Non-Stainless Steels

P1-FM™ is an improved low alloy holder steel designed specifically for plastic and rubber molding applications. Chemical composition and thermal treatments provide physical properties and microstructures designed to provide, excellent machinability, dimensional stability, safe weld repair, and reduced mold maintenance costs.

BÖHLER M261 is a precipitation-hardening steel grade for plastic molds, featuring excellent machinability in the as-supplied, i.e. solution annealed and aged, condition.  There is no need for an additional heat treatment, significantly shortening the throughput time.

P20 MQ is a vacuum-degassed, ladle refined, Cr—Ni-Mo-alloyed steel which is supplied in the hardened and tempered condition, offering the following benefits:

• No hardening risks
• No hardening costs
• Time saving, e.g. no waiting for heat treatment
• Lower tool cost (e.g. no distortion to rectify; only one polishing sequence) – Modifications easily carried out
• Can be subsequently nitrided to increase surface wear resistance or locally flame-hardened to reduce surface damage.

BÖHLER M268 VMR is a hardened and tempered plastic mold steel with excellent cleanliness for best polishability. The hardness is constant over the entire cross-section of the steel block, even at large sizes, due to the addition of nickel.

Hot work tool steel offering high impact strength, excellent hot tensile properties, and outstanding air hardenability, admits water cooling.

Hot work tool steel featuring excellent hot tensile properties, high hot wear resistance, adequate toughness and heat checking resistance; admits water cooling.

Hot work tool steel with high hardness, specially developed for use in warm forging applications or for forging dies. BÖHLER W360 ISOBLOC has a significantly higher toughness than 1.2367 ESR – at a higher hardness.

The most important factors, among others, which can result in a lowering of production costs are a long tool life and low maintenance and stand still costs.  This is achieved in practice by using tool materials which, for example, are highly homogenous and have a high micro-cleanliness, causing a significant delay in the onset of heat checking.

In addition, tool life can be dramatically increased in some applications by taking advantage of high thermal stability or inherent toughness.  Along with longer tool life, using these modified tool materials gives users numerous supplementary benefits arising from the following factors:

• Longer tool life
• Less tools
• Fewer tool changes
• Lower repair costs
• Longer cycle times between tool repairs

W720 VMR is a ultra-high-strength maraging steel. In contrast to heat treatable steels its outstanding tensile properties are not due to a hardened structure with relatively high carbon content, but to precipitation of intermetallic phases from a ductile nickel bearing matrix containing almost no carbon. This results in the following advantages: High tensile strength and excellent yield point ratio, satisfactory toughness (reduction of area, elongation, impact strength, fracture toughness) even at low temperatures, superior notched tensile strength and heat checking resistance, practically no size change in heat treatment, no decarburization, no cracking, full hardening even in sizes above average. Convenient machinability in the solution annealed condition (machining is also possible in the precipitation-hardened condition). Good cold forming properties owing to reduced susceptibility to work hardening, eminent weldability, simple heat treatment at low temperatures.

Powder-metallurgical produced cold work tool steel with extremely high wear resistance, good toughness and high compressive strength.

3rd Generation PM Technology

The latest generation of powder metal technology enables Bohler to manufacture a cleaner and finer powder then any other producer in the world today.  The result is a significant increase in toughness and a more uniform carbide distribution.

EDRO S7 ESR is a chromium-molybdenum shock resistant steel characterized by high toughness and high impact resistance.

These benefits, coupled with the high wear resistance offer the molder low-maintenance, long-life molds for the greatest overall molding economy.

EDRO S7 ESR is produced using the ElectroSlag-Refining (ESR) technique, resulting in an extremely fine and consistent micro-structure with superior cleanliness.