1.2311 is a mould steel, 40CrMnMo7, AISI P20. Impax Supreme and M200 are common trade names.

Is Impax the same as 1.2311?

Impax Supreme is Uddeholm's trade name in the P20/1.2311 family. The certificate must show the W.Nr. you have bought.

Can you supply 1.2311?

Yes. State dimension and condition.

What is the difference between 1.2311 and 1.2312?

1.2311 / Impax is the P20 grade without raised sulphur. 1.2312 / Holdax has raised sulphur and therefore mills faster. Both are typically supplied pre-hardened.

Does 1.2311 have to be hardened after delivery?

Typically not. The material is supplied pre-hardened and the mould is milled in the as-delivered condition. If the drawing requires a different condition, it must be stated on the enquiry.

Tool steel

1.2311 / Impax mould steel

1.2311 is a mould steel. The EN designation is 40CrMnMo7. AISI P20. Uddeholm Impax Supreme and Böhler M200 are documented trade names. Typically pre-hardened – the mould is milled in the as-delivered condition. 1.2312 is chosen when sulphur is to help chip formation. INDUSTRISTÅL supplies bar, cuts to length and ships with 3.1.

Request a quote Send drawing – get a price +45 77 34 00 96

Werkstoffnummer: 1.2311
EN designation: 40CrMnMo7
AISI: P20
Trade names: Impax Supreme, M200
Typical condition: pre-hardened

Typical applications

Plastic moulds
Holders
Pre-hardened moulds

Delivery conditions

pre-hardened

Designations

W.Nr.: 1.2311
EN standard: 40CrMnMo7
AISI/SAE: P20
UNS: T51620
Group: Tool steel

Sawing and machining

Cutting to length. Machining at the mould shop.

Certificates and documentation

EN 10204/3.1 as standard. Trade name and W.Nr. must agree.

Dimension programme

Form	Range	Note
Round bar	Ø40–400 mm	P20 / Impax. Lower S than 1.2312.
Flat bar	Flat cut to order	Mould steel.
Plate	To order	Not structural plate.

The range is a delivery programme, not a stock statement. Length is cut to your drawing.

Frequently asked questions

What is 1.2311?: 1.2311 is a mould steel, 40CrMnMo7, AISI P20. Impax Supreme and M200 are common trade names.
Is Impax the same as 1.2311?: Impax Supreme is Uddeholm's trade name in the P20/1.2311 family. The certificate must show the W.Nr. you have bought.
Can you supply 1.2311?: Yes. State dimension and condition.
What is the difference between 1.2311 and 1.2312?: 1.2311 / Impax is the P20 grade without raised sulphur. 1.2312 / Holdax has raised sulphur and therefore mills faster. Both are typically supplied pre-hardened.
Does 1.2311 have to be hardened after delivery?: Typically not. The material is supplied pre-hardened and the mould is milled in the as-delivered condition. If the drawing requires a different condition, it must be stated on the enquiry.

1.2312 / Holdax

More grades and dimensions in Danish

Looking for 1.2311 / Impax?

State dimension, length, quantity and condition – and any trade name the drawing specifies. We cut to length and ship with EN 10204/3.1.

Request a quote +45 77 34 00 96