Technical Requirements 1. titanium coil titanium and titanium alloy tubes chemical composition shall conform to titanium elbow GB / T3620.1, and when the demand side reinspection titanium fittings, tolerance chemical components comply with GB / T3620.2 of. 2. The pipe diameter tolerances shall conform to a specified table. 3. The pipe wall thickness tolerances shall not exceed its nominal wall thickness of ± 12.5% ??niobium coil, pipe wall thickness tolerance does not apply to weld titanium welded tubes. Titanium is a new type of metal, and the performance of the carbon-containing titanium impurity content of nitrogen, hydrogen, oxygen and so on, the most pure titanium iodide impurity content not exceeding 0.1%, but its low strength, high ductility. 99.5% of the performance of industrial pure titanium as: density ρ = 4.5g / cm3, a melting point of 1725 ℃, thermal conductivity λ = 15.24W / (mK), the tensile strength σb = 539MPa, elongation δ = 25%, reduction of area rate ψ = 25%, the elastic modulus E = 1.078 × 105MPa, the hardness HB195. Inco Cornell coil | coil | djeke zirconium elbow by Special Metals Co., Ltd. Weifang djeke. Weifang djeke Special Metals Ltd. (www.taihuanreqi.com) (www.taihuanreqi.com) strong, credible, Shandong Weifang chemical equipment industry has accumulated a large number of loyal customers. The company better work attitude and continuous improvement will lead djeke innovative ideas into the brilliant and you work for a better future! You can also access (www.taihuanreqi.com/supply_details_45373095.html), for more information about the company.