Alloy quenched and tempered steel
34Cr4 / 1.7033 alloy engineering steel
34Cr4 is chromium-alloyed quenched and tempered steel without molybdenum. Hardenability sits between C45 and 42CrMo4.
- Delivery conditions
- +QT
- Also known as
- 1.7033
Designations
- W.Nr.
- 1.7033
- EN standard
- 34Cr4
- DIN
- 34Cr4
- Group
- Alloy engineering steel
What it is used for
Smaller shafts and parts requiring hardening where the drawing says 34Cr4.
Limits
41Cr4 at slightly higher carbon. 42CrMo4 when Mo is needed for through-hardening.
Delivery
We source 34Cr4 from European mill partners as round bar, flat bar, square bar, cut to your dimensions and ship the certificate with the material. Typical condition: +QT. From a single cut piece to larger lots — with no minimum charge, so you do not have to buy a full commercial length to get what you need.
Certificates and documentation
34Cr4 can be supplied with a material certificate to EN 10204, depending on producer, dimension and the requirements specified for the delivery. The condition is what the certificate has to carry on 34Cr4: as-rolled, +N and +QT are not the same product, and if a hardness or strength is to be documented in the delivered dimension, the requirement belongs on the enquiry. EN 10204 3.1 can be supplied on a wide range of our materials.
Dimension programme
| Form | Range | Note |
|---|---|---|
| Round bar | Ø20–400 mm hot rolled, forged above | QT bar. State +QT and Ø. |
| Flat bar | Cut to order | Not a standard range of widths. |
| Square bar | Cut to order | State side length. |
The range is a delivery programme, not a stock statement. Length is cut to your drawing.
Read more
Send your enquiry
State grade, dimensions and quantity — or attach a drawing. We reply with a quote.