NAK80 Overview
Feature
NAK80 is pre-hardened plastic mold steel. Have a good polishing performance and carving of, electrical discharge machining of good NAK80 factory hardness: hard to pre-37 ~ 43HRC
NAK80 Features: without heat treatment, polishing optically excellent, cutting, etching of the good
● pure steel vacuum degassing refining process.
● ball softening annealing treatment, a good cutting performance.
● strengthen the elements vanadium, molybdenum special by adding, extremely excellent wear resistance.
NAK80 use
Use the mirror polishing mold, dust, TV gels, cosmetic boxes, precision wrinkle machining die, OA equipment, automobile parts EDM mold. Transparency requirements of finish products or products such as home, car, camera, computer products and other supplies on the transparent mold.
● thin plate thickness is less than 2MM, efficient blanking die, punching die and pressure die set.
● a variety of scissors, inlaid blade, woodworking blade.
● thread rolling die and wear slider.
● cold heading dies, thermosetting resin molding.
● deep drawing molding, extrusion dies
Physical properties
NAK80 steel characteristics: without heat treatment, polishing optically excellent, cutting, etching resistance. Solution treatment will die or workpiece temperature to 600 ℃ preheating, and then heated to 840-900 ℃ heat a certain time (at least 2 hours), then cooled to room temperature, after solid solution hardness 29-32HRC.
According to customer needs, can also provide easy-to-state solution machining steel (29-32HRC), after finishing the mold hardness after aging up to 37-43HRC, save machining cost and time.
NAK80 chemical composition
Element C Si Ni Mn Mo Cu AI Cr
Content 0.15 0.3 3.0 1.5 0.3 1.0 1.0 0.3
NAK80 mechanical properties
NAK80 mechanical properties:
1, the mechanical properties at room temperature (20 ℃)
Hardness 41HRC
0.2% yield strength 103kgf / sq mm (147Ksi)
Tensile strength 128kgf / sq mm (147Ksi)
Cross-section reduction rate of 38.0%
15.6% Elongation
Impact value (U-notch, 20 ℃) 2.0Kgf-m / sq cm (151bf-ft) vertical
2, the mechanical properties at high temperatures
Mechanical properties of test temperature (℃
100 200 300
Tensile strength (Ksi) - 145 143
Cross-section reduction rate (%) - 38.5 40.1
Elongation - 15.9 16.0
Shock Value 1.8 3.6 3.5
Hardness (HV) 395 375 360
