AISI S7 Tool Steel | 1. Cr. Mo. V1. 3- 1.
Project Description. What is S7tool steel? In tool steel standard ASTM A6. S steels according to the AISI classification system. S1, S2, S5, S6, and S7 are the types of shock- resisting tool steels. AISI S7 tool steel is a shock- resistant air hardening steel.
Tool Steel, Crucible S7 is a shock resisting tool steel with. Crucible Steel S7 (AISI S7) Tool Steel. Available Properties; Density. Category : Steel: Class : Tool steel: Type : Shock-resisting steel: Designations : United States: ASTM A681, UNS T41907. S7 Shock Resisting Tool Steel. Because of its unusual combination of properties, S7 is suitable for a wide range of tool and die. AISI S7: Chemical. Massage tool stainless steel h9 h11 steel aisi h11 steel s7 tool steel s1 tool steel a2 tool steel o2 tool steel. ASTM A681 AISI H11 Steel Round Bar, Hot Work Tool.
Wear resisting properties. It is a very deep hardening steel and will. % max. for all tool steel types. AISI S7. working with Tool Wrap. • Tool Steel.
AISI S7 steel has exceptional impact properties plus the highest hardenability of shock resisting grades of tool steel. Steel S7 also possesses good softening resistance at high temperatures which gives it hot work capabilities. Since S7 steel hardens in air, it is also safe and stable in heat treatment. AISI S7 tools steel has an unusual combination of properties, making it suitable for an extremely wide range of tool and die work – where shock- resistance, medium hot- work properties, or ease of machining and heat- treatment are most important. Otai special steel is professional supplier of S7 tool steel materials as below range and technical requirements. We could supply AISI s. Round Bar, S7 Drill Rod, S7 Rectangular Bar, S7 Flat Bar, S7 Square Bar and Plate.
Welcome to contact us for more information and ask for a quick quote anytime. Supply Range of AISI S7 Tool Steel.
S7 Steel Round Bar: diameter 8mm – 1. S7 Steel Plate: thickness 2mm –6. Other sizes of S7 steel per customer’s requirements. Surface Finish: Black, Rough Machined, Turned or as per given requirements. Process: Hot rolled, Forged, Cold drawn etc. Relevant Steel Specification for S7 Tool Steel. Country. USAGerman.
Standard. ASTM A6. DIN EN ISO 4. 95. Grades. S7/T4. 19. Cr. Mo. V1. 3- 1.
AISI S7 Steel Chemical Composition and Steel Equivalents. ASTM A6. 81- 2. 00.
CSi. Mn. PSCr. VMo. S7/T4. 19. 07. 0. DIN ISO 4. 95. 7CSi. Mn. PSCr. VMo. 1. Cr. Mo. V1. 3- 1. S7 Tool Steel Mechanical Properties.
S7 Steels Mechanical Properties. Properties. Metric. Hardness, Rockwell C (air cooled from 9.
C, 6. 49°C temper temperature)4. Hardness, Rockwell C (air cooled from 9. C, 4. 49°C temper temperature)5.
Hardness, Rockwell C (air cooled from 9. C, 1. 49°C temper temperature)5. Modulus of elasticity. GPa. Charpy impact (V- notch; air cooled from 9. C; 4. 25°C temper temperature)1. JCharpy impact (V- notch; air cooled from 9.
C; 6. 49°C temper temperature)1. JCharpy impact (V- notch; air cooled from 9. C; 2. 00°C temper temperature)1. JMachinability (1% carbon steel)7.
Poisson’s ratio. 0. Tool Steel S7 Physical Properties. Elastic Modulus. 20. GPa. Density. 7. 8. Thermal Conductivity.
W/m- °KCal/cm- s- °Cat 9. C2. 8. 5. 0. 0. 68. Thermal Properties.
Critical Temperature: 8. CTE, linear 2. 0°C1. CCTE, linear 2. 50°C1. CCTE,linear 5. 00°C1.
CTransformation Temperature. C 5. Forging of AISI Steel S7. Preheat 1. 20. 0°- 1. F. Forge at 2. 00. F. Stop at 1. 70. F and cool slowly.
AISI S7 Tool Steel Heat Treatment. Annealing. Anneal in a protective atmosphere. Heat rapidly to 1. F and hold at that temperature for one and one- half hours for each inch of greatest thickness. To obtain best machining properties, cool slowly to 1. F, and then air- cool. This annealing procedure should produce a hardness of Brinell 1.
Stress Relief S7 steel Material: When desirable to relieve the strains of machining, heat slowly to 1. F, allow to equalize, then cool in air. Hardening. Preheat: Warm steel S7 slightly before charging into the preheat furnace 1. F, prior to hardening. Harden: 1. 75. 0°F.
Quench S7 tool steel in air if cross section is 2- 1/2″ or smaller; sections 2- 1/2″ to 6″ should be oil quenched to black (1. F) followed by air cooling to 1. F. Larger cross sections of S7 steel should be oil quenched to 1.
F. Quench: Quench in still air or dry air blast. Temper: Tool steel S7 is normally tempered one hour per inch of section thickness to desired heating rate of 2 hours per inch. Cool in air to room temperature between the two tempers.
The tempering temperature varies according to the intended use. Suggested: For cold- working and similar applications, the recommend. F. Hot working applications: apply a tempering temperature of 9.
F. Never temper at less than 4. F. 7. Machinability of Tool Steel S7. When S7 steel annealed to Brinell 1. S7 is rated at 9. Applications of ASTM A6. S7 Tool Steel. Because of its unusual combination of properties, S7 tool steel is suitable and versatile for a wide range of tool and die applications.
AISI S7 Steel can be used for hot and cold shock applications, medium hot- work dies and medium- run cold work tools and dies. Other uses include: Bull Riveters, Concrete Breakers (Moll Points), Riveting Dies, Powder Metal Dies, Notching Dies, Dowels, Drills, Drill Plates, Hubs, Plastic Mold Dies, Cold Forming Dies, Blanking Dies, Bending Dies, engraving dies, machined cavities for plastic molding dies, die- casting dies, shear blades and Master Hobs. Otai special steel offers good price and quality AISI S7 tool steel materials. And we will have S7 steel price promotion sometimes, sign up our price list newsletter to have the latest price of S7 steels.
S7 Shock Resisting Tool Steel | Interlloy. S7 toolsteel has exceptional impact properties plus the highest hardenability of shock resisting grades of tool steel. It also possesses good softening resistance at high temperatures which gives it hot work capabilities. Because of its unusual combination of properties, S7 is suitable for a wide range of tool and die applications. It is used for hot and cold shock applications, medium hot- work dies and medium- run cold work tools and dies. Typical Applications. Shear Blades. Extrusion Dies.
Leaf Springs. Bending Dies. Gripper Dies. Pipe Cutters.
Chisels. Hot Header Dies. Plastic Molds. Die Casting Dies. Mandrals. Punches. Zinc Die Casting Dies. Collets. Cold Forming Dies.
Yellow & Black(Bar end) Rounds. Dia. Squares. 25. Germany. W- nr 1. USAAISI S7%Carbon. Silicon. 0. 3. 0Manganese.
Chromium. 3. 3. 0Molybdenum. Vanadium. 0. 2. 0Physical Properties. Elastic Modulus. 20. GPa. Density. 7. 8. Thermal Conductivity. W/m- °KCal/cm- s- °Cat 9.
C2. 8. 5. 0. 0. 68. Thermal Properties. Critical Temperature: 8. CTE, linear 2. 0°C1.
CCTE, linear 2. 50°C1. CCTE,linear 5. 00°C1. CTransformation Temperature. C*Material stocked in annealed condition. Heat Treatment. Annealing: Heat to 8. C,hold for 2hours, slow cool 3.
C per hour to 5. 40. C then air cool. Or heat to 8.
C, hold 2hrs., cool to 7. C hold 4hrs,then air cool.
Annealed Hardness About BHN 1. Stress Relief. Annealed Parts: Heat to 6. C, hold for 2hours, then cool in still air. Hardened Parts: Heat to 1. C below the original tempering temperature, hold for 2 hours, then cool in still air.
Hardening. Preheat: Heat to 7. C, equalize. Austenitize: 9.
C, Hold time at temperature 3. Quench: Air, positive pressure quench 2bar minimum or interrupted oil to below 6. CSections above > 7.
Oil quench to 5. 40- 5. C, then air cool to handwarm. Temper: 2. 05- 5. CTemper 2hours minimum or at least 1hour per 2. Double Tempering is recommended. Cool to room temperature in between tempers.
Size Change: 0. 1. C and tempered at 2. CHeat Treat Response. Hardness and Impact Toughness Data. Austenitized 9. 40°C Air Cool.
Tempering. Temperature. HRCCharpy C- Notch. Joules. As Air Quenched.
C5. 5- 5. 81. 71. Note all values are approximate and depend on type of heat treatment and quenching rates.
Flame, Induction Hardening or Nitriding Steel. Very good Flame, Induction Hardening and Nitriding Steel. Welding. Welding should be carried out by an experienced Die repair welder. Choice of weld consumable, consult your supplier. Preheating and retempering of work piece is a must.
Polishing. S7 has good polishability in the hardened and tempered condition. Normal polishing techniquesshould be followed, taking care not to over polish as this will lead to a poor surface finish.
Hard Chrome Plating. After hard chrome plating, tool should be tempered for approximately 4 hours at 1. C soas to avoid hydrogen embrittlement. Interlloy believes the information provided is accurate and reliable. However no warranty of accuracy, completeness or reliability is given, nor will any responsibility be taken for errors or omissions.