Figure 5 (L-CVN vs. Tempering) This data generated in a laboratory shows the effect of tempering on the longitudinal impact energy (Charpy V-Notch) for 1.25" and 2" wall tubing tested at -4°F. Austenitized at 1625°F (885°C) and water quenched. Soak time of approximately 60 minutes at temper temperature.
A2 air-hardening, medium-alloy, cold-work tool steels are a type of group A steels containing molybdenum and chromium. The carbon content in A2 tool steels is high. A2 tool steels can be deep hardened in order to minimize distortion. The data below will provide an overview of A2 air-hardening, medium-alloy, cold-work tool steels. Chemical AISI 4145 - Delivered Nationwide by West Yorkshire Steel AISI 4145 steel is usually supplied ready heat treated to 30-36HRc. If further heat treatment is required annealed AISI 4145 should be heated slowly to 840-875°C and after adequate soaking at this temperature quench in oil. Temper as soon as the tools reach room temperature.
AISI Medium-Alloy, Air-Hardening Tool Steels A2, UNS T30102, ASTM A681, FED QQ-T-570, SAE J437, SAE J438, DIN 1.2363, AFNOR Z 100 CDV 5 (Fr), JIS SKD 12, SS14 2260 (Sweden), B.S. BA 2, High hardenability, high degree of dimensional stability in heat AISI/SAE 4340 Alloy Steel- 4340 Steel Properties All AISI/SAE 4340 Alloy Steel, 4340, is a nickel-chromium-molybdenum alloy steel known for its toughness and its ability to attain high strengths in the heat-treated condition. Commercial and military aircraft, automotive systems, forged hydraulic and other machine tool applications, forged steel crankshafts.
Tempering:Temper immediately after quenching. Hold at temperature for 1 hour per inch (25.4 mm) of thickness, 2 hours minimum, then air cool to ambient temperature. Double tempering is recommended for tempering temperatures of 900°F (482°C) and higher. Cryogenic Treatment:Some prefer to do cryogenic treatment as an extension of the quench Bohler-Uddeholm A2Bohler-Uddeholm A2 4 TEMPERING Choose the tempering temperature according to the hardness required by reference to the tempering graph. Temper twice with intermediate cooling to room temperature. Lowest recommended tempering temperature 480°F (250°C). Holding time at temperature minimum 2 hours. The tempering graphs are valid for small samples. The
Triple tempering is required is required when austenitized at 2100°F (1149°C) or higher. Annealing must be performed after hot working and before re-hardening Heat at a rate not exceeding 400°F per hour (222°C per hour) to 1600°F (871°C), and hold at temperature for 1 hour per inch (25.4 mm) of thickness, 2 hours minimum. Cincinnati Tool Steel Company AISI S7AISI S7 AISI S7 - Chrome-Moly-Shock Resistant Steel AISI S7 is a shock steel with exceptional impact properties - unnotched Charpy over 200 ft-lb at 400F temper. Since it hardens in air, it is safe and stable in heat treatment. But perhaps the most remarkable characteristic of S7 is its versatility. It is used widely for medium-run cold-work tools
D2 Steel Properties. D2 steel is an air hardening, high-carbon, high-chromium tool steel. It has high wear and abrasion resistant properties. It is heat treatable and will offer a hardness in the range 55-62 HRC, and is machinable in the annealed condition. DATA SHEET - CrucibleCRU-WEAR has greater toughness than AISI D2, approaching that of AISI A2. NOTE:Lowering the hardening temperature reduces the Tempering 1850°F 1950°F 2050°F Temperature (1010°C) (1065°C) (1120°C) Properties shown throughout this data sheet
This page is mainly introduced the AISI A2 Datasheet, including chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of AISI A2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application. Datasheet for Steel Grades Tool Steel AISI A2This page is mainly introduced the AISI A2 Datasheet, including chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of AISI A2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
AISI A2 tool steel is high-carbon, high alloy tool steel designed to have excellent wear resistance and toughness. The steel is composted of 1 percent carbon, .3 percent silicon, .6 percent manganese, 5.3 percent chromium, 1.1 percent molybdenum and .2 percent vanadium. The prefix "A" in the name designates it as an air-hardening steel. How to Heat Treat A-2 Tool Steel HunkerFor A2, the most common tempering temperature is 300 to 800 degrees Fahrenheit. Once the steel has reached the intended temperature, hold the steel at that temperature for two hours and let it cool in the air.
AISI SAE P-20 Tool Steel. AISI SAE P-20 is a pre hardened high tensile tool steel which offers ready machineability in the hardened and tempered condition, therefore does not require further heat treatment.This eliminates the risks, cost, and waiting time of heat treatment thus avoiding the associated possibility of distortion or even cracking.DATA SHEET - CrucibleDATA SHEET AIRKOOL® Issue #1 (AISI A2) Carbon 1.00% Manganese 0.85% Chromium 5.25% Molybdenum 1.10% Vanadium 0.25% (1) Heat Treatment:Austenitized as indicated and tempered to hardness. (2) Charpy C-Notch Impact Test (3) Crossed cylinder adhesive wear test (higher number = better wear resistance)