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Alloy Steel 4130 | UNS# G43400

Alloy Steel 4130: forms, specifications and uses

Alloy Steel 4130 (UNS G41300) also known as AISI or SAE 4130 is a low-alloy steel that contains chromium and molybdenum and demonstrates good strength, toughness, machinability, and weldability.

Titanium Industries offers Alloy Steel 4130 Round Bar from its locations.

Alloy Steel 4130 is supplied to specifications including AMS 2301, AMS 6346, AMS 6348, AMS 6370, AMS-S-6758 and ASTM A331.

Typical uses of Alloy Steel 4130 include commercial and military aircraft, automotive, oil & gas, agricultural and forged valve bodies and pumps.

For Alloy Steel 4130, request a quote online or contact your nearest Titanium Industries location. Alloy data on this page is for reference only, not for design.

Round bar, one of the Alloy Steel 4130 product forms Titanium Industries stocks

Alloy Steel 4130 | UNS# G41300 also known as AISI or SAE 4130 is a low-alloy steel that contains chromium and molybdenum and demonstrates good strength, toughness, machinability, and weldability. Often utilized as forgings in the aerospace and oil & gas industries, automotive, agricultural, and defense applications. AISI 4130 is versatile with good atmospheric resistance and good strength at moderately high temperatures.

Alloy Steel 4130 Specifications:

Alloy Steel 4130 product forms offered at all Titanium Industries' locations:

Alloy Steel 4130 Applications:

  • Commercial and Military Aircraft
  • Automotive
  • Oil & Gas
  • Agricultural
  • Forged Valve Bodies and Pumps

Discounted Products

DISCLAIMER: Alloy data sheets are for reference only, not for design purposes.

Alloy Steel 4130 | UNS# G41300 — Table 1
Chemical Composition
Fe 97.0% Cr 1.0% Mn 0.50% C 0.30% Si 0.25%
Mo 0.20% S 0.05% P 0.05%
Alloy Steel 4130 | UNS# G41300 — Table 2
PHYSICAL PROPERTIES
Density Electrical conductivity (% IACS) Thermal conductivity (BTU-in/hr-ft²-°F) Specific heat capacity Thermal expansion (1/°F) Melting Point (°F)
0.284 7.73 296 0.114 0.00000620 2610
Alloy Steel 4130 | UNS# G41300 — Table 3
Mechanical Properties
Property Minimum Maximum
Yield Strength Range (Rp0.2 Offset) (ksi) 52.3 63.3
Tensile Strength Range (Rm) (ksi) 81.2 150
Elongation (AL=5 x Ø) 25.5% 28.2%
Brinell Hardness (H) 156 331
Modulus of Elasticity (ksi) (E): 29700
Machineability General Index: 72%

Alloy Steel 4130: questions and answers

What is Alloy Steel 4130?

Alloy Steel 4130 (UNS G41300) also known as AISI or SAE 4130 is a low-alloy steel that contains chromium and molybdenum and demonstrates good strength, toughness, machinability, and weldability.

Which Alloy Steel 4130 product forms does Titanium Industries stock?

Alloy Steel 4130 Round Bar.

Which specifications does Alloy Steel 4130 meet?

AMS 2301, AMS 6346, AMS 6348, AMS 6370, AMS-S-6758 and ASTM A331.

What is Alloy Steel 4130 used for?

Commercial and military aircraft, automotive, oil & gas, agricultural and forged valve bodies and pumps.

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