Aisi 4130 Round Bar Properties

AISI 4130

 Technical Data

AISI 4130 is a chromium molybdenum alloy steel. AISI 4130 is supplied as round bar in the hardened and tempered condition to 18-22HRc range. AISI 4130 is suitable for a variety of applications in the oil and gas sector. This material can be supplied toAISI steel standards.


TYPICAL ANALYSIS

 

 

C.

Si.

Mn.

Cr.

Mo.

0.32%

0.25%

0.50%

1.00%

0.22%

 
     AISI 4130 18-22HRc Typical Mechanical Properties 

Yield
(psi)

UTS
(psi)

%
Elongation

% 
Reduction of Area 

Hardness
HRC

Charpy
room temperature
(average of 3)

min 75k

min 95k

min 20%

min 40%

18-22

50J

max 110k

max 110k

 

 

 

 

CHEMISTRY DATA : 

  

Carbon

0.28 – 0.33

Chromium

0.8 – 1.1

Manganese

0.7 – 0.9

Molybdenum

0.15 – 0.25

Phosphorus

0.035 max

Silicon

0.15 – 0.35

Sulphur

0.04 max

The properties requirements of spec L80 are: 

API L80

Minimum Yield Strength: 80,000 psi
Maximum Yield Strength: 95,000 psi
Minimum Tensile Strength: 95,000 psi
Hardness Requirement: 23 HRC maximum
Notes: Manufactured to API specification 5CT. This is a controlled yield strength material with a hardness testing requirement. L80 is usually used in wells with sour (H2S) environments.