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Data Sheet:

  Alloy Steel 4130 

Chemical Composition Limits

Weight % C Mn P S Si Cr Ni Mo

4130

Bars/Tube

0.28 -0.33

0.40-0.60

0.025

Max

0.025

Max

0.15-0.35

0.80-1.10

0.25

Max

0.15-0.25

4130

Sheet/Plate

0.28 -0.33

0.40-0.60

0.025

Max

0.025

Max

 0.20-0.35 0.80-1.10 - 0.15-0.25

    

Alloy 4130 (AISI 4130) is a chromium molybdenum alloy steel.  Alloy 4130 is a widely used Aircraft Steel due to its weld ability, ease of fabrication and mild harden ability.  The harden ability and weld ability of Alloy 4130 are considered equivalent to 8630 (MIL-S-6250) . Alloy 4130 is also vacuum degassed to meet the magnetic particle inspection standards of AMS 2301.

  

Availability

Alloy 4130 (AISI 4130) is available in Sheet, Tube, Plates, Rods, Bars (Squares, Rounds, Hexagons, Flats) and Welding Wire.  For all stock availability contact Sales.

Alloy Steel 4130 Round Bar

Alloy Steel 4130 Tube

Alloy Steel 4130 Plate

 

Specifications

4130 Bars

UNS G41300

MIL-S-6758

AMS 6370

AMS 2301

4130 Sheet and Plate

UNS G41300

MIL-S-18729

AMS 6350

4130 Tube

AMS 6371

MIL-T-67366

 

    

TYPICAL MECHANICAL PROPERTIES 

4130 (AISI 4130)

Grade

Tensile Strength (psi)

Yield Strength (psi)

Elongation (% in 2")

4130 Tube 95,000 70,000 12

4130 Bar

 (hardened & tempered)

125,000 Min

100,000 Min

17

4130 Sheet & Plate Annealed

85,000

-

-

4130 Sheet & Plate Normalised

  

  

 

up to 0.062"

95,000

75,000

8

over 0.062 to 0.125"

95,000

75,000

10

over 0.125 to 0.187"

95,000

75,000

12

over 0.187 to 0.249

90,000

70,000

15

over 0.249 to 0.749

90,000

70,000

16

over 0.749 to 1.50

90,000

70,000

18

  

HEAT TREATMENT

4130 

Normalised

1600ºF - 1700ºF

Austenitise

1500ºF - 1600ºF

Quench

Oil

Temper

700ºF - 1250ºF

  

Disclaimer

Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.

  

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