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Alumunium Extrusion Die Steels

Paras Steel

Premium hot-work tool steels engineered specifically for alumunium extrusion dies, mandrels, die rings, and high-pressure casting molds. Featuring certified ESR (Electro-Slag Remelted) grades 1.2344 and 1.2343.

Alumunium Extrusion Die Steels
Die Steel Archive
Premium Extrusion Die Grade ESR Certified

DIN 1.2344

X40CrMoV5-1 · AISI H13 · W.Nr. 1.2344 ESR

The international standard for alumunium extrusion dies. Electro-Slag Remelted (ESR) processing delivers extreme micro-cleanliness, isotropic mechanical toughness in both transverse and longitudinal directions, superior resistance to thermal fatigue (fire checking), and outstanding hot wear resistance at high extrusion temperatures (480°C - 550°C).

Standard Working Hardness: 46 - 50 HRC
Nitriding Capability: Excellent (Gas / Plasma / Salt bath)
Extrusion Applications: Hollow and solid alumunium profile dies, die plates, mandrels
High Toughness Die Grade ESR Certified

DIN 1.2343

X37CrMoV5-1 · AISI H11 · W.Nr. 1.2343 ESR

Exceptional toughness and thermal shock resistance. Specially formulated for alumunium extrusion dies with delicate geometries, high-reduction ratios, and intricate profile tongues where conventional tool steels are prone to sudden fracture or corner chipping.

Standard Working Hardness: 44 - 48 HRC
Toughness Level: Maximum Charpy V-notch values
Extrusion Applications: Complex thin-wall dies, bridge dies, extrusion liners, die rings
Supporting Tooling Steels

Full Tooling Suite & Processing Services

EN 10228-3 Ultrasonic Class D/d
Precision Saw Cutting

Automatic heavy-duty band saws capable of cutting round bars from Ø 50 mm up to Ø 650 mm and forged blocks to exact die maker tolerances (+2.0/-0.0 mm).

Prompt Cut-to-Size Delivery
100% Ultrasonic Testing

Every die block and bar is 100% tested for internal cleanliness and micro-porosity to EN 10228-3 Class 3/4 and SEP 1921 Group 3 Class D/d or E/e.

EN 10204 3.1 Mill Certificate Included
Support & Backer Steels

Complete stock of companion grades: 1.2714 (56NiCrMoV7) for die bolsters/holders and 1.2367 for extreme hot yield strength.

Comprehensive Die Tooling Packages
Tool Steel Supply

Request Alumunium Extrusion Die Steel Stock & Quotation

Send us your required bar diameter, cut length, or block dimensions (e.g. 1.2344 ESR or 1.2343 ESR). We provide fast pricing, stock confirmation, and reliable dispatch.