News
- Apr. 18, 2025 The civil engineering package has been updated with the addition of “Hat+H (Hat-type sheet pile for Deep excavation)” and “STEEL PIPE PILES with ribs x Sat-in Pile Foundation”.
- Apr. 02, 2025 Designing Metal TranTixxii to be Used in the Largest Quantity in the World on Taiwanese Temple Roof
- Mar. 10, 2025 Nippon Steel Obtained SuMPO EPD Certifications for Pipes and Tubes Used in Chemical Industry and for Boilers
- Dec. 12, 2024 Titanium with Aesthetic Appearance “TranTixxii” Service Life Warranty Launch —Launch of a maximum 150-year warranty through additional extensions—
- Oct. 31, 2024
Launch of the overseas version of ProStruct™, a solution brand for the construction industry
—Expanding the packaged series of steel materials and solution technology to overseas construction markets— - Oct. 30, 2024 Participation in the Japan Pavilion at ADIPEC, the Energy-Related Exhibition in the Middle East
- Oct. 07, 2024 Nippon Steel Obtained SuMPO EPD (Formerly EcoLeaf) Certificationsfor Its Hot Extruded Steel Shapes
- Jul. 10, 2024 Long-term OCTG supply contract with Aker BP renewed –Strengthens strategic partnership through stable supply of OCTG–
- Jul. 03, 2024 Long-term OCTG supply contract with Equinor renewed –Strengthens strategic partnership through stable supply of OCTG–
- Jun. 14, 2024 Acceptance of Orders for High-Alloy Seamless OCTG and Employment of Green Steel “NSCarbolex Neutral” Finalized for CCS to Be Used in Construction Project for Blue Ammonia Manufacturing Plant in the State of Qatar
- May. 15, 2024 Adoption of Coating Cycle Extension Steel “CORSPACE” for the First Time in Overseas ODA Bridge Construction
- Apr. 23, 2024 Participation in OTC, an Energy-Related Exhibition in the U.S.
- Mar. 22, 2024 Designing Titanium TranTixxii wins the European “iF DESIGN AWARD 2024” —The world's first non-ferrous metal material to receive the award—
- Sep. 28, 2023 The Adoption of “NSCarbolex Neutral” steel product for geothermal project in the Netherlands operated by 85 Degrees Renewables.
- Mar. 11, 2022 Nippon Steel's TranTixxii and NIPPON STEEL Stainless Steel Corporation's NSSC220M featured on the roof of an international conference center in Jiangsu, China
- April 22, 2021 Nippon Steel to Launch ZAM®-EX high corrosion resistant coated steel sheets for overseas markets
- Oct. 01, 2020 Our new product "FeLuceTM" (hairline-finished electroplated steel sheet) wins the Good Design Award 2020 ～Our first steel sheet to win the Good Design Award～
- Feb. 14, 2019 NSSMC Receives Shell’s Supplier Award
- Jul. 30, 2018 Execution of Strategic Partnership with BP Oman
- Jul. 30, 2018 "The beauty of distinctive gradations make people feel nature" was posted.
- Jul. 26, 2018 VAM® 21 HT CLEANWELL® DRY ST First Running
- Jul. 19, 2018 Steel Wires Joint Venture Company for Cold Heading and Forging in USA (NSCI) holds an Opening Ceremony
- Jun. 27, 2018 NSSMC and Standard Steel Receive TTX “Excellent Supplier 2017” Award
- May. 29, 2018 NSSMC Named a Top 100 Global Innovator in 2017 for Sixth Consecutive Year
- Apr. 25, 2018 Steel Wires Joint Venture Company for Cold Heading and Forging in USA (NSCI) Starts Commercial Production
- Apr. 17, 2018 Strengthening Supply System for Ultra-high-tensile Steel Sheets New CGL to be installed at Kimitsu Works
- Feb. 27, 2018 Nippon Steel & Sumikin Crankshaft, NSSMC’s manufacturing and sales subsidiary of crankshafts in the U.S., earns Diamond Supplier Award from Navistar
- Aug. 04, 2017 NSSMC’s proprietary titanium product TranTixxii™ is adopted for cladding of a theater in Jiangsu Province, China
Die materials
We supply die materials designed to meet our customers' needs.
Characteristics
SD steel as plastic forming die material
- Pure steel made with a special refining method is used.
- Optimal heat treatment is used to produce steel material with little treatment distortion.
- Using fixed forging greater uniformity of the inside and outside structures is achieved.
Fixed forging reduces directionality.
- Carrying out special treatment, surface texturing is improved.
- Using shape forging, we can make materials that are close to the shape of the product.
Examples of shaped products
Die materials for hot forging SDH steel / DK steel
- We have the largest crankshaft forging line in Japan. We supply die materials based on the experience we have gained in its operation.
- We select die materials and surface treatments based on the knowledge we have acquired from the results obtained in the operation of our own line.
Explore
| Steel types | Standard | Hardness Hs (HRC) | Applications |
|---|---|---|---|
| SD18T | JIS S55C improved | 30±2 (13) | S55C free-cutting steel with high thermal conductivity |
| SD77 | AISI P20 equivalent | 41 - 46（31） | P20 equivalent material with good weldavility, machinability and wear-resistance |
| SD100 | − | 47±2 (34) | wear-resistance |
| Steel types | Yield point (N/mm2) |
Tensile strength (N/mm2) |
Elongation (%) |
Reduction of area (%) |
Impact value (J/cm2) |
Hardness (Hs) |
|---|---|---|---|---|---|---|
| SD18T | 430 | 720 | 25 | 47 | 38 - 44 | 30 |
| SD61 | 666 | 872 | 22 | 63 | 88 - 196 | 38 |
| SD77 | 859 | 969 | 19 | 49 | 41 - 46 | 42 |
| SD100 | 911 | 1078 | 18 | 55 | 49 - 69 | 47 |
| Standard | Steel types | Properties | Applications | |||
|---|---|---|---|---|---|---|
| Wear-resistance | Heat-cracking resistance | Fracture-resistance | Machinability | |||
| SKT4 improved | SDH21 | B | B | B | A | For hammer forging |
| SKD61 improved | SDH3 | B | A | A+ | B | For hot forging |
| DK65 | A | A | B | B | ||
| SDH52 | A | A | B | B | ||
Super [A＋・A・B・C] Inferior
Contact Information
For further product information
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