EDRO #7 Shock Resistant S7 Tool Steel Wire

EDRO #7 Shock Resistant S7 Tool Steel Wire Product Information -:- For detailed product information, please contact sales. -: EDRO #7 Shock Resistant S7 Tool Steel Wire Synonyms -:- For detailed product information, please contact sales. -:

EDRO #7 Shock Resistant S7 Tool Steel Product Information -:- For detailed product information, please contact sales. -: ### **EDRO #7 Shock Resistant S7 Tool Steel** **Professional-Grade Tool Steel for Demanding Applications** EDRO #7 is a premium air-hardening, shock-resistant tool steel (AISI S7 / DIN 1.2547) engineered to deliver an exceptional combination of high toughness, medium wear resistance, and good compressive strength. It is the material of choice for applications where tools are subjected to severe impact, shock loading, and high stress without sudden fracture. --- #### **Key Features & Benefits** * **Superior Toughness:** Its primary characteristic is exceptional impact resistance, making it ideal for tools that undergo repeated shock loads. * **Good Wear Resistance:** Provides a balanced performance, resisting abrasion and deformation under pressure. * **Deep Hardening Characteristics:** As an air-hardening steel, it minimizes distortion and cracking risks during heat treatment, ensuring dimensional stability for complex tool shapes. * **Machinability:** In the annealed condition, it offers good machinability compared to other high-hardness tool steels. * **Dimensional Stability:** Excellent for maintaining precise tolerances in critical tools after heat treatment. --- #### **Chemical Composition (Typical %)** | Element | Carbon (C) | Silicon (Si) | Manganese (Mn) | Chromium (Cr) | Molybdenum (Mo) | Vanadium (V) | | :--- | :---: | :---: | :---: | :---: | :---: | :---: | | **Content** | 0.50% | 0.25% | 0.70% | 3.25% | 1.40% | 0.25% | *This balanced composition is the foundation of S7 steel's unique shock-resistant properties.* --- #### **Physical & Mechanical Properties** * **Density:** 7.76 g/cm³ * **Hardness (Typical Heat Treated):** 54-58 HRC (Can be hardened up to ~60 HRC for specific applications requiring higher wear resistance). * **Tensile Strength:** ~ 2200 MPa (at 57 HRC) * **Yield Strength:** ~ 1900 MPa (at 57 HRC) * **Impact Toughness:** Very high compared to other tool steels in its hardness range. --- #### **Heat Treatment** * **Annealing:** Heat to 815-870°C (1500-1600°F), slow cool. Resultant hardness: ~ 200 HB. * **Hardening:** Preheat, then austenitize at 925-955°C (1700-1750°F). Quench in still air. * **Tempering:** Temper immediately after hardening. For optimal toughness, temper between 205-540°C (400-1000°F). The hardness decreases as tempering temperature increases, allowing properties to be tailored to the application. --- #### **International Standards & Equivalent Grades** EDRO #7 (S7) conforms to the following international specifications: | Standard | Grade Designation | | :--- | :--- | | **AISI (USA)** | S7 | | **UNS (USA)** | T41907 | | **DIN (Germany)** | 1.2547 | | **W-Nr. (Germany)** | 1.2547 | | **JIS (Japan)** | SKS4? / SX105V* | | **ISO (International)** | 45CrMoV26-12-5* | | **GB (China)** | 5Cr5MoSiV | *Note: Equivalent grades are approximate; exact specifications may vary.* --- #### **Typical Applications** EDRO #7 is specified for a wide range of demanding tooling and component applications: * **Shock Tools:** Chisels, pneumatic tools, jackhammer parts, rivet busters. * **Forging & Forming Dies:** Punches, dies, and inserts for cold forming, stamping, and trimming operations, especially where impact is a factor. * **Molds:** Plastic molds for abrasive materials or requiring high toughness. * **Knives & Blades:** Slitter knives, scrap chopper blades, and liners subject to impact. * **Machine Parts:** Heavy-duty grippers, clutch parts, and components requiring high fatigue strength. * **Shear Blades:** For metal cutting where a tough edge is critical. --- #### **Availability** EDRO #7 is available in a variety of forms to suit manufacturing needs: * Round Bars * Flat Bars * Plates * Blocks * Custom forged shapes (upon request) --- **Choose EDRO #7 S7 Tool Steel** for applications where **uncompromising toughness and reliability** under extreme impact are non-negotiable. It provides the perfect balance between durability and performance for the most challenging industrial environments. -:- For detailed product information, please contact sales. -: EDRO #7 Shock Resistant S7 Tool Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7145 mm Size:We can customized as required Standard： Per your request or drawing We can customized as required Properties（Theoretical） Chemical Composition -:- For detailed product information, please contact sales. -: EDRO #7 Shock Resistant S7 Tool Steel Properties -:- For detailed product information, please contact sales. -:

Applications of EDRO #7 Shock Resistant S7 Tool Steel Wire -:- For detailed product information, please contact sales. -: Chemical Identifiers EDRO #7 Shock Resistant S7 Tool Steel Wire -:- For detailed product information, please contact sales. -:

Packing of EDRO #7 Shock Resistant S7 Tool Steel Wire -:- For detailed product information, please contact sales. -: Standard Packing: -:- For detailed product information, please contact sales. -: Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and Steel Wire drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 3616 gallon liquid totes Special package is available on request. E FORUs’ is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition