Typical applications
- Mechanical engineering applications
- Surgical instruments
Outokumpu Dura grades
Dura 4024
Martensitic grade with slightly increased hardenability (comp. 1.4006). Corrosion resistant in water and steam. For mechanical engineering applications and surgical instruments.
Product forms
Chemical composition
Dura 420/4021
Very popular martensitic grade. Corrosion resistant in water and steam. Low-medium hardness for applications such as cutting utensils, surgical instruments, press plates, brake discs and mechanical parts.
Typical applications
- Springs
- Cutting utensils and surgical instruments
- Press plates
- Brake discs
- Mechanical parts
- Wear resistant applications
Product forms
Chemical composition
Dura 420/4028
Medium-hardness martensitic grade. Corrosion resistant in water and steam. Applied for cutting utensils, surgical instruments, measuring tools, mechanical parts esp. subject to wear.
Typical applications
- Cutting utensils and surgical instruments
- Measuring tools
- Mechanical parts especially in wear resistant applications
- Springs
- Printing industry
Product forms
Chemical composition
Dura 420/4031
Martensitic grade with medium-high hardness . Corrosion resistant in water and steam. Applied for cutting utensils, surgical instruments, measuring tools, mechanical parts subject to wear.
Typical applications
- Cutting utensils
- Surgical instruments
- Measuring tools
- Mechanical parts subject to wear
Product forms
Chemical composition
Dura 420/4034
High-hardness martensitic grade. Corrosion resistant in water and steam. For e.g. professional kitchen knives, top-quality knives, surgical instruments, press plates, brake disks.
Typical applications
- Professional kitchen knives
- Top-quality knives
- Surgical instruments
- Press plates
- Brake disks
Product forms
Chemical composition
Dura 4110
High hardness martensitic grade (comp. 1.4034), but with improved corrosion and wear resistance. Applied for e.g. knife blades, scissors, surgical cutting tools, measuring tools, pump construction, valves.
Typical applications
- Knife blades
- Scissors
- Surgical cutting tools
- Measuring tools
- Pump construction
- Valves
Product forms
Chemical composition
Dura 4116
Similar to 1.4110, but with elevated wear resistance. Applied especially for cutting instruments which undergo partial hardening for excellent wear resistance of functional surfaces.
Typical applications
- Cutting instruments
Product forms
Chemical composition
Dura 4122
Outokumpu’s most corrosion resistant martensitic grade, good resistance in moderately corrosive, low chloride containing environments. Very good mechanical properties and wear resistance. Medium-high hardness. Applied for e.g. surgical instruments, food processing equipment, mechanical parts, machine and pump construction.
Typical applications
- Surgical instruments
- Food processing equipment
- Mechanical parts
- Machine and pump construction
Product forms
Chemical composition
Dura 17-7PH
Precipitation hardening grade with high strength and hardness, good corrosion resistance and satisfactory formability (depending on heat treatment/”Condition”). For e.g. retaining rings, springs, valves and gears, aircraft parts.
Typical applications
- Retaining rings
- Springs
- Valves and gears
- Aircraft parts
Product forms
Chemical composition
Circle Green Dura 4116
Circle Green® is the world’s first towards zero carbon stainless steel. It has the lowest carbon footprint in the industry.
Similar to 1.4110, but with elevated wear resistance. Applied especially for cutting instruments which undergo partial hardening for excellent wear resistance of functional surfaces.
Typical applications
- Cutting instruments
Product forms
Chemical composition
Gamma Dura
La gamma Dura comprende 14 prodotti in acciaio inossidabile per indurimento martensitico e per precipitazione progettati per applicazioni che richiedono un elevato livello di durezza superficiale.
Oltre a una migliore temprabilità, questi prodotti presentano elevate caratteristiche di robustezza e resistenza all'usura. Per questo motivo, le principali alternative ai prodotti della gamma Dura sono gli acciai al carbonio piuttosto che altre gamme di acciai inossidabili.
I prodotti della gamma Dura sono venduti come soluzione ricotta e poi indurita per invecchiamento per l'uso in applicazioni che richiedono durezza e una resistenza alla corrosione superiore a quella offerta dall'acciaio al carbonio. Questi prodotti possono essere utilizzati in tutte le applicazioni, dai coltelli e bisturi di alta qualità fino al carrello di atterraggio degli aerei. I prodotti indurenti per precipitazione vengono induriti mediante uno speciale meccanismo che comporta la formazione di precipitati all'interno della microstruttura. Sia gli acciai inossidabili martensitici sia quelli indurenti per precipitazione sono magnetici.
La nostra gamma Dura è particolarmente adatta per prodotti finali che richiedono un trattamento termico. Nel caso in cui si sia orientati verso acciai inossidabili ad alta resistenza senza requisiti di trattamento termico, i nostri prodotti temprati e laminati della gamma Forta sono’adatti a tali esigenze.
Tutti i prodotti della gamma Dura sono prontamente disponibili in tutto il mondo e vengono consegnati da stabilimenti noti per la loro puntualità nelle consegne. Puoi fare affidamento sugli acciai inossidabili Outokumpu per soddisfare in modo affidabile e costante le specifiche richieste della tua applicazione. I nostri esperti possono anche creare prodotti su misura secondo le tue specifiche precise.
Standards and approvals
Dura range stainless steels meet the following standards:
| ASME SA240M Code Sect. II. Part A |
| ASTM A240/A240M |
| ASTM A240M |
| EN 10088-2 |
| EN 10088-3 |
| EN 10088-4 |
| EN 10088-5 |
Outokumpu meets the most common certifications and approvals, including:
- AD 2000 Merkblatt
- Approval of Material Manufacturers
- Factory Production Control Certificate
- ISO 9001
- ISO 14001
- ISO 50001
- ISO/TS 16949
- NORSOK
- OHSAS 18001
- Pressure Equipment Directive (PED)