ノボル鋼鉄 List of Products and Services

We respond to customer requests with our reliable technical skills, focusing on the processing of metal parts used in industrial equipment, including medical devices and servo linear motor mechanism components, as well as plastic and resin machining, from small lots to mass production. 【We have started a WEB shop!!】 You can easily estimate and order materials online. Please click the related link below. → It will connect you to the sales page. We offer a variety of steel grades, including NAK55.

• Processing Contract
• Steel
• Milling machine

Our company proposes and provides suitable products for our customers regarding the sale of special steel, heat treatment, and machining, with their needs in mind. We implement technical services by experienced staff, suggesting steel types, functions, and shapes that match the purpose and application. This feedback is relayed to the respective departments of steel sales, heat treatment, and machining, allowing us to pursue materials that meet our customers' needs. 【Heat treatment processes available at our company】 ■ General heat treatment (vacuum, atmosphere, air, salt bath) - Quenching - Tempering - Annealing, etc. ■ Surface heat treatment - High-frequency quenching - Flame hardening - Laser hardening, etc. *For more details, please feel free to contact us.

• Processing Contract
• Steel
• Non-ferrous metals

High-performance, precision plastic mold pre-hardened steel of the free-cutting type. It has good mirror polishing properties and contains free-cutting elements, resulting in excellent machinability. Stock sizes: Φ13 to Φ503. Delivery condition: Pre-hardened. Application: Precision plastic molds. It has been heat-treated to 37-43 HRC (surface guarantee), allowing for immediate use after processing. If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Steel

Pre-hardened steel of the free-cutting type for high-performance, precision plastic molds. It has good mirror polishing properties and contains free-cutting elements, resulting in excellent machinability. Stock sizes: 10×106 to 125×305 Delivery condition: Pre-hardened Application: Precision plastic molds It has been heat-treated to 37–43 HRC (surface guarantee), allowing for immediate use after processing. ★If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Steel

Pre-hardened steel with a focus on mirror polishing properties for high-performance, precision plastic molds. It is suitable for molds that prioritize mirror polishing properties and discharge machining finishes, such as transparent products. Stock sizes: Φ13 to Φ303 Delivery condition: Pre-hardened Application: Precision plastic molds Heat-treated to 37-43 HRC (surface guarantee), allowing for immediate use after processing. ★If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Steel

Pre-hardened steel focused on mirror polishing properties for high-performance, precision plastic molds. It is suitable for molds that prioritize mirror polishing properties and electrical discharge machining finishes, such as transparent products. Stock sizes: 10×155 to 155×405. Delivery condition: Pre-hardened. Application: Precision plastic molds. It has been heat-treated to 37-43 HRC (surface guarantee), allowing for immediate use after processing. If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Steel

It is a high carbon steel among carbon steels for machine structures, and strength is obtained by quenching and tempering. JIS reference hardness: HB212–277 Stock sizes: Square 12.7 to Square 160 Flat 6×25 to 155×510 ★If you have desired dimensions, you can request a quote/order from the related link here.

• Special Steel
• alloy
• Steel

It is a high carbon steel among carbon steels for machine structures, and its hardness has been adjusted to HRC25±3 through quenching and tempering. Since it has been heat-treated, it can be used as is after processing, which is helpful for the urgent production of tools and parts, as well as for shortening product delivery times. Hardness: HRC25±3 Stock sizes: Flat 13×210 to 65×310 ★ If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Steel

High hardness, high toughness, high wear resistance cold work die steel By applying QCM64-HARMOTEX to molds made of SKDK11, SKH51, or powder high-speed steel, improvements in productivity and reductions in manufacturing costs can be expected. (1) Productivity improvement (2) Material cost reduction (3) Mold life extension Stock sizes: Φ32 to Φ90 Delivery condition: spheroidized annealed ★If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Steel

This is a new concept martensitic stainless steel. It has a hardness of up to 60 HRC and a strength exceeding 2 GPa, achieving superior corrosion resistance compared to SUS420J2. It also has good grindability, contributing to a reduction in processing time. Stock sizes: Φ13 to Φ80 Delivery condition: Annealed ★If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Steel

This product will arrive at your hands with milling processing (full circumference finishing) applied, providing you with the benefits of shortened processing time. If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• stainless

This product will arrive at your hands with milling processing (full circumference finish), providing you with the benefits of shortened processes. If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• stainless

This product will arrive at your hands with milling processing (full circumference finish), providing you with the benefits of shortened processes. If you have desired dimensions, you can request a quote/order through the related link here.

• Special Steel
• Milling
• stainless

This product will arrive at your hands with milling processing (full circumference finishing), providing you with the benefits of shortened processing time. If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• Steel
• Milling

This product will arrive at your location with milling processing (full circumference finish) applied, providing you with the benefits of shortened processing time. If you have desired dimensions, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Milling

This product will arrive at your location with milling processing (full circumference finishing) applied, providing you with the benefits of shortened processing time. If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Milling

This product will arrive at your location with milling processing (full circumference finish) applied, providing you with the benefits of shortened processing time. If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• Steel
• Milling

This product will arrive at your hands with milling processing (full circumference finishing) applied, providing you with the benefits of shortened processes. If you have desired dimensions, you can request a quote/order from the related link here.

• Special Steel
• Milling
• alloy

This product will arrive at your location with milling processing (full circumference finish) applied, providing you with the benefits of shortened processing time. If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Milling

This product will arrive at your location with milling processing (full circumference finishing) applied, providing you with the benefits of shortened processing time. If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Milling

This product will arrive at your location with milling processing (full circumference finish) applied, providing you with the benefits of shortened processes. If you have desired dimensions, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Milling

This product will arrive at your hands with milling processing (full circumference finish), providing you with the benefits of shortened processes. If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Milling

This product will arrive at your hands with milling processing (full circumference finishing), providing you with the benefits of shortened processes. If you have desired dimensions, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Milling

This product will arrive at your hands with milling processing (full circumference finish), providing you with the benefits of shortened processes. If you have desired dimensions, you can request a quote/order through the related link here.

• Special Steel
• Steel
• Milling

Carbon tool steel for oil quenching equivalent to JIS SKS93. It has been subjected to vacuum degassing refining, ensuring stable quality. It has good hardenability and hardens with oil cooling (minimal cracking and deformation). It excels in toughness and wear resistance, improving the lifespan as a tool. Manganese and chromium are added to SK3 to enhance hardenability. Stock sizes: Φ13 to Φ150 Delivery condition: spheroidized annealed ★If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Steel

Excellent hardenability and wear resistance JIS SKS3 improved alloy tool steel. Due to the addition of special elements, it has greater hardenability compared to JIS SKS3, allowing for uniform high hardness even in relatively large dimensions. The spheroidizing annealing provides good and stable machinability. Stock sizes: Φ13 to Φ150 Delivery condition: spheroidized annealed ★If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Steel

Excellent wear resistance and hardens with air cooling, equivalent to JIS SKD11 cold work die steel. Good hardenability, hardens with air cooling (no concern for cracking due to air cooling). Thermal dimensional changes are very small (thermal distortion is very small, suitable for molds requiring precision). Stock sizes: Φ13 to Φ152 Delivery condition: spheroidized annealed ★If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Steel

Since the hardenability is improved compared to SKD11, issues related to hardness during processes such as vacuum heat treatment will be resolved. Below are the main features: (1) Higher heat treatment hardness than SKD11 (2) Twice the toughness of SKD11 (3) Improvement of large carbides in SKD11 Stock sizes: Φ13 to Φ252 Delivery condition: spheroidized annealed ★If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• alloy
• Steel

For high hardness and ultra-polished corrosion-resistant plastic molds, we use 13Cr stainless pre-hardened steel. It combines corrosion resistance, wear resistance, and ultra-polished finish, making it suitable for molds for flame-retardant resins, glass fiber reinforced resins, and transparent resins. Stock sizes: Φ13 to Φ130 Delivery condition: Pre-hardened 31 to 34 HRC ★ If you have specific dimensions in mind, you can request a quote/order through the related link here.

• Special Steel
• alloy
• stainless

Pre-hardened steel focused on mirror polishing properties for high-performance, precision plastic molds. It is suitable for molds that prioritize mirror polishing characteristics and discharge machining finishes for transparent products. ★ Please contact us through the related link for stock confirmation. If you have specific dimensions in mind, we can check the price. We look forward to your inquiries and orders.

• Special Steel
• alloy
• Steel