High-Purity S136 / S136H ESR Precision Machined Stainless Mold Steel Plate Premium ESR stainless mold steel delivering exceptional rust resistance and high polishability. Supplied precision-milled or ground for medical-grade plastic injection molding. Key Advantages & Capabilities
Rust & Corrosion Proof: Protects cooling channels against rusting.
Precision Milled Stock: Tight squareness tolerances to save machine shop time.
ESR Refined: High purity for consistent mirror polishing performance. 💡 Optional On-Demand Machining & Wire-EDM Services
6-Side Squaring: Precision pre-machined mold bases.
Wire EDM: Precision slotting and core cavity profiling.
Deep Hole Drilling: Conformal cooling line drilling. Technical Specifications
Grades: S136 (Annealed) | S136H (Pre-Hardened 30–35 HRC)
Condition: ESR Annealed / Pre-Hardened | Precision Milled
Applications: Medical device molds, PVC injection tooling, clear container cavities.
📩 Upload your CAD drawings or dimensional requirements for a 2-hour quote.



A:Absolutely. Beyond supplying raw materials, we provide full custom precision machining services. This includes CNC milling, grinding, surface flattening, and custom vacuum heat treatment tailored to your exact blueprints. We deliver near-net-shape blocks to save your production time.
A:Yes, our facility is equipped with heavy-duty CNC milling machines, high-precision grinding machines, and automated sawing systems. We supply not only raw tool steel plates but also fully machined mold bases and custom-sized steel blocks according to your industrial specifications.
A: Our comprehensive service covers everything from steel grade selection consulting to custom cutting, precision machining, and full internal ultrasonic testing (SEP 1921-84). This ensures global toolmakers receive ready-to-use materials with guaranteed quality.
A: Yes, absolutely. We understand that tool and mold steel reliability is critical to your tooling life and production stability. We provide free material samples (standard test blocks or small discs) for metallurgical analysis, chemical composition testing, and hardness verification. You can place a sample request via our chat or contact forms.
A: While the steel material itself is 100% free, international express freight (via DHL, FedEx, or UPS) is typically covered by the buyer. You can provide your courier account number for freight collect. Our Premium Policy: The exact shipping cost you paid for the sample will be 100% credited back and deducted from your first bulk trial order invoice, making the entire sample process completely risk-free for you.








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