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Our 1.2738 plastic mould steel is a premium low-carbon, nickel-aluminum alloyed tool steel. It is specifically engineered for demanding mould applications. Supplied in a pre-hardened condition at 32-36 HRC, our steel eliminates the necessity for subsequent heat treatment after machining. This crucial characteristic effectively prevents material distortion. The specific chemical composition ensures an exceptionally uniform hardness profile. This uniformity remains consistent even across very large cross-sections. Industry professionals rely on our steel for critical tooling projects.
Production Route: | EAF+LF+VD+Forged |
Heat Treatment: | Quenched +Tempered |
Hardness: | 32-36HRC 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: | 150-650mm | Φ200-650mm |
Width: | 400-1600mm | ||
Rolled | Thickness: | 10-250mm | Φ18-200mm |
Width: | 150-2300mm | ||
Chemical Composition | C | Si | Mn | Cr | Mo | Ni |
1.2738 | 0.35~0.45 | 0.20~0.40 | 1.30~1.60 | 1.80~2.10 | 0.15~0.25 | 0.90~1.20 |
P20+Ni | 0.32~0.40 | 0.20~0.40 | 1.00~1.50 | 1.40~2.00 | 0.30~0.55 | 0.80~1.20 |
3Cr2NiMo | 0.32~0.42 | 0.20~0.80 | 1.00~1.50 | 1.40~2.00 | 0.30~0.55 | 0.80~1.20 |
The precise low carbon content of our pre-hardened plastic mould steel guarantees superior surface finishing capabilities. You can achieve an outstanding polish suitable for high-end aesthetic requirements. It also demonstrates superior etchability for creating detailed textured surfaces. Whether you need precise leather grains or intricate decorative patterns, the material responds flawlessly. The vacuum-degassed forging process significantly enhances the overall material purity. This purity directly translates to a defect-free surface finish after intensive machining operations.
The strategic addition of nickel and aluminum significantly enhances the through-hardening properties. Our steel maintains a very uniform hardness profile throughout its entire mass. This structural consistency is absolutely vital for manufacturing massive mould bases and deep cavity inserts. It ensures reliable and consistent wear resistance during extended production runs. You will experience dependable performance without encountering soft spots in the core. The rigorous quenching and tempering process guarantees this exceptional structural integrity.
Our steel exhibits commendable machinability despite its pre-hardened state. This characteristic allows for efficient material removal and reduces overall tool wear. Furthermore, the material offers high toughness to withstand the intense pressures of injection molding. It effectively resists cracking and deformation under heavy operational stress. This unique combination of properties makes it a highly versatile choice for complex tooling geometries. We maintain strict ultrasonic testing standards to ensure absolute internal flawlessness.
Our forged tool steel is primarily utilized for manufacturing large and medium-sized plastic injection moulds. The automotive sector heavily depends on this material for producing substantial external and internal components. It is the material of choice for fabricating car bumpers, robust dashboards, and intricate door panels. The dimensional stability of our steel ensures precise part replication over thousands of cycles. It handles the complex geometries required by modern automotive design specifications with ease.
Beyond automotive uses, our steel serves various industrial and consumer goods sectors. It is widely specified for compression moulds producing technical parts, heavy-duty crates, and storage containers. The material's innate toughness withstands the demanding clamping forces inherent in large-scale molding operations. The superior surface properties ensure the final plastic products exhibit excellent visual appeal. Tooling engineers specify our material when both structural integrity and surface aesthetics are non-negotiable requirements.
ShengHe Metal operates an expansive 1.6 million square meter production facility equipped with advanced forging presses. We manage the entire industrial chain from a 40-ton EBT furnace to final precision machining. Our independent laboratory conducts rigorous chemical analysis, mechanical testing, and ultrasonic inspections. We maintain strict quality control procedures before shipment to guarantee material excellence. Our comprehensive in-house capabilities enable precise control over both product quality and overall production costs.
We continuously maintain a regular inventory of over 3,000 tons covering various tool steels. This extensive ready stock allows for prompt dispatch to fulfill your urgent material demands. Furthermore, our dedicated machining factory provides precision cutting, milling, and grinding services. We deliver custom-machined steel flat bars and precision ground mould plates tailored to your specific dimensional requirements. Our global supply chain experience ensures seamless delivery and reliable service for every order.
We operate our own extensive steel production mill covering 1.6 million square meters. We also collaborate with partner mills and possess our own dedicated machining factory.
Our material is typically supplied in a quenched and tempered condition. The standard hardness range is 32-36 HRC, or we can adjust it according to specific requirements.
We can provide material samples to customers at no initial cost. The express shipping charges for these samples will be borne by the recipient.
Our production aligns with various recognized international specifications. We manufacture according to GB, DIN, ASTM/AISI, EN, ISO, and JIS standards based on your project needs.
Our standard minimum order quantity is approximately 25 tons, which equates to one shipping container. You can mix different types of steel to reach this required quantity.
