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Rene 41

What is Rene 41?

Rene 41 is a high-performance stainless steel alloy manufactured by the Krefeld, Germany-based Sandvik Materials Technology. It is an austenitic precipitation-hardening steel boasting excellent corrosion resistance and high strength. The low carbon content of this material makes it ideal for use in applications such as seawater pumps and valve components where stress cracking is of concern. Furthermore, its higher chromium levels give it superior oxidation resistance to other common grades of stainless steel alloys. Its suitability for cryogenic applications and capacity to quickly regain strength after cold forming into desired shapes makes Rene 41 an attractive choice across various industries, including aerospace, defence, medical and nuclear.

Applications of Rene 41

Rene 41 is a steel alloy originally developed by Uddeholm AB in Sweden to offer superior corrosion resistance and excellent mechanical strength for industrial and medical applications. It has an excellent combination of high hardness, wear resistance, fatigue strength, creep resistance at elevated temperatures and toughness due to its high chromium content. A few applications of Rene 41 include components used in jet engines such as turbine blades, fasteners such as bolts and nuts in oil pipelines, cutting tools such as knives blades for food processing machines, surgical scalpels for medical procedures with extremely thick tissue structures or other hardware that require superior corrosion resistance against acidity like coins produced from noble metals.

Physical properties of Rene 41

Rene 41 is a type of martensitic stainless steel with superior mechanical strength, good corrosion resistance, and high-temperature oxidation resistance. Additionally, it features an excellent combination of toughness and wear resistance when exposed to various industrial environments. It has a relatively high content of chromium (17-19%) and tungsten (1-2%), providing superior hardness and excellent fatigue strength in the annealed condition.

Temperature, °F 70 1200 1400 1600

Ultimate Tensile Strength, ksi 183 162 152 103

0.2% Yield Strength, ksi 119 111 109 84

Elongation, % 21 14 17 11

Hardness, Rockwell C 33 - 40 – – –

Typical Rupture Strength, Heat Treated, Sheet - Stress to Rupture at Indicated Time

Temperature, °F 1200 1400 1600

100 Hours, ksi 107 63 23

Mechanical properties of Rene 41

Rene 41 is an alloy of cobalt, chromium, tungsten and molybdenum with superior corrosion and wear resistance. It has a high tensile strength of up to 1200 MPa, good fatigue strength, excellent hardness and wear-resistance properties, and high thermal stability. Its machinability is also very good due to its low carbon content.

Hardness, Brinell 334 334 Estimated from Rockwell C value for Brinell test with 3000 kg load/10 mm diameter ball

Hardness, Knoop 363 363 Estimated from Rockwell C value.

Hardness, Rockwell C 36 36  

Hardness, Vickers 349 349 Estimated from Rockwell C value.

Tensile Strength, Ultimate 1241 MPa 180000 psi  

Tensile Strength, Yield 793 MPa 115000 psi 0.2% Offset

Elongation at Break 20 % 20 %  

Reduction of Area 25 % 25 % 

Chemical composition of Rene 41

Rene 41 is a high-performance martensitic stainless steel developed by Dofasco. It has excellent wear and abrasion resistance and superior corrosion resistance to other steels. The chemical composition of Rene 41 includes iron (Fe), chromium (Cr), molybdenum (Mo), carbon (C), manganese (Mn) and silicon (Si). The exact percentages depend on the grade of Rene 41 but generally contain about 14-15% Cr, 0.5%-2% Mo, 0.3%-0.6% C, 1-2% Mn, and 0.75%-1 Si%. Together these elements provide exceptional strength and hardness that allow for several applications, from machining components to cutlery knives!

What is the machinability of Rene 41?

Rene 41 has excellent machinability, allowing for high-precision cutting and higher turning speeds.

What is the thermal expansion of Rene 41?

Rene 41 has a coefficient of thermal expansion (CTE) of 6.3 x 10^-6/°C in the temperature range of -50 °C to 200 °C.

What is the hardness of Rene 41?

Rene 41 has a Rockwell Hardness of C62.5, making it one of the hardest steels available.

What is the history of Rene 41?

Rene 41 is a highly corrosion-resistant stainless steel alloy developed in 2001 by Sandvik AB. It offers superior mechanical properties and improved pitting resistance, making it an excellent choice for medical, aerospace and chemical applications.

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