Baoji Zhipu Non-Ferrous Metals Processing Co.,Ltd is one of the most famous China niobium plate manufacturers and suppliers, welcome to wholesale cheap niobium sheet products from our company and factory. Niobium metal is gray.melting point2468℃,boiling point4742℃,density8.57g/cm³.Niobium metal is stable in the air at room temperature.In the oxygen niobium metal not be completely oxidation.Under the high temperature niobium metal can be combined with C,N,S directly.And niobium metal can be with Ti,Zr,W to alloy.Not with inorganic acid or alkali, not soluble in aqua regia, but soluble in hydrofluoric acid. Brand name niobium plate grade Nb1,Nb2,NbZr1 Standard GB/T3630-2006 purity > 99.95% state annealing state(M) or hard state(Y) specification: Thickness(mm) width(mm) length(mm) foil 0.025~0.10 30≤W≤200 L≥200 sheet 0.10~0.50 30≤W≤500 30≤L≤1000 Plate/board 0.50-10 30≤W≤500 50≤L≤2000 Special specification according to customers' request Medical composition: grade Element content(%) Zr Ti C N O H Ta Fe Si W Ni Mo Cr Hf Nb Nb1 0.02 0.002 0.01 0.015 0.015 0.001 0.10 0.005 0.005 0.03 0.005 0.010 0.002 — remain Nb2 0.02 0.005 0.02 0.05 0.025 0.005 0.25 0.03 0.02 0.05 0.01 0.05 0.01 — remain NbZr1 0.8~1.2 0.02 0.01 0.01 0.015 0.0015 0.10 0.005 0.005 0.03 0.005 0.01 0.002 — remain C-103 0.7 0.7~1.3 0.015 0.015 0.023 0.002 0.5 — — 0.5 — — — 9.0~11.0 remain Cb752 2.0~3.0 0.2 0.015 0.01 0.02 0.0015 0.5 — — 9.0~11.0 — — — 0.2 remain Tolerance range: thickness Tolerance thickness width Tolerance Width length Tolerance length ＞0.1~0.2 ±0.015 30~200 ±2.0 30≤L≤1500 ±3.0 ＞0.2~0.3 ±0.02 30~300 ±3.0 30≤L≤1500 ±3.0 ＞0.3~0.5 ±0.03 30~300 ±3.0 30≤L≤1500 ±3.0 ＞0.5~0.8 ±0.04 30~300 ±3.0 30≤L≤1500 ±3.0 ＞0.8~1.0 ±0.06 30~300 ±3.0 30≤L≤1500 ±3.0 ＞1.0~1.5 ±0.08 30~1000 ±4.0 30≤L≤2000 ±3.0 ＞1.5~2.0 ±0.12 30~1000 ±4.0 30≤L≤2000 ±3.0 ＞2.0~3.0 ±0.18 30~1000 ±4.0 30≤L≤2000 ±3.0 ＞3.0~4.0 ±0.18 30~1000 ±4.0 30≤L≤2000 ±3.0 ＞4.0~6.0 ±0.20 30~1000 ±4.0 30≤L≤2000 ±3.0 Niobium plate grade:Nb1,Nb2,NbZr1,Standard:GB/T3630-2006;purity:> 99.95%; state:annealing state(M) 或 hard state(Y);Niobium metal is gray.melting point2468℃,boiling point4742℃,density8.57g/cm³.Niobium metal is stable in the air at room temperature.In the oxygen niobium metal not be completely oxidation.Under the high temperature niobium metal can be combined with C,N,S directly.And niobium metal can be with Ti,Zr,W to alloy.Not with inorganic acid or alkali, not soluble in aqua regia, but soluble in hydrofluoric acid.