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Our 1.2312 plastic mould steel is a versatile, high-performance material. It is engineered with carefully balanced sulfur content to significantly enhance overall machinability. Delivered in a pre-hardened condition reaching 28-36 HRC, this material offers exceptional drilling and milling performance. The 40CrMnMoS 8-6 steel maintains highly uniform hardness across extremely large cross-sections. Meanwhile, it preserves excellent material toughness. It is exceptionally well-suited for high-efficiency production lines. Here, rapid machining processes and long-term cost-efficiency are top priorities.
Production Route: | EAF+LF+VD,Forged or Hot Rolled |
Heat Treatment: | Quenched+ Tempered |
Hardness: | 28-36HRC |
UT Standards: | Sep 1921 Class3 D/d or E/e |
Surface Condition: | Black surface or machined |
Size Range: | |||
Flat | Round | ||
Forged | Thickness: | 150-400mm | Φ200-400mm |
Width: | 400-1600mm | ||
Rolled | Thickness: | 12-150mm | Φ12-200mm |
Width: | 150-2300mm | ||
Chemical Composition | C | Si | Mn | Cr | Mo | P | S |
1.2312 | 0.35~0.45 | 0.30~0.50 | 1.40~1.60 | 1.80~2.00 | 0.15~0.25 | ≤0.03 | 0.05~0.10 |
P20+S | 0.35~0.45 | 0.30~0.50 | 1.40~1.60 | 1.80~2.10 | 0.15~0.25 | ≤0.03 | 0.05~0.10 |
The calculated addition of sulfur in this specific grade allows it to vastly outperform standard alternatives. This strategic composition significantly reduces tool wear. It also accelerates overall production timelines for your operations. Your engineering teams can expect cleaner cuts during intensive machining. They will experience fewer interruptions and a much smoother fabrication process. It consistently delivers rapid material removal rates. This occurs without sacrificing the structural integrity of the final plastic mold tooling.
Achieving uniform structural properties is vital for robust industrial tooling. Our pre-hardened tool steel guarantees a highly balanced hardness distribution. It remains completely stable between 28-36 HRC even when scaled up. This predictability is maintained across massive block dimensions. Such consistency prevents unexpected warping under heavy mechanical stress. It also stops structural failures during critical molding operations. You can rely on this material to maintain its functional stability. It will last throughout the entire lifespan of your forming equipment.
Maintaining flexibility during tooling modification is a distinct operational advantage. This specialized alloy is designed to offer exceptional weldability. It allows for seamless structural adjustments whenever project requirements shift. Furthermore, it demonstrates outstanding nitridability for specific needs. You can selectively harden the surface to resist abrasive wear over time. Please note its specific sulfur content limitation. This grade is not recommended for applications demanding high-mirror polishing. It is also unsuitable for precise photo-etching procedures.
When constructing foundational tool structures, material reliability is essential. Swift processing combined with high strength makes a massive difference. Our materials are extensively specified for creating robust standard mould bases. They are also widely used for large-scale bolsters. The impressive machinability of this grade ensures great efficiency. Creating complex internal geometries becomes a highly streamlined process. Extensive structural frames are completed faster. It serves as a dependable backbone for demanding injection molding operations across diverse sectors.
Scaling up production components requires highly reliable materials. They must handle substantial mass without incurring excessive processing costs. This alloy is the ideal choice for manufacturing large plastic molds. It is frequently used to produce heavy automotive components. You will also find it in sturdy furniture and industrial crates. A reliable functional finish is perfectly adequate for these items. A high-gloss surface is entirely unnecessary here. This steel delivers maximum value by supporting heavy-volume thermoplastic processing effortlessly.
Beyond standard injection applications, these versatile industrial steel materials are heavily utilized elsewhere. They are perfectly suited to fabricate vital mechanical parts. They are frequently selected to create tough backing plates. Engineering teams use them for heavy-duty support pillars as well. They fit perfectly within broader, complex tooling setups. Utilizing this strong pre-hardened material ensures long-term stability. It guarantees the operational safety of your most complex mechanical systems. These systems can process standard thermoplastics with total confidence.
ShengHe Metal operates from an expansive 1.6 million square meter facility. It is equipped with advanced ESR furnaces and massive forging presses. We maintain a regular ready stock exceeding 3,000 tons. This allows us to quickly fulfill your urgent bulk demands. Our dedicated machining factories provide precision-cut plates and finished parts. We ensure a comprehensive, one-stop material solution for every client. Over 15 years of export expertise strengthens our operations. We seamlessly integrate these premium materials into your global workflow.
We produce our materials strictly according to internationally recognized standards, including DIN, ASTM/AISI, JIS, and GB. Our production capabilities cover a massive range of tool and structural alloys to precisely match your engineering specifications.
Every piece of material undergoes a rigorous four-step quality control procedure before it ever leaves our facility. This includes thorough pre-production planning, strict in-process monitoring, complete post-production testing in our independent laboratory, and a final pre-shipment UT inspection (Sep 1921 Class3 D/d or E/e).
We offer excellent flexibility regarding the final presentation of the material to suit your processing capabilities. You can specify whether you require turned, bright, machined, milled, peeled, grinded, or standard black surfaces.
Samples can definitely be provided to help your engineering team evaluate the physical properties and processing characteristics of the steel. While the material sample itself is provided freely, the associated express shipping costs are covered by the recipient.
Our fully equipped independent laboratory routinely facilitates comprehensive third-party inspection services. We welcome external validation to ensure total transparency and complete confidence in the chemical analysis, mechanical tests, and microstructural integrity of our products.
