What is the composition of 4130 steel?
Aircraft quality 4130 alloy steel is a medium carbon, low alloy steel containing 0.15/0.25% molybdenum and 0.80/1.10% chromium as strengthening agents. This type of steel is also commonly referred to as a chromoly steel, or chrome moly steel. Due to its relatively low carbon content of 0.28/0.33%.
What is the carbon equivalent of AISI 4130?
AISI 4130 low alloy steel containing nominally 0.3% Carbon, 1% Chromium and 0.2% Molybdenum is widely used in oil patch applications. It is similar to 4140 which has a higher carbon level giving 4130 improved weldability, at the expense of through thickness strength.
What’s the difference between 4130 and 4140 steel?
4140 is similar in composition to 4130 except for the higher carbon content. The “30” in 4130 represents the carbon content by % of weight (0.28-0.33 % for 4130 vs 0.38-0.43 % for 4140). Because of its higher carbon content, 4140 steel has greater hardenability and strength than does 4130.
What is the Rockwell hardness of 4140 steel?
4140 (modified) Cold Finished, Annealed Alloy Bar Stock It is offered in the cold finished annealed condition. Typical hardness is Rockwell “C” 19/24. Typical tensile strength 114,000 PSI. Its wear resistant properties far exceed that of “cold roll” steels.
Is AISI 4130 stainless steel?
| AISI 4130 alloy steel has properties better than or similar to aircraft-grade stainless steels. | Alloy steels are less expensive and more-easily machined than standard stainless grades. Stainless steel is widely used in the food and medical industries because it is easily cleaned and sanitized.
Is 4130 lighter than mild steel?
We all know that Mild Steel is heavier than 4130, because it must have a thicker wall to come close to the same strength, but there are other distinctions as well. And it goes beyond the material itself, but also to the way that they are handled in a chassis.
What’s the difference between 4140 and 4130 steel?
What is the density of 4140 steel?
7.85 g/cm3
Physical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.85 g/cm3 | 0.284 lb/in³ |
| Melting point | 1416°C | 2580°F |
How do you harden a 4130?
Heating at 1600 F followed by an oil quench will harden the 4130 alloy. For best results a normalizing pre-hardening heat treatment may be used at 1650 to 1700 F followed by the 1600 F soak and oil quench.
What is ASTM 4130 steel?
Annealing ASTM 4130 alloy steel offers excellent ductility. AISI 4130 steel is usually supplied as round bar commonly in the hardened and tempered condition. AISI/SAE 4130 steel grade is a versatile alloy with good atmospheric corrosion resistance and reasonable strength up to around 315º C (600º F).
What is the thickness of 4130 steel plate?
4130 Steel Plate/Flat Bar: thickness 10mm – 1500mm x width 200mm – 3000mm. 4130 Steel Tube: outer diameter 4mm to 800mm. Surface Finish: Black, Rough Machined, Peeled, Turned or as per given requirements.
What is the modulus of elasticity of 4130 steel?
It is a common mechanical value that is often used to show a material’s stiffness and is especially useful when comparing engineering metals. Type 4130 steel has a modulus of elasticity of 205 GPa (29700 ksi), which is higher than some high strength spring steels such a 9260 steel (read more in our article on 9260 steel ).
What is the normalizing temperature for 4130 oil?
The nominal normalizing temperature for 4130 is 900 º C (1650 º F) followed by the 1600 F soak and oil quench, but production experience may necessitate a temperature either 50 º F (10 º C) above or below this figure.