1144 Steel - (Stress Proof Steel) - Everything You Need To Know

by AMC

Posted on April 18, 2024 at 03:57 PM

1144 Stressproof Carbon Steel

1144 Carbon Steel also known as stress-proof steel, is a resulfurized, medium-carbon steel renowned for its free-machining characteristics. This high-strength alloy offers superior properties compared to other steels, demonstrated by its ability to withstand forces of up to 1144 lbs without cracking. Developed by Niagara LaSalle Corporation, this steel finds wide applications in construction, transportation, and manufacturing industries. Its high carbon and low alloy composition contribute to its exceptional strength, surpassing similar alloys like A36, A283, and A572 while maintaining favorable machining properties.

Important Factors About 1144 Stressproof Carbon Steel

When choosing 1144 Stressproof® Carbon Steel for machining projects, it's crucial to consider its excellent machinability and ability to maintain material integrity. This steel alloy stands out for its capability to deliver high-quality and accurate parts efficiently, ensuring optimal results in machining operations.

When considering 1144 Stressproof® Carbon Steel for your machining project, these key factors are crucial:

AISI 1144 Carbon Steel - Chemical Composition

Element Content (%)
Iron, Fe 97.50 - 98.01
Manganese, Mn 1.35 - 1.65
Sulfur, S 0.240 - 0.330
Carbon, C 0.40 - 0.480
Phosphorous, P 0.040

1144 Stress Proof Steel Mechanical Properties

Properties Metric Imperial
Tensile strength 745 MPa 108000 psi
Yield strength 620 MPa 89900 psi
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
Elongation at break 10% 10%
Reduction of area 30% 30%
Hardness, Brinell 217 217
Hardness, Knoop (converted from Brinell hardness) 240 240
Hardness, Rockwell B (converted from Brinell hardness) 95 95
Hardness, Rockwell C 17 17
Hardness, Vickers (converted from Brinell hardness) 228 228

1144 Steel Physical Properties

Properties Metric Imperial
Density 7.85 g/cm3 0.284 lb/in³

1144 Stress Proof Steel Thermal Properties

Properties Metric Imperial
Thermal conductivity (typical steel) 49.8 W/mK 346 BTU in/hr.ft2.°F

AISI 1144 Equivalent Material

Other designations that are equivalent to AISI 1144 carbon steel include:

  • ASTM A29
  • ASTM A311
  • ASTM A510
  • SAE J1397
  • SAE J403
  • SAE J412

AISI 1144 Steel Advantageous Characteristics

AISI 1144 Stressproof® Carbon Steel boasts numerous advantageous characteristics, making it a preferred choice in various industries:

  1. Excellent Machinability and Hardenability: Allows for efficient machining and hardening processes.
  2. Exceptional Resistance to Stress and Fatigue: Ensures durability and longevity under high-stress conditions.
  3. Good Resistance to Corrosion and Rust: Maintains integrity and appearance over time, reducing maintenance needs.
  4. High Strength and Stiffness: Suitable for heavy-load applications, providing structural reliability.
  5. High Surface Quality: Offers a smooth finish, ideal for precision components.
  6. Low Thermal Expansion and Contraction Rates: Minimizes dimensional changes under temperature variations.
  7. Minimal Risks of Distortion and Warping: Ensures dimensional stability during processing and use.
  8. Innate Durability without Heat Treatment: Provides inherent strength and toughness without requiring additional heat treatments.

AISI 1144 Steel Applications

1144 Stressproof® Carbon Steel is highly suitable for a range of industrial applications, particularly in scenarios demanding robustness and wear resistance:

  1. High-Production Automatic Machine Components: Ideal for parts requiring strength and durability in automated manufacturing processes.
  2. Construction Industry: Widely used for fabricating components like arbors, bushings, gears, pinions, rods, shafts, sleeves, and spindles due to its strength and reliability.

Choose Amardeep Steel for Your Carbon Steel Needs

Consider Amardeep Steel for your carbon steel requirements. With over 50 years of experience, we specialize in supplying top-notch cold-finished carbon steel. Our inventory includes a wide range of alloy materials such as 1018, 1214, 1215, 1144, and 1045. Moreover, we offer next-day shipping to cater to the urgent needs of our local clientele.

Rest assured, our carbon steel meets stringent quality standards and ASTM specifications. Reach out to us today or request a quote to kickstart your next project with Bergsen Metals!

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