- EN / Grade
- 4330M
- Other designations / UNS
- 4330 Modified / 4330+V
UNS K23080 - Family
- Alloy steel
Machining plan and test orientation
The strength of a 4330M component depends on its quenched-and-tempered condition. Longitudinal and transverse results may differ in a heavy bar or forging. Blank orientation, final section and specimen location should be included in the enquiry, particularly when toughness is critical.
The Mod suffix and melting requirement
Products described as 4330 Modified or 4330+V should be matched to the governing order specification. AMS 6411 is one example for bar, forgings and mechanical tubing with premium melting requirements. AMS 6427 is another designation encountered in this field; their chemistry and melting provisions are not automatically equivalent.
Provide loading and environmental requirements together
A drilling shaft and an aerospace connection may use the same grade without sharing the same acceptance requirements. State impact, inspection and environmental needs alongside dimensions and delivery condition. The 4330M name alone does not establish general suitability for corrosive or hydrogen-containing service.
Typical application areas
Aerospace structural components, highly loaded shafts, drilling-equipment parts.
Product and cutting options
Share the section and dimensions you require for this grade. Availability is assessed for each request; the catalogue does not represent live stock.
What to specify in your enquiry
- Grade designation and applicable material standard
- Section, finished dimensions and machining allowance
- Quantity, delivery condition and certificate requirements
Frequently asked questions
Can I request 4330M in cut lengths?+
Share your required section, dimensions and quantity. Our team will assess suitable supply and cutting options for the specific grade.
Are the listed grade designations interchangeable?+
Designation systems can overlap, but they do not make every specification identical. Use the exact standard and certificate requirements defined by your project.