Stavax ESR steel

Product description:

• Stavax ESR is a high quality stainless steel.
• Manufactured using clean ESR process.
• It is plastic mould steel with excellent polishability and corrosion resistance.

Stavax ESR Steel is a high-quality Electroslag Remelted (ESR) stainless steel. Stavax ESR Steel is designed for plastic molds requiring good corrosion resistance, excellent wear resistance and a high degree of polishibility. High internal cleanliness and homogeneity are provided by the ESR process.

• Good corrosion resistance.
• Excellent polishability.
• Good wear resistance.
• Good machinability.
• Good demensional stability during heat treatment.

• It is used in molding of corrosive plastics such as PVC, Acetates and for molds that runs under humid working and storage condition.
• Stavax ESR Steel is used in the molding of medical components such as syringes and analysis vials.
• It is recommended for the production of optical parts like sunglasses,cameras and lenses.
• It is suitable for larger molds because of its high hardenabilty feature.

Stavax ESR Steel Reduce mold maintenance cost as the mold made ??of Stavax Steel maintains its original surface finish over a long period of time. As compare to non stainless steel, Stavax ESR Steel offers lower production cost through cooling channels that offer clean uniform and consistent cooling cycles times.

• Preheating : 600-850 ° 100 (1110-1560 ° F)Normally a minimum of Two preheating steps required.
• Austenitizing : 100 ° 1000-1025 (1830 -1880 ° C) 1020 House usually 100 ° (1870 ° C). For a very large Mould 1000 100 ° (1830 ° C) Recommended it.
• Annealing : Protect the steel and heat through to 740 ° C(1365 ° F). Then cool in the furnace at 15 ° C (30 ° F)per hour to 550 ° C (1020 ° F), then freely in air.
• Stress relieving : After rough machining the tool should be heated through to 650 ° C (1200 ° C), holding time 2 hours.Cool slowly to 500 ° C (930 ° F), then freely in air.
• Tempering : Tempering at 250-300 ° C (480-570 ° F) results in the best combination of toughness, hardness and corrosion resistance.Holding time at that temperature is minimum 2 hours. HOWEVER, for very large molds it is recommended to use a high tempering temperature to Reduce the residual stresses to a minimum.
• Quenching : Interrupted oil to below 1000F (540C). Air cool to 150F (65C). Salt bath at 250–550°C, then cool in Airblast.