Announcement Of The Ministry Of Industry And Information Technology On The Release Of The First Batch Of Application Demonstration Guidance Catalog Of Key New Materials (2024 Version)
Source: Excerpt from the "Notice of the Ministry of Industry and Information Technology on the Release of the First Batch Application Demonstration Guidance Catalog of Key New Materials (2024 Edition)" (hereinafter referred to as the "Catalogue").
According to the new version of the Catalog, a total of 299 key new materials are divided into three categories: advanced basic materials, key strategic materials, and cutting-edge new materials. Among them, the titanium material part is organized as follows:
Titanium alloy material
Titanium alloy rod and wire
(1) Ultra-high-strength titanium alloy rods (Φ15~300mm): after solid solution aging, the tensile strength is ≥1400MPa, the yield strength is ≥1300MPa, and the elongation is ≥6%; the fracture toughness index is greater than 55MPa·m1/2;
(2) Large single weight titanium alloy disc wire: specifications Φ3~15mm, single roll weight ≥100kg, annealed state: tensile strength ≥920MPa, elongation ≥14%, area shrinkage ≥40%.
(3) Ultra-high strength titanium alloy wire (Φ6~15mm): after solid solution aging, tensile strength ≥ 1500MPa, yield strength ≥ 1400MPa, elongation ≥ 8%; shear strength ≥ 800MPa; fracture toughness ≥ 45MPa·m1/ 2.
Injection molded titanium alloy
(1) TC4: tensile strength ≥950MPa, yield strength ≥850MPa, elongation ≥3%, density ≥4.35g/cm3, hardness ≥300HV, carbon content ≤0.15%, oxygen content ≤0.35%;
(2) Ti: tensile strength ≥500MPa, yield strength ≥400MPa, elongation ≥5%, density ≥4.3g/cm3, hardness ≥150HV, carbon content ≤0.15%, oxygen content ≤0.35%.
Precision titanium alloy castings
(1) Thin-walled complex structure precision titanium alloy castings: grades ZTC4, ZTA15, tensile strength at room temperature ≥890MPa, yield strength ≥820MPa, maximum size of castings ≥Φ1800mm, minimum wall thickness ≤3mm, weight ≥500kg, surface roughness Ra Range 3.2～6.3μm, dimensional accuracy CT5～CT7 level
(2) Large thin-walled complex structure precision high-temperature resistant titanium alloy castings: the tensile strength of the castings at room temperature is ≥930MPa, the yield strength is ≥820MPa, and the elongation is ≥10%; the tensile strength at 500°C is ≥630MPa, and the yield strength is ≥500MPa. Elongation ≥12%; tensile strength at 550℃ high temperature ≥540MPa, yield strength ≥450MPa, elongation ≥15%; maximum size of casting ≥1500mm, minimum wall thickness ≤3mm, weight ≥70kg, surface roughness Ra range 3.2~ 6.3μm, dimensional accuracy CT6~CT7 level;
(3) High pressure-bearing and extremely complex flow channel low-temperature resistant titanium alloy castings: the tensile strength of the casting at room temperature is ≥740MPa, the yield strength is ≥660MPa, and the elongation is ≥9%; the tensile strength at -253°C is ≥1350MPa, and the elongation is ≥11 %; The minimum wall thickness of the casting is ≤3mm, the surface roughness is 3.2~6.3mm, the dimensional accuracy is CT6~CT7, and the water pressure is 67MPa and the pressure is maintained for 15 minutes without leakage.
Titanium-aluminum intermetallic compound forgings for aerospace use
Tensile properties at room temperature: tensile strength ≥ 1050MPa, yield strength ≥ 850MPa, elongation ≥ 5%; shrinkage of area ≥ 6%; tensile properties at 650°C: tensile strength ≥ 800MPa, yield strength ≥ 700MPa, elongation ≥ 10 %; area shrinkage ≥12%; durability life at 650℃/360MPa ≥100h; residual deformation at 650℃/160MPa/100h ≤0.2%; room temperature fracture toughness KIC≥40MPam1/2.
High-performance copper-titanium alloy strips and foils
Thickness ≥0.035mm, tensile strength ≥900MPa, elongation ≥6%, hardness HV≥300, conductivity ≥12%IACS, surface roughness Ra≤0.15μm.
Biomedical and biodegradable materials
High-performance titanium alloy wire for scoliosis connecting rods
Tensile strength 980~1100MPa, yield strength ≥900MPa, elongation ≥15%, area shrinkage ≥40%; under the test conditions of loading roller spacing 76mm and support roller spacing 228mm, the maximum load of dynamic four-point bending fatigue is 490N, cycle 2.5 million times per week.
Medical titanium nickel wire strip and platinum alloy wire
(1) Titanium-nickel ultra-thin strip: thickness 0.02~0.05mm, width 0.05~0.15mm, tensile strength ≥1400MPa, elongation ≥3%, oxygen content ≤300ppm, carbon content ≤100ppm;
(2) Titanium-nickel round wire: diameter 0.02~1.5mm, tensile strength ≥1300MPa, elongation ≥12%, oxygen content ≤300ppm, carbon content ≤100ppm, maximum size of inclusions ≤20.0μm, area ratio of inclusions ≤ 2.8%, the consistency of the austenite transformation end temperature Af in the fully annealed state is ±5°C;
(3) Platinum alloy wire; Purity: total impurity content ≤ 0.05%, oxygen content ≤ 100ppm, carbon content ≤ 20ppm; composition: platinum tungsten, platinum nickel, platinum iridium and other alloy elements composition deviation ≤ ± 0.5%; size: Φ0 .02～0.05mm; dimensional tolerance: wire diameter Φ0.02～0.1mm is ±0.002mm, wire diameter Φ0.1～0.5mm is ±0.005mm; mechanical properties: platinum tungsten, platinum nickel alloy ultra-fine wire: resistance Tensile strength ≥1200MPa, elongation ≥2%; platinum-iridium alloy ultra-fine wire: tensile strength ≥600MPa, elongation ≥2%.
Cutting edge materials
Alloy powder for 3D printing
(1) Titanium alloy powder: particle size range 15~200μm, sphericity ≥94%, oxygen content ≤100ppm, Hall flow rate ≤30s/50g, hollow powder ≤0.8%, number of non-metallic inclusions ≤10/kg, loose Packing density ≥50%;
(2) High temperature alloy powder: particle size range 15~150μm, sphericity ≥98%, oxygen content ≤50ppm, Hall flow rate ≤14s/50g, hollow powder ≤0.8%, number of non-metallic inclusions ≤10/kg;
(3) High temperature titanium alloy powder: particle size range 15~53μm, sphericity ≥95%, oxygen content ≤200ppm, Hall flow rate ≤35s/50g, hollow powder ≤0.5%, bulk density ≥50%;
3D printed titanium alloy shell for steering gear
The tensile strength of the shell at room temperature is ≥895MPa, the yield strength is ≥825MPa, and the elongation is ≥10%; the high temperature tensile strength at 400°C is ≥620MPa, the yield strength is ≥570MPa, and the elongation is ≥12%; the metallurgical quality meets the requirements of GJB2896A for Class I and Class B castings. Require.
High performance titanium alloy powder for hot isostatic pressing
Brands: TA1, TC4, TA15 and TiAl; index requirements: particle size 45~240μm, fluidity ≤30s/50g, median diameter D50≤240μm, bulk density ≥50% theoretical density, oxygen content ≤0.08%, sphericity ≥96%.
Titanium alloy powder for injection molding
Brands: TA1, TC4 and TA15; index requirements: particle size ≤ 45 μm, fluidity ≤ 38s/50g, median diameter D50 ≤ 45 μm, bulk density ≥ 50% of theoretical density, oxygen content ≤ 0.10%.
