Stainless Steel Nitronic 33 Special Alloys For Medical With Yield Strength 469MPa

Stainless steel Nitronic 33 (UNS S24000, XM-29) wire, strip, tube and bar for MRI scanner supports, fittings etc

1 PRODUCT

Stainless steel Nitronic 33 (UNS S24000, XM-29) for MRI scanner supports, fittings etc.

Nitronic 33 Stainless Steel is available in bar, rod, wire, forging billets, sheet, strip, foil, extrusions, seamless tubing, shape etc.

2 OVERVIEW

Nitronic 33 is a low nickel austenitic stainless steel having an annealed yield strength twice that of 304. Better resistance to stress corrosion cracking than 304. Low magnetic permeability even after severe cold working.

3 APPLICATION

Cryogenic tanks valves, piping, flanges, structural supports. Abrasion/Wear Resistance screens, racks, and wear plates. Electrical (low magnetic permeability) conduit shielding, MRI scanner supports, fittings, underground transmission risers and pipe and electronic support members. Process equipment, heat exchangers, pressure vessels and piping where 304 is borderline with respect to stress corrosion cracking.

4 CHEMICAL COMPOSITION (wt%):

5 PHYSICAL PROPERTY

Density at 70°F (21°C): 7.755 g/cm³ (0.28lb/in³)

Modulus of elasticity in tension: 29.0 x 10³ ksi (200 x 10³ MPa)

Magnetic Permeability: H = 500: Annealed: < 1.0014

Electrical resistivity

Thermal conductivity

Mean coefficient of thermal expansion

6 CORROSION RESISTANCE

Refer to NACE (National Association of Corrosion Engineers) for recommendations

7 MECHANICAL PROPERTIES

Annealed typical properties

Ultimate Tensile Strength: 115 Ksi (793 MPa)

Yield Strength: 68 Ksi (469 MPa)

Elongation: 50% min

Hardness: Rb 95

Tempered typical properties

Nitronic 33 can be cold worked to various temper ranges.

8 MACHINING AND FORMING

Forging

Heat to 2000°F, soak to equalize, then heat to 2150°F and equalize prior to forging.

Annealing

Soak at 1900-2050°F, quench quickly in air or water.

Hardening

Hardening this alloy requires cold working. It will not harden with exposure to thermal treatment.

9 STANDARD SPECIFICATION

ASTM A240(XM-29) Heat Resisting Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Strip for Pressure Vessels

ASTM A276(XM-29) Bars and Shapes

ASTM A313(XM-29) Stainless Steel Spring Wire

ASTM A314(XM-28) Stainless and Heat Resisting Steel Billets and Bars for Forging

ASTM A479 / ASME SA479 (XM-29) Bars and Shapes for Use in Boilers and Other Pressure Vessels

ASTM A580(XM-29) Stainless steel wire

ASTM A688 (XM-29) Welded Austenitic Stainless Steel Feed water Heater Tubes

10 COMPETITIVE ADVANTAGE

(1) More than 50 years experience of research and develop in high temperature alloy, corrosion resistance alloy, precision alloy, refractory alloy, rare metal and precious metal material and products.
(2) 6 state key laboratories and calibration center.
(3) Patented and innovative technologies.
(4) Ultra-purity smelting process VIM + IG-ESR + VAR.

(5) High performance material.

11 BUSINESS TERM

With background of more than 50 years of material R&D experience, CMMC is a high-tech enterprise specialized in production of high temperature alloys, corrosion resistant alloys, precision alloys, wear resistant alloys, refractory alloys and other special alloys.

With main smelting equipments by CONSARC, including vacuum induction melting furnace (VIM 3 metric tons x 1 set), inert gas protective electric slag remelting furnace (IG-ESR 5 metric tons x 1 set, 10 metric tons x 2 sets), vacuum arc remelting furnace (VAR 10 metric tons x 1 set), CMMC has an annual production capacity of 3000 metric tons.

Established in 2016, CMMC stll having an investing plan of more than 30 million U.S.Dollars in the coming 5 years. CMMC aspires to become an internationally renowned supplier and leading brand of key materials for core components of high-end equipments in the application fields of aerospace, clean energy, petroleum, chemical engineering, medical, marine engineering, food and automobile, etc.

Our main products include forgings, bars, rods, tubulars, plates, sheets, strips, wire rods, precision wires, etc.

From ultra-pure smelting,  hot and cold forming, heat treatment, mechanical processing to finish machining, CMMC provides the whole process of one-stop professional services.

From demand idea to research and development, from technology innovation to promoting of products upgrading, from customer's puzzles and difficulties to final solution, from smelting to market, no matter wherever, whenever, whatever and however, CMMC always try to provide satisfactory one-stop service.

By providing better materials to make a better world, CMMC never give up the dream.