N700

N700

N700

Product catalog summary
Product Description: BÖHLER N700 is a martensitic precipitation hardenable chromium-nickel-copper steel known for its high strength and toughness. It can be further strengthened through cold forming followed by precipitation hardening treatment.
Applications: This steel is used in various industries including aerospace, automotive, chemical plants, food processing, medical instruments, and power generation. It is suitable for components like blades, shafts, valves, and structural parts.
Chemical Composition: The steel comprises C (0.04%), Si (0.25%), Mn (0.40%), Cr (15.30%), Ni (4.50%), Cu (3.25%), and Nb (0.30%).
Standards: It adheres to standards such as AISI 630, ASTM A564, and others.
Service Temperatures: Suitable for high-temperature applications up to 350°C and cryogenic applications with specific conditions for different temperature ranges.
Heat Treatment: Includes hot forming (1150 to 900°C) and various age hardening conditions (H900 to H1150-M) with specific temperature and time settings.
Mechanical Properties: Detailed mechanical properties are provided for different conditions, including tensile strength and impact strength.
Surface Treatment: Includes nitriding, plasma nitriding, descaling, and passivation to enhance surface properties and corrosion resistance.
Physical Properties: Density is 7.8 kg/dm³, thermal conductivity is 16 W/(m.K), and modulus of elasticity is 200 x 10³ N/mm².
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Catalog excerpts

N700-1

FERRITIC AND MARTENSITIC STEELS, INCL. PRECIPITAION HARDENING STEELS Available Product Shapes Long Products Product Description Martensitic precipitation hardenable chromium-nickel-copper steel possessing high strength and toughness. Further strength increments can be obtained by cold forming, followed by a precipitation hardening treatment. Properties Aircraft and rocket engineering, mechanical engineering, power generation, measuring and control technique Applications Aerospace Comp. for Chemical plants (incl. LNG, FGD, Urea, LDPE, etc.) Comp. for Industrial Gas Compressors Custom Hand Knives Distributors for Component Applications Electronic Industry General Components for Mechanical Engineering Mechanical Engineering / Machine Building General Oth. Automotive components (Turbochargers, Piston Rings, Sensors, etc.) Other Oil and Gas + CPI comps. Power Generation (Gas/Steam/Nuclear) Structural parts (Aerosp) Unknown Components Application Food processing Industry Blades & Shafts for Turbines and Compressors Comps. for Food processing and Animal Feed Distributors or producers of standard parts without knowledge of final applications Forging Applications Industry gear boxes Injection Components Medical Instruments & Implants Other Aerospace Comps. Other Components Other Power Generation Components Pumps and High Pressure Components Tubular Products, Flanges, Fittings Valves and Actuators Well Completion Tools Well Logging Tools Packaging Shafts Turbine and Engine Parts (Aerosp) Wear parts Wellhead, X-mas trees and Manifolds (incl. Tubing hangers), BOPs voestalpine BÖHLER Edelstahl GmbH & Co KG www.voestalpine.com/bohler-edelstahl

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N700-2

FERRITIC AND MARTENSITIC STEELS, INCL. PRECIPITAION HARDENING STEELS Material designation 1.4542 1.4548 EZ6CNU17.04 AISI: 630 AISI 17-4 PH Market grade voestalpine BÖHLER Edelstahl GmbH & Co KG www.voestalpine.com/bohler-edelstahl

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N700-3

FERRITIC AND MARTENSITIC STEELS, INCL. PRECIPITAION HARDENING STEELS voestalpine BÖHLER Edelstahl GmbH & Co KG www.voestalp

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N700-4

voestalpine BÖHLER Edelstahl GmbH & Co KG www.voestalpine

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N700-5

FERRITIC AND MARTENSITIC STEELS, INCL. PRECIPITAION HARDENING STEELS Mechanical properties at room temperature to DIN EN 10088-3 L = Longitudinal, Q = Transverse St = Bars, Bl = Sheet or plate P = Precipitation hardened SR = Stress relieving annealed 1) Not valid for inspection purposes for which tensile strength is the ruling property. 2) Sheet or plate ≥3 mm thickness High temperature properties Mechanical properties at room temperature to ASTM A564 Bars up to 200 mm diameter L = Longitudinal, Q = Transverse 1) Not valid for inspection purposes for which tensile strength is the ruling property....

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N700-6

FERRITIC AND MARTENSITIC STEELS, INCL. PRECIPITAION HARDENING STEELS Precipitation hardening chart High temperature strength chart voestalpine BÖHLER Edelstahl GmbH & Co KG www.voestalpine.c

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N700-7

FERRITIC AND MARTENSITIC STEELS, INCL. PRECIPITAION HARDENING STEELS Dimensional change During solution annealing: Contraction in longitudinal direction approx. 0,2% During precipitation hardening: Contraction at different precipitation hardening temperatures compared with the as solution annealed condition. Surface treatment Nitriding: The nitriding process reduces the steel’s corrosion resistance. It is applied in cases where increased friction and wear resistance is required (e. g. for pump shafts). Plasma nitriding: in combination with precipitation hardening; Hardness penetration depth:...

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N700-8

FERRITIC AND MARTENSITIC STEELS, INCL. PRECIPITAION HARDENING STEELS Physical Properties Temperature (°C / °F) Density (kg/dm³ / lb/in³) Thermal conductivity (W/(m.K) / BTU (IT) ft/hr/ft²/F) Specific heat (J/(kg.K) / BTU (IT) lb/F) Spec. electrical resistance (Ohm.mm²/m / Ohm.inch²/ft) Thermal Expansions Temperature (°C / °F) Thermal expansion (10⁻⁶ m/(m.K) / 10⁻⁶ inch/(inch.F)) For more information see www.voestalpine.com/bohler-edelstahl voestalpine BÖHLER Edelstahl GmbH & Co KG Mariazeller Straße 25 8605 Kapfenberg, AT T. +43/50304/20-0 E. [email protected] www.voestalpine.com/bohler-edelsta...

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