Use and performance of Japanese die steel materials

SLD Japan Hitachi High Wear Resistance Alloy Cold Work Tool Steel
Main components% carbon 1.5, manganese 0.45, chromium 12.0, molybdenum 1.0, vanadium 0.35

Factory state: Annealed HB≤230

Quenching: preheat at 700~750℃, then heat, 1.000~1.050℃, and cool in still air, such as steel with thickness of 6 inches or more…

SLD Japan Hitachi High Wear Resistance Alloy Cold Work Tool Steel

Main components% carbon 1.5, manganese 0.45, chromium 12.0, molybdenum 1.0, vanadium 0.35

Factory state: Annealed HB≤230

Quenching: preheat at 700~750℃ and then heat, 1.000~1.050℃, and cool in still air. For example, if the thickness of steel tools is more than 6 inches, heat to 980~1030℃, hardening in oil is better

Tempering: Heat to 150~200℃ and stay at this temperature, then cool in still air, tempering should be completed in the second time.

Hardness: HRC57℃~62℃

Annealing: Heat to 800~850°C, stay at this temperature for 1~3°C for hours, and let it cool in the furnace.

Forging: 1050~950℃

Uses: This steel is easy to turn, and it is suitable to make sharp knife edges, scissors, circular saws, cold or hot work trimming dies, drum edges, screw patterns, wire dies, milling cutters, punching dies, round drums, and making power transformer core punching dies ,Cutting steel sheet rolling knife, steel tube forming drum, and making the craftsman drum, special forming drum, precision gauge, complicated shapes. Cold pressing tools, tin molds, plastic molds, plastic molds, screw heading molds, etc.

DAC Hitachi High Quality Hot Work Tool Steel

Main components% Carbon 0.4 Silicon 1.0 Manganese 0.4 Chromium 5.3 Molybdenum 1.5 Vanadium 1.1

Factory state: Annealing≤HB250

Forging: 1.050~850℃

Annealing: Heat to 800~850°C, stay at this temperature for three hours, and let it cool down in the furnace.

Tempering: first preheat to 550~680℃ and stay at this temperature, then cool in still air, and temper twice.

Quenching: first preheat to 550~600℃, second heating 850~900℃

Hardness: Below HRC53℃

Uses: This steel contains tungsten and high temperature resistant high-grade alloy steel, suitable for hot work, aluminum, magnesium, zinc, copper alloy die casting molds, grooving knives, scissors and hot forging operations, plastic molds, hot work reamers, rolling Knives, general hot forging dies, hot tools, etc.

FDAC Hitachi brand special die-casting die alloy steel

Steel characteristics: FDAC series DAC (JIS SKD 61) is the basic component, and free-cutting alloy is added, and it is manufactured with a special dissolution method.