supreme steel group

Grant Road, Mumbai, Maharashtra

Supreme steel industries is one of the leading manufacturers of steel and steel products. Cold Work Tool SteelSpecifications: 1.Cold work tool steel Cr12 D3DIN 1.20802. D3:Hot rolled, EAF or ESR3.black, Annealed Hardness: HBS=217269 Features 1).Tool Steel Grade:Cold work tool steel plateround barflat bar (Cr12 D3DIN 1.2080) 2).Tool Steel Specification(or as customer's request): Flat bar:Thickness:202530.300mm, Width:205210215.610mm, Length:25004000mmRound bar:Thickness:60300mm, Length:25004000mm

Cold-work tool steels are high carbon steels that are further classified into three subgroups such as oil-hardening steels, high-carbon, high-chromium steels, and air-hardening steels. Oil-hardening cold-work steels are also known as group o steels consisting of o1, o2, o6, and o7 types. Type o1 oil-hardening cold-work steel consists of chromium, manganese, and tungsten and is relatively inexpensive. The following datasheet provides details about o1 type.Fabrication and heat treatment machinability the machinability of o1 steels is very good with a rating of 90% that of water hardening low alloy steels. Forming o1 steels can be easily formed in the annealed condition using conventional methods. Hardening o1 steels should be heated uniformly to 780-820c (1436-1508f) until completely heated through. If needed, the steels can be preheated at 300-500c (572-932f). About 30 minper 25 mm of ruling section is to be provided and then the steels should be immediately quenched in oil.

Hot Work Steel enable the hot forming of metals at high temperatures. They possess good strength at elevated temperatures and also resistance to fluctuating thermal loads occurring where the tool surfaces come into contact with materials to be processed. Application: Pressure Die CastingAluminum & Copper ExtrusionDie Forging, Forging Die BlocksGlass Processing, MandrelsPilger dies for Tube and Pipe manufacture. Properties & Characteristics - High Mechanical Strength- High Polishability- Ductility- High Thermal Conductivity- Good Weldability

Alvar 14 is a chromium-nickel-molybdenumvanadium alloyed steel alvar 14 is characterized by: good toughness good resistance to high thermal stresses good stability in hardening good through-hardening properties applications: alvar 14 is ideally suited for hot working tools such as: support parts for extrusion tooling, e.g. Backers, bolsters hot forging tools die for tin, lead and zinc alloys tools for hot shearing

Aisi d2 is a high-carbon, high-chromium tool steel alloyed with molybdenum and vanadium characterized by: * high wear resistance* high compressive strength* good through-hardening properties* high stability in hardening* good resistance to tempering-back. Applications: aisi d2 is recommended for tools requiring very high wear resistance, combined with moderate toughness (shock-resistance).Deep drawing and forming dies, cold drawing punches, hobbing, blanking, lamination and stamping dies, shear blades, burnishing rolls, master tools and gauges, slitting cutters, thread rolling & wire dies, extrusion dies etc heat treatment: soft annealingprotect the steel and heat through to 1560f (850c).Then cool in the furnace at 20f (10c) per hour to 1200f (650c), then freely in air. Stress relieving: after rough machining the tool should be heated through to 1200f (650c), holding time 2 hours.Cool slowly to 930f (500c), then freely in air hardening:preheating temperature: 11101290f (650750c).Austenitizing temperature: 18101920f (9901050c) but usually 18301905f (10001040c).

Supreme steel industries provide chromium-tungsten tool steel that provides excellent service in both hot and cold work shock applications. Has good wear resistance and high hardness value.

Used in high speed tool and cutting applications such as drills, milling processes, reamers, etc. Mo content promotes toughness, but requires more precise hardening conditions and caution about overheating.