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Our 1.2311 plastic mould steel is expertly crafted to meet the rigorous and exacting demands of modern industrial tooling production worldwide. Delivered in a highly consistent pre-hardened condition ranging from 28 to 32 HRC, this premium material eliminates the costly and time-consuming need for further heat treatment, significantly reducing the critical risk of distortion or cracking in your finished tools. It features a meticulously balanced chemical composition that ensures remarkable high toughness and excellent resistance to thermal fatigue during continuous, high-volume production cycles. This incredibly versatile alloy tool steel provides exceptionally uniform hardness throughout its cross-section, ensuring superior polishability for achieving the flawless, high-quality surface finishes required by top-tier clients.
Production Route: | EAF+LF+VD,Forged or Hot Rolled |
Heat Treatment: | Quenched+ Tempered |
Hardness: | 28-32HRC or acc. to customer requirement |
UT Standards: | Sep 1921 Class3 D/d or E/e |
Surface Condition: | Black surface or machined |
Size Range: | |||
Flat | Round | ||
Forged | Thickness: | 150-550mm | Φ200-550mm |
Width: | 400-1600mm | ||
Rolled | Thickness: | 10-250mm | Φ18-200mm |
Width: | 150-2300mm | ||
Chemical Composition | C | Si | Mn | Cr | Mo | P | S |
1.2311 | 0.35~0.45 | 0.20~0.40 | 1.30~1.60 | 1.80~2.10 | 0.15~0.25 | ≤0.03 | ≤0.03 |
P20 | 0.28~0.40 | 0.20~0.80 | 0.60~1.00 | 1.40~2.00 | 0.30~0.55 | ≤0.03 | ≤0.03 |
3Cr2Mo | 0.28~0.40 | 0.20~0.80 | 0.60~1.00 | 1.40~2.00 | 0.30~0.55 | ≤0.03 | ≤0.03 |
Our material offers exceptional machinability, allowing toolmakers to achieve highly efficient shaping, drilling, and finishing of even the most complex and intricate tool designs. The advanced, integrated EAF, LF, and VD production route, combined with precision forging or hot rolling techniques, guarantees superior internal structural integrity and absolute material purity for demanding applications.
To successfully handle demanding high-wear environments or the aggressive processing of corrosive polymer blends, our steel is engineered to be easily and effectively nitrided or chrome-plated. We provide a comprehensive variety of specialized surface conditions, including standard black surface, turned, milled, peeled, and precision finish milled options, expertly tailored to suit your specific downstream processing requirements and minimize your preparation time.
Every single batch of our steel undergoes exceptionally strict quality control procedures, including mandatory ultrasonic testing according to the rigorous Sep 1921 Class 3 standards to detect any internal flaws. Furthermore, our fully equipped independent laboratory performs highly comprehensive chemical composition analysis, mechanical stress testing, and detailed microstructure analysis to ensure absolute material reliability and performance before any shipment leaves our facility.
This outstanding P20 mould steel equivalent is primarily and extensively utilized for creating highly durable cavities and precision inserts tailored for household appliances, protective electronic housings, and structural automotive components. It consistently delivers the flawless, mirror-like high surface finish fundamentally required for premium, consumer-facing plastic parts in competitive markets.
The inherently excellent toughness and structural stability of the steel make it an undeniably ideal choice for constructing heavy-duty, highly reliable die frames. It serves as an incredibly strong and dimensionally stable bolster for supporting various specialized tool steel inserts under massive operational loads and intense clamping pressures.
Our advanced steel performs exceptionally well when deployed in demanding compression moulds specifically designed for processing rigid thermosetting plastics. Furthermore, it is highly effective and widely adopted for extrusion dies utilized in continuous thermoplastic processing, where maintaining moderate wear resistance and absolute dimensional stability are absolute necessities for product consistency.
ShengHe Metal operates with the robust and unparalleled backing of our expansive headquarters, the Hubei Zhongye Mill, which impressively spans 1.6 million square meters of dedicated production space. This massive infrastructure allows us to exert precise control over both absolute quality and final cost through a completely integrated industrial chain, spanning from initial melting in our 40-ton EBT furnace to final precision forging and advanced heat treatment.
To consistently and reliably support your urgent operational demands and tight project deadlines, we strategically maintain a massive regular stock of over 3000 tons encompassing various essential tool and mold steels. Combined with our sophisticated in-house machining facility and 15 years of dedicated exporting experience, we confidently deliver precision-cut, custom-ground flat bars or specialized mold plates expertly tailored to your exact specifications.
We own a massive production facility covering 1.6 million square meters in Hubei province. Alongside our in-house production capabilities, we maintain strong partnerships with other top mills to ensure a diverse and flexible material supply.
All materials undergo a stringent four-step quality control procedure, from pre-production scheduling to a final pre-shipment inspection in our warehouse. We utilize our independent laboratory for highly comprehensive testing, including strict ultrasonic tests and hardness checking.
Our minimum order quantity is approximately 25 tons, which equates to one standard shipping container. Clients are always welcome to mix different types of steel to comfortably reach this required volume.
Samples can be provided to clients completely free of charge to thoroughly evaluate our material quality. However, the express shipping cost for the sample delivery will need to be covered by the recipient.
