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AISI 4130 Alloy Steel, SAE 4130

AISI 4130 Alloy Steel Grade • 4130 Chromoly


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SAE 4130 Supplier • AISI 4130 • WNR/DIN 1.7218 • 25CrMo4 • Alloy Steel Supplier

AISI 4130 is a Chromium and Molybdenum Alloy Steel With Low Carbon content

AISI 4130 Steel is used primarily in the construction of commercial and military aircraft and ground support systems.

Alloy Steel 4130 is a material with atmospheric corrosion resistance and good strength up to around 315º C (600º F). It contains chromium and molybdenum as strengthening agents and the low carbon content in this alloy steels makes it easily weldable. AISI 4130 is more responsive to mechanical and heat treatments as compared to carbon steels. SAE 4130 thus shows good strength, toughness and fatigue strength. 4130 Chromoly is similar to 4140 material which has high carbon content.

AISI 4130 is covered by a number of specifications and designations such as DIN 1.7218, UNS G41300, SCM430 Steel, 25CrMo4 and Cr-Mo Steel.

Industry Names: SAE 4130, Alloy Steel, 4130 Steel, 4130 Chromoly
Specifications: AISI/SAE 4130, UNS G41300, WNR/DIN 1.7218, BS 970
Applications: Aeronautical, Construction, Navy
Features: Atmospheric Corrosion Resistant,Good Strength

Siddhagiri Metals and Tubes stocks a SAE 4130 in forms of Pipe, Flanges and Pipe Fittings in all sizes and forms.


Siddhagiri Metals and Tubes is an exporter of high-quality AISI/SAE 4130 Alloy Steel. We are an ISO 9001:2015 certified company with CRISIL MSE 4 Rating.
Other Names: SAE 4130, 4130 Steel, UNS G41300, 4130 Chromoly, AFNOR 25CD4
Category: Alloy Steel > 4130 Steel
Material: Alloy Steel | Chromoly
Brand: Siddhagiri Metals and Tubes
Manufacturer: Siddhagiri Metals and Tubes
Rating: 4.5/5 based on 86 customer reviews

4130 Steel Specifications and Standards

Grade North America France Germany Japan Russia European British Other Names
AISI/SAE 4130 UNS G41300 AFNOR 25CD4 WNR/DIN 1.7218 SCM420, SCM430 GOST 20KHM, 30KHM, 30KHMA EURONORM 25CrMo4 BS 970 SAE 4130, 4130 Chromoly, 4130 Cr-Mo Steel

Properties of 4130 Steel

  • Chemical Properties
    C Si Mn P S Cr Mo Fe
    MIN 0.280 0.150 0.400 0.800 0.150 97.030
    MAX 0.330 0.300 0.600 0.035 0.040 1.100 0.250 98.220
  • Mechanical Properties
    Yield Strength
    0.2% Proof
    (MPa)
    Tensile strength
    (MPa)
    Elongation
    (% in 50mm)
    Hardness
    (HRB)
    MIN 460 560 21.50  
    MAX       95
  • Physical Properties
    Properties Metric Imperial
    Density 7.85 g/cm3 0.284 lb/in³
    Melting point 1432°C 2610°F

Forms of 4130 Steel

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