What is the chromium content of AISI 4340 steel?
AISI / SAE 4340 Alloy Steel
| Chemical Analysis | |
|---|---|
| Si% | Silicon 0.15 – 0.3 |
| Ni% | Nickel 1.65 – 2.0 |
| Cr% | Chromium 0.7 – 0.9 |
| Mo% | Molybdenum 0.2 – 0.3 |
What is the hardness of 4340 steel?
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) | 17 | 17 |
| Hardness, Vickers (converted from Brinell hardness) | 228 | 228 |
| Machinability (annealed and cold drawn. Based on 100 machinability for AISI 1212 steel.) | 50 | 50 |
Is 4130 a chromoly steel?
Chromoly steel is actually alloy steel grade 4130. The alloying elements found in AISI 4130 help to increase the strength to a level higher than that of AISI 1030, which can be increased even more using a proper hardening procedure.
Why AISI 4130 is better?
AISI or SAE 4130 grade is a low-alloy steel containing chromium and molybdenum as strengthening agents. The steel has good strength and toughness, weldability and machinability. AISI/SAE 4130 grade is a versatile alloy with good atmospheric corrosion resistance and reasonable strength.
What is high chrome steel?
High carbon high chrome steels are heat treatable as a consequence of the higher carbon content, and are known as martensitic stainless steels (e.g. 410, 416). They do, however, exhibit lower corrosion resistance due to chromium depletion of the oxide film.
What is chrome alloy steel?
Chromium-molybdenum alloy steel (or chrome moly), is an alloy used for high pressure and temperature use. It is used in oil and gas, energy, construction and the automotive industries because of its corrosion resistance and high-temperature and tensile strength.
What is chrome moly vanadium?
Answer Wiki. Chrome, vanadium, and Moly have roughly the same affects as alloying elements. The moly and vanadium work primarily to refine the grain size in the structure, especially when heat treated. Uniform grain structure in a relatively smaller size is essential for toughness.