SAE/AISI 1040 Carbon Steel (UNS G10400)


SAE/AISI 1040 Carbon Steel Composition, AISI 1040 Carbon Steel Properties, 1040 carbon steel mechanical properties, 1040 carbon steel equivalent, 1040 carbon steel pipe & Tube, 1040 hr steel yield strength, 1040 steel heat treatment

SAE/AISI 1040 Carbon Steel

Amardeep Steel Centre is considered as the most Reliable ASTM A519 Grade 1040 Tubings Supplier from India. ASTM A519 Grade 1040 Carbon Steel Seamless Tubings are Medium Carbon Steel Tubings with a carbon content of 0.37-0.44 percent and a manganese level of 0.60-0.90 percent. These tubings are most typically utilised for general-purpose purposes throughout the world. ASTM A519 Grade 1040 tubings are ductile, robust, and have a long service life. These tubings are constructed in accordance with ASTM specifications and are commercially known as carbon steel tubings.


The ASTM A519 Grade 1040 specification applies to a variety of carbon and alloy steel seamless mechanical tubing grades. When welding is used to unite weldable mechanical tube grades, the welding technique must be appropriate for the grade, component condition, and anticipated service. Amardeep Steel Centre will generate a recommended pipe size after receiving your question.

Include a print or sketch of the part to be manufactured. To achieve the best tubing for the ultimate application, grade, chemical analysis, and surface condition are carefully evaluated, and production procedures are adjusted.

AISI 1040 steel is classified as a medium carbon steel, possessing excellent hardness and strength characteristics. Notably, it also exhibits good ductility and ease of machinability. Its composition makes it suitable for a wide range of applications, including gears, shafts, axles, and various engineering uses.

SAE/AISI 1040 steel's remarkable heat resistance makes it a preferred choice for applications involving extreme temperatures. Its exceptional mechanical strength and toughness are well-suited for use in both room temperature and high-temperature environments.

The steel's ability to resist scaling and oxidation at temperatures up to 800°C makes it highly versatile in various engineering applications where heat retention is a concern. Even when exposed to temperatures exceeding 1,000°C, its tenacity remains satisfactory, ensuring reliable and durable results through numerous heating cycles.

This impressive heat resistance and durability of SAE/AISI 1040 steel make it an excellent option for critical components and machinery operating in extreme temperature conditions. Its reliability in high-temperature environments contributes to its popularity in various industries, including those requiring exceptional heat retention and performance.

Carbon Steel 1040 Specification (UNS G10400)

  • ASTM A29 (1040)
  • ASTM A513
  • ASTM A546 (1040)
  • ASTM A682 (1040)
  • ASTM A830
  • MIL S-16788
  • SAE J1397 (1040)
  • SAE J412 (1040)
  • ASTM A510 (1040)
  • ASTM A519 (1040)
  • ASTM A576 (1040)
  • ASTM A827
  • MIL S-11310 (CS 1040)
  • MIL S-46070
  • SAE J403 (1040)
  • UNS G10400

AISI Carbon Steel 1040 Chemical Composition

Element Content (%)
Iron, Fe 98.6-99
Manganese, Mn 0.60-0.90
Carbon, C 0.370-0.440
Sulfur, S ≤ 0.050
Phosphorous, P ≤ 0.040

AISI 1040 Carbon Steel Physical Properties

Properties Metric Imperial
Density (chemical composition of 0.435% C, 0.69% Mn, 0.20% Si, annealed at 860°C (1580°F)) 7.845 g/cc 0.2834 lb/in³
Melting point 1521°C 2770°C

AISI 1040 Mechanical Properties

Properties Metric Imperial
Tensile strength 620 MPa 89900 psi
Yield strength 415 MPa 60200 psi
Bulk modulus (typical for steels) 140 GPa 20300 ksi
Shear modulus (typical for steels) 80 GPa 11600 ksi
Elastic modulus 190-210 GPa 27557-30458 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Elongation at break (in 50 mm) 25% 25%
Reduction of area 50% 50%
Hardness, Brinell 201 201
Hardness, Knoop (converted from Brinell hardness) 223 223
Hardness, Rockwell B (converted from Brinell hardness) 93 93
Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) 13 13
Hardness, Vickers (converted from Brinell hardness) 211 211
Izod impact (annealed at 790°C (1450°F)) 45 J 33.2 ft-lb
Izod impact (as rolled) 49 J 36.1 ft-lb
Izod impact (normalized at 900°C (1650°F) 65 J 47.9 ft-lb

AISI 1040 Thermal Properties

Properties Metric Imperial
Thermal expansion co-efficient (@ 20-100°C/68-212°F, composition of 0.40% C, 0.11% Mn, 0.01% P, 0.03% S, 0.03% Si, 0.03% Cu) 11.3 µm/m°C 6.28 µin/in°F
Thermal conductivity (@ 100°C/212°F) 50.7 W/mK 352 BTU in/hr.ft².°F
Thermal conductivity (@ 0°C) 51.9 W/mK 360 BTU in/hr.ft².°F

AISI 1040 Carbon Steel Equivalent Grades

SAE/AISI 1040 Carbon Steel Export Destinations

Kuwait, Iran, China, Bhutan, Ukraine, Vietnam, Namibia, Hungary, Gabon, India, Finland, Sri Lanka, Saudi Arabia, Trinidad & Tobago, Thailand, Gambia, Belgium, Puerto Rico, Costa Rica, Croatia, Ireland, Tibet, Lebanon, Romania, Denmark, Bahrain, Poland, Germany, Taiwan, Spain, United States, Algeria, Chile, Portugal, Jordan, Nigeria, Bolivia, Kazakhstan, Ecuador, Norway, Oman, Mexico, Greece, Kenya, Indonesia, Bangladesh, New Zealand, Philippines, Singapore, Nigeria, Argentina, Mexico, Russia, France, Italy, Poland, South Korea, Colombia, Belarus, Peru, Nepal, Japan, Iraq, Yemen, Australia, Slovakia, Austria, Macau, Afghanistan, Switzerland, Venezuela, Tunisia, Czech Republic, Egypt, Bulgaria, Mongolia, Lithuania, Canada, Chile, Angola, Turkey, Netherlands, Israel, Iran, Sweden, Malaysia, Hong Kong, Brazil, United Arab Emirates, Azerbaijan, Morocco, United Kingdom, Qatar, Serbia, Libya, South Africa, Zimbabwe, Estonia, Ghana.

Domestic Supply of SAE/AISI 1040 Carbon Steel

Jeddah, Ahmedabad, Hong Kong, Sydney, Muscat, Rio de Janeiro, Edmonton, Petaling Jaya, Howrah, Vadodara, Los Angeles, Houston, London, Port-of-Spain, Faridabad, Bogota, Cairo, Mexico City, Sharjah, Singapore, Madrid, Moscow, Granada, Jakarta, Colombo, Algiers, Montreal, Chandigarh, New York, Chiyoda, Geoje-si, Ernakulam, Hyderabad, Al Khobar, Ahvaz, Melbourne, Pimpri-Chinchwad, Nagpur, Karachi, Doha, Busan, Secunderabad, Atyrau, Santiago, Rajkot, Coimbatore, Kolkata, New Delhi, Dubai, Jaipur, Navi Mumbai, Bengaluru, Gurgaon, Chennai, Ludhiana, Surat, Hanoi, Nashik, Dammam, Thiruvananthapuram, Tehran, Baroda, Ankara, Bangkok, Ranchi, Abu Dhabi, Calgary, Dallas, Aberdeen, Kuwait City, Pune, Haryana, Kuala Lumpur, Vung Tau, Lagos, Thane, Ho Chi Minh City, Caracas, Indore, Mumbai, Kanpur, Ulsan, Courbevoie, Visakhapatnam, Milan, La Victoria, Gimhae-si, Seoul, Istanbul, Bhopal, Jamshedpur, Noida, Toronto, Riyadh, Manama, Perth, Al Jubail, Brisbane.

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