Tooling parts/ components are heated in horizontal state-of-the-art vacuum furnace above austenitising temperature and quenched at a predetermined cooling rate with the help of pressurized high purity Nitrogen gas. After quenching multiple tempering heat treatment cycles are performed to achieve desired hardness.
Pressure Die Casting (PDC) Dies, Hot/ Warm Forging Dies, Press Tools, Jigs & Fixtures etc…
Orvar Supreme, Orvar 2M, QRO-90, Dievar, Hotvar, Vidar Supreme, SKD-61, W-300, W-302, W-320, W-350, W-360, W-303, W-321, W-400, W-403, DAC, DAC-55, HDS HP-1, USD, USN, 1.2343, 1.2344, H-11, H-13, H-21
Swerkar – 21, Sleipner, Vanadis – 4, Vanadis – 6, Vanadis – 10, Calmax, SKD-11, K-100, K-110, K-340, K-353, K-360, K-455, K-600, K-890, A-2, 1.2379, D-2, D-3, D-6, S-7
P-20, P-22, DIN 1.2378, DIN 1.2312
M-2, M-3, M-4, M-35, M-42, M45, T-1, T-2, T-15, ASP-30, ASP-60, ASP-23, S- 290, S-390, S-600, S-590, 1.3343 (M2), 1.3243 (M35), 1.3247 (M35)
Stavax, Impax Supreme, Nimax, Unimax, 1.2083, SS 410, SS 420, SS 440B, SS 440C, SS 316L, SS 310, SS 2242, SS 2541, SS 2022, M310, M 390
OHNS quality AISI grades 01, 02, EO 300
Steel grades are typically austenitic stainless steels of 300 series. The process consists of heating the material up to a temperature of 1150 
and holding it long enough for the carbon to go into the solution. After this the material is quickly cooled to prevent carbon from coming out from the solution. Solution annealed stainless steel is in its most corrosion resistant and ductile condition.
Stainless steel & Inconel gaskets/ seals, Hydraulic fittings, stainless steel tubings & bellows, Stainless steel pipes (up to 1200 mm length), Duplex stainless steel parts for Oil & Gas Industry etc…
Austenitic Stainless Steel Grades such as SS 316, SS 304, SS 301, SS 303, SS 316L, Duplex Stainless Steels, Inconel 600, 625, 718, 825
Precipitation heat treatments strengthen materials by allowing the controlled release of constituents to form precipitate clusters which significantly enhance the strength of the component.
Precipitation hardening is typically performed at temperatures ranging from 900 to 1150°F in vacuum, inert atmosphere or air for hold times ranging from 1 hour to 4 hours depending on exact material and characteristics specified.
Valve components for Marine, Oil & Gas, Defense sectors etc…
15- 5-pH, 17- 4 pH, 17-7pH
Brazing is a metal-joining technique wherein a filler metal is used to join two or more materials by drawing it into the joint by capillary action. A filler metal is a material with a melting point lower than that of the materials to be joined.
Copper, Nickel, Silver, Aluminium
This is a low temperature process where voltage is applied between the parts to be nitride and the furnace wall. A glow discharge with high ionization level is generated around the parts. On the surface area, directly charged by the ions, nitrides are formed and decompose releasing active nitrogen into the parts surface.
Temperature |
400 |
Pressure |
1-3 mbar |
Gas Composition |
Nitrogen, Hydrogen |
Time |
4 Hrs to 30 Hrs (depending on case depth requirement) |
Layer thickness |
From 50 microns to 300 microns, please check with us for higher layer thickness |
Pressure Die Casting (PDC) Dies, Forging dies, Plastic moulds, Cutting tools, tablet punches & dies, Pharmaceutical tooling, Orifice plates, Extrusion rods, Extrusion screws Aeronautic parts, Transmission parts, gears, pinions, gear toothed bar, machine tool components, rails, slide cams, mandrels camshaft, crankshaft, valve seat, piston ect…
Tool steels (Hot working steel, Cold working steel, High Speed steel)
Plastic moulding steel
Orvar Supreme, Orvar 2M, QRO-90, Dievar, Hotvar, Vidar Supreme, SKD-61, W-300, W-302, W-320, W-350, W-360, W-303, W-321, W-400, W-403, DAC, DAC-55, HDS HP-1, USD, USN, 1.2343, 1.2344, H-11, H-13, H-21
Swerkar – 21, Sleipner, Vanadis – 4, Vanadis – 6, Vanadis – 10, Calmax, SKD-11, K-100, K-110, K-340, K-353, K-360, K-455, K-600, K-890, A-2, 1.2379, D-2, D-3, D-6, S-7
P-20, P-22, DIN 1.2378, DIN 1.2312