolled Tube: +/-0.05mm

Craft

Cold rolled and Cold drawn

AISI 4140 Tube Type

Seamless / ERW / Welded / Fabricated

AISI 4140 tube available in Form of

Round, Square, Rectangular, Hydraulic Etc.

AISI 4140 Tube Lengths

Standard, Double &, In Cut length also

AISI 4140 Tube End

Plain End, Bevelled End, Treaded

Additional Testing

NACE MR 0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc.

Application

Seamless Ferritic Alloy-Steel Tube for High-Temperature Service

4140 Steel Material Equivalent

Country	USA	German	British	Japan	China	Australia
Standard	ASTM A29	DIN 17200	BS 970	JIS G4105	GB/T 3077	AS1444
Grades	4140	1.7225 / 42CrMo4	42CrMo4	SCM440	42CrMo	4140

Chemical Composition of SAE 4140

Fe	Cr	Mn	C	Si	Mo	S	P
96.785 - 97.77	0.80 - 1.10	0.75 - 1.0	0.380 - 0.430	0.15 - 0.30	0.15 - 0.25	0.040	0.035

4140 Alloy Steel Mechanical Properties

Properties	Metric	Imperial
Density	7.85 g/cm3	0.284 lb/in³
Melting point	1416°C	2580°F

Tensile Properties 4140 Alloy Tube

Grade Designation	Condition	Ultimate Strength		Yield Strength		Elongation in 2 in.or 50mm, %	Rockwell,Hardness B Scale
Grade Designation	Condition	ksi	Mpa	ksi	Mpa	Elongation in 2 in.or 50mm, %	Rockwell,Hardness B Scale
4140	HR	90	621	70	483	20	89
SR	105	724	85	586	10	95
A	75	517	55	379	30	81
N	90	621	60	414	20	89

Outside Diameter, OD (in mm) & Wall Thickness, WT (in mm) of AISI 4140 Tubes

Product Description	Outside Diamter, OD (in mm)	Wall Thickness, WT (in mm)>
AISI 4140 Round Tube	6mm – 630mm	0.5mm-30mm
AISI 4140 Square Tube	12.7mm* 12.7mm to 300mm* 300mm	0.5mm-30mm
AISI 4140 Rectangular Tube	1020mm to 100200mm	0.5mm-30mm
Seamless 4140 Alloy Steel Tubes	6mm to 630mm	0.5mm-30mm
Chrome Moly 4140 Tube	12.7mm to 76.2mm	0.5mm-2.0mm
AISI 4140 Tubing	12.7mm to 250mm	0.5mm-30mm
AISI 4140 Round Tube	12.7mm to 76.2mm	0.5mm-2.0mm
AISI 4140 Steel Tube	16mm to 85mm	0.5mm-3.0mm
AISI 4140 Alloy Steel Tube	13mm to 85mm	0.5mm-2.0mm
AISI 4140 Custom Tube	20mm to 200mm	0.5mm-2.0mm
4140 Thin-Wall AISI Tubes	22mm0.7mm to 108mm2.0mm	0.5mm-2.0mm
4140 Inner/Outside AISI Tubes	12.5mm to 203.2mm	1.0mm – 5mm
AISI 4140 Seamless Tubes	6mm to 430mm	0.8mm – 30mm
AISI 4140 Capillary Tubes	0.28mm to 10mm	0.08mm – 1.2mm

AISI 4140 Tubing Forms & Availability

Products		Size
Chrome Moly 4140 Square Tube	Chrome Moly 4140 High Pressure Tubing	Sizes 3.35 mm OD To 101.6 mm OD
Chrome Moly 4140 Exhaust Tube	4140 Mechanical Tubing
AISI 4140 Seamless Tube	Chrome Moly 4140 Rectangular Tube
Chrome Moly 4140 Round Tube	Chrome Moly 4140 Seamless Tubing
Alloy Steel 4140 Heat Exchanger Tubes	AISI 4140 Custom Tubing
Chrome Moly 4140 Oval Tubes	AISI 4140 Threaded Tube
Alloy Steel 4140 Seamless Tube	AISI 4140 Custom Tubes
Chrome Moly 4140 Seamless Tubes	Chrome Moly 4140 streamline tube
Chrome Moly 4140 Coiled Tubing	4140 Chrome Moly Tubing

Stock Availability of AISI 4140 Tubing

Products	UNS	DIN
AISI 4140 Seamless Tube	UNS G41400 Seamless Tubes	1.7225 Seamless Tubing
AISI 4140 Round Tube	UNS G41400 Round Tubes	1.7225 Round Tubing
AISI 4140 Custom Tube	UNS G41400 Custom Tubes	1.7225 Custom Tubing

4140 Tubing Sizes

Sizes from .375” up to 4” OD.
Wall thicknesses from .032” up to .500”.
Non-standard random lengths from 17’ to 24’.

AISI 4140 Tubes

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4140 Alloy Tubing

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4140 Steel Applications

AISI 4140 Tube in various Application Industries

Air Preheater Unit

Steam generating Boiler

Power Generation

Economiser

Heat Exchangers

Electric Power Plants

Fossil Fuel Plants

Water Supply Systems

Waste Heat Plants

Cogeneration Facilities

FAQ

SAE 4140 is a versatile and widely used alloy steel known for its impressive balance of strength and toughness. It offers good performance at high temperatures and resists wear. This makes it ideal for demanding applications like gears, shafts, and critical components in power plants and refineries. Its ability to be heat treated for various strength levels and its good weldability make it a popular choice for projects requiring durability and reliability.

SAE 4140 is a chromium-molybdenum alloy steel. Composition of key elements are Carbon (0.38-0.43%), Manganese (0.75-1.00%), Chromium (0.80-1.10%), Molybdenum (0.15-0.25%), Silicon (0.15-0.30%), Sulfur & Phosphorus.

SAE 4140 steel boasts a well-rounded combination of mechanical properties, making it a popular choice for demanding applications. It offers good tensile strength and yield strength, allowing it to handle significant loads. Additionally, SAE 4140 exhibits good toughness and wear resistance, making it suitable for parts that experience impact or friction. While not its most defining feature, it also possesses some level of machinability, aiding in the manufacturing process.

Finding a direct material equivalent to SAE 4140 depends on the specific application and desired properties. AISI 4130 Chromoly Steel and EN 1.7225 (Europe)

Known for its versatility, SAE 4140 steel is a type of chromium-molybdenum alloy steel. These key elements (chromium and molybdenum) enhance its properties, allowing for heat treatment to achieve a wide range of strengths. This makes SAE 4140 a popular choice for various applications, particularly in machine parts like gears, shafts, and spindles.

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