InduSteel Tube,Pipe,Superplast® Stainless Mold Steel Tube,Pipe

InduSteel Tube Superplast® Stainless Mold Steel Tube Product Information -:- For detailed product information, please contact sales. -: InduSteel Tube Superplast® Stainless Mold Steel Tube Synonyms -:- For detailed product information, please contact sales. -:

Industeel Superplast® Stainless Mold Steel Product Information -:- For detailed product information, please contact sales. -: # **Product Introduction: Industeel Superplast® Stainless Mold Steel** ## **1. Overview** **Industeel Superplast® Stainless Mold Steel** is a premium-grade, **martensitic stainless steel** specifically engineered for the most demanding plastic injection and rubber molding applications requiring exceptional **corrosion resistance, polishability, and dimensional stability**. As part of the Superplast® family, this steel is delivered in a **prehardened condition**, optimized for immediate machining while providing outstanding resistance to rust, chemical attack from corrosive plastics and release agents, and wear from abrasive fillers. Its advanced metallurgical composition and manufacturing process ensure a **homogeneous microstructure with ultra-low inclusion content**, enabling the achievement of flawless mirror-like surface finishes (SPI A1) and perfect replication of fine textures, making it the material of choice for optical, medical, and high-gloss consumer product molds. ## **2. International Standards & Specifications** This material is a proprietary grade that meets and exceeds the requirements of leading international standards for corrosion-resistant mold steels. * **Primary Manufacturer Standard:** * **Industeel Superplast® Stainless Mold Steel:** Proprietary specification defining its enhanced properties and guaranteed performance. * **Key International Benchmarks & Equivalents:** * **DIN 1.2316 / EN ISO 4957 X36CrMo17:** The most widely recognized European standard for corrosion-resistant plastic mold steel. Superplast® Stainless is a premium variant of this grade. * **AISI 420 Modified (with Mo):** The American stainless tool steel equivalent, though Superplast® offers tighter controls and enhanced properties. * **JIS G4404 SUS420J2 Modified:** Japanese stainless mold steel grade. * **Common Industry Grades:** Comparable in performance to other premium branded stainless mold steels such as **Uddeholm Stavax ESR** and **Böhler M300 ESR**. * **ISO 4957:** Corresponds to the **X36CrMo17** classification. ## **3. Chemical Composition (Weight %, Typical)** The composition is precisely balanced to maximize corrosion resistance, hardenability, and polishability. | Element | Typical Range (%) | Role & Benefit | |---------|------------------|----------------| | **Carbon (C)** | 0.33 – 0.43 | Provides the necessary hardness and wear resistance after heat treatment. Controlled to balance hardness with toughness and corrosion resistance. | | **Chromium (Cr)** | 15.50 – 17.50 | **Primary corrosion-resisting element.** Forms a dense, passive chromium oxide (Cr₂O₃) layer that provides **excellent resistance to rust and chemical attack** from moisture, cooling water, and acidic plastic decomposition products (e.g., from PVC, flame-retardants). | | **Molybdenum (Mo)** | 1.00 – 1.30 | **Critical addition.** Dramatically enhances **pitting corrosion resistance**, improves hardenability for uniform properties in thick sections, and increases toughness and strength. | | **Manganese (Mn)** | ≤ 1.00 | Aids in deoxidation and hot workability. | | **Silicon (Si)** | ≤ 0.40 | Deoxidizer. | | **Vanadium (V)** | ≤ 0.10 | Added for grain refinement. | | **Sulfur (S)** | **≤ 0.001 (Ultra-Low)** | **The key to exceptional polishability.** Kept at an extremely low level to eliminate sulfide inclusions (MnS), which are the primary defect causing pits, streaks, and voids during high-grade polishing. This is essential for achieving **SPI A1 mirror finishes**. | | **Nickel (Ni)** | May be present in small amounts (~0.5%) in some specifications to improve toughness. | ## **4. Typical Physical & Mechanical Properties** * **Standard Delivery Condition:** **Prehardened and tempered**, typically to a hardness of **290 – 320 HB (31 – 33 HRC)**, ready for machining. * **Properties in Prehardened State (~300 HB):** * **Tensile Strength:** 1000 – 1150 MPa (145,000 – 167,000 psi) * **Yield Strength (0.2% Offset):** 850 – 950 MPa (123,000 – 138,000 psi) * **Elongation:** ≥ 10% (in 50mm) * **Impact Toughness (Charpy V-Notch):** ≥ 20 J (15 ft-lb) at room temperature. * **Machinability:** **Good.** Comparable to other prehardened tool steels. Requires appropriate tooling and parameters. * **Weldability:** **Good to Very Good.** Can be repaired using matching or over-alloyed stainless filler metals with proper pre-heat (200-300°C) and post-weld heat treatment procedures. * **Properties After Final Hardening (Optional):** * **Austenitizing:** 1020-1050°C (1868-1922°F) in vacuum or protective atmosphere. * **Tempering:** 250-550°C (480-1020°F) depending on required hardness/toughness balance. * **Achievable Hardness:** **48 – 52 HRC** (for high-wear components like cores and ejectors). * **Key Performance Features:** * **Corrosion Resistance:** **Excellent.** Superior to standard P20 (1.2311) and 420-type (1.2083) steels. Highly resistant to rust from condensation, cooling water (including mildly chlorinated water), and acidic by-products from plastics. * **Polishability:** **Exceptional.** The ultra-clean, homogeneous microstructure allows for the achievement of **flawless mirror finishes (SPI #A1)** and perfect replication of fine-etched textures (VDI 3400). * **Dimensional Stability:** Very good, with minimal distortion during machining. * **Physical Properties:** * **Density:** 7.78 g/cm³ * **Thermal Conductivity:** ~ 25 W/m·K (at 20°C) – Lower than low-alloy steels. * **Coefficient of Thermal Expansion:** ~ 10.8 × 10⁻⁶/°C (20–100°C) ## **5. Product Application** Superplast® Stainless Mold Steel is the premier choice for molds where surface quality and corrosion resistance are critical. * **Optical and Lens Molds:** For cameras, eyewear, LED components, and light guides requiring flawless optical surfaces. * **Medical Device Molds:** For syringes, implants, diagnostic equipment, and housings where sterilization, cleanability, and absence of corrosion are mandatory. * **Molds for Corrosive Plastics:** * **Polyvinyl Chloride (PVC)** * **Flame-Retardant (FR) compounds** containing halogen or phosphorus. * **Polyacetals (POM)** that release formic acid. * **Food Packaging and Consumer Electronics Molds:** For components requiring high-gloss finishes (Class A surfaces) and hygiene. * **Large, Complex Molds** operating in humid environments where condensation is a concern. ## **6. Key Features & Advantages** * **Superior Corrosion Resistance:** The high Chromium (Cr) and Molybdenum (Mo) content provides best-in-class protection against rust and chemical attack in molding environments, drastically reducing maintenance and extending mold life. * **Unmatched Polishability and Texture Transfer:** The ultra-low sulfur content and homogeneous Superplast® microstructure are the foundation for achieving perfect mirror finishes and sharp texture definition. * **Excellent Dimensional Stability:** Predictable behavior during machining ensures accuracy for high-precision molds. * **Good Machinability in Prehardened State:** Allows for efficient machining of complex geometries directly from the delivered block. * **Through-Hardening Capability:** Can be re-hardened (if needed for specific high-wear components) to achieve higher hardness (up to ~52 HRC). * **Good Weldability and Repairability:** Allows for reliable repair of molds using specialized procedures. * **Good Nitriding Response:** Can be surface hardened via gas or plasma nitriding to further increase surface hardness and wear resistance without compromising corrosion resistance. * **Consistent Isotropic Properties:** Guaranteed uniform performance in all directions. ## **7. Processing Guidelines** * **Machining:** Use sharp carbide tools. Adequate cooling is recommended. Its machinability is good, but slightly more demanding than 1.2311 due to higher strength. * **Polishing:** Follow standard sequential abrasive steps. The material's cleanliness allows for efficient progression to the highest grades (SPI A1). * **Heat Treatment (if required):** For final hardening, **vacuum or protective atmosphere treatment is strongly recommended** to prevent decarburization and oxidation. * **Welding:** Use matching (e.g., 1.2316) or overalloyed stainless filler metals (e.g., AWS ER316L-Si). Apply pre-heat and post-weld tempering at 450-500°C. * **Storage:** Apply rust-preventive oil on machined surfaces during storage. **Summary:** Industeel Superplast® Stainless Mold Steel represents the definitive high-performance solution for applications demanding the perfect synergy of corrosion resistance and supreme surface finish quality. It is engineered to eliminate the risks associated with rust and pitting while providing a flawless substrate for optical-grade polishing. For molders producing high-value components in the medical, optical, consumer electronics, or corrosive plastics sectors, Superplast® Stainless provides the reliability, stunning surface results, and extended service life necessary to protect significant mold investments and ensure the highest part quality. It is a benchmark material that minimizes risk and maximizes performance in the most demanding molding environments. -:- For detailed product information, please contact sales. -: Industeel Superplast® Stainless Mold Steel Specification Dimensions Size： Diameter 20-1000 mm Length <7048 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. -: Industeel Superplast® Stainless Mold Steel Properties -:- For detailed product information, please contact sales. -:

Applications of InduSteel Tube Superplast® Stainless Mold Steel Tube -:- For detailed product information, please contact sales. -: Chemical Identifiers InduSteel Tube Superplast® Stainless Mold Steel Tube -:- For detailed product information, please contact sales. -:

Packing of InduSteel Tube Superplast® Stainless Mold Steel Tube -:- 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 Tube 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 3519 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