medium Concentration (mass fraction) (%) Temperature / °C Corrosion rate / mm / a (years) Corrosion resistance Inorganic acid hydrochloric acid 1 Room temperature / boiling 0.000/0.345 Good/good 5 Room temperature / boiling 0.000/6.530 Good/poor 10 Room temperature / boiling 0.175/40.87 Good/poor 20 Room temperature / 1.340/- difference/- 35 Room temperature / 6.660/- difference/- sulfuric acid 5 Room temperature / boiling 0.000/13.01 Good/poor 10 Room temperature / 0.230/- good/- 60 Room temperature / 0.277/- Good/poor 80 Room temperature / 32.660/- difference/- 95 Room temperature / 1.400/- difference/- Nitric acid 37 Room temperature / boiling 0.000/<0.127 Excellent / excellent 64 Room temperature / boiling 0.000/<0.127 Excellent / excellent 95 Room temperature / 0.0025/- excellent/- Phosphoric acid 10 Room temperature / boiling 0.000/6.400 Good/poor 30 Room temperature / boiling 0.000/17.600 Good/poor 50 Room temperature / 0.097/- excellent/- Chromic acid 20 Room temperature / boiling <0.127/<0.127 Excellent / excellent Nitric acid + hydrochloric acid 1:3 Room temperature / boiling 0.0040/0.127 Excellent / excellent 3:1 Room temperature / <0.127/— excellent/- Nitric acid + sulfuric acid 7:3 Room temperature / <0.127/— excellent/- 4:6 Room temperature / <0.127/— excellent/- Organic acid acetic acid 100 Room temperature / boiling 0.000/0.000 Excellent / excellent formic acid 50 Room temperature / 0.000/- excellent/- oxalic acid 5 Room temperature / boiling 0.127/29.390 Good/poor 10 Room temperature / 0.008/- excellent/- Lactic acid 10 Room temperature / boiling 0.000/0.033 Excellent / excellent 25 -/boiling —/0.028 -/excellent Formic acid 10 -/boiling —/1.270 -/good 25 —/100 —/2.440 -/difference 50 —/100 —/7.620 -/difference Danlic acid 25 Room temperature / boiling <0.127/<0.127 Excellent / excellent Citric acid 50 Room temperature / boiling <0.127/<0.127 Excellent / excellent Stearic acid 100 Room temperature / boiling <0.127/<0.127 Excellent / excellent Alkaline solution Sodium hydroxide 10 -/boiling —/0.020 -/excellent 20 Room temperature / boiling <0.127/<0.127 Excellent / excellent 50 Room temperature / boiling <0.0025/0.0508 Excellent / excellent 73 -/boiling —/0.127 -/good Potassium hydroxide 10 -/boiling —/<0.127 -/excellent 25 -/boiling —/0.305 -/good 50 30/boiling 0.000/2.743 Good/poor Ammonium hydroxide 28 Room temperature / 0.0025/- excellent/- Sodium carbonate 20 Room temperature / boiling <0.127/<0.127 Excellent / excellent Armonia 20 Room temperature / 0.0708/- excellent/- Inorganic salt solution Ferric chloride 40 Room temperature / 95 0.000/0.002 Excellent / excellent Ferrous chloride 30 Room temperature / boiling 0.000/<0.127 Excellent / excellent Lead chloride 10 <0.127/<0.127 Cuprous chloride 50 <0.127/<0.127 Ammonium chloride 10 <0.127/<0.000 Calcium chloride 10 <0.127/<0.000 Aluminum chloride 25 <0.127/<0.127 Magnesium chloride 10 <0.127/<0.127 Nickel chloride 5-10 <0.127/<0.127 Barium chloride 20 <0.127/<0.127 Copper sulfate 20 <0.127/<0.127 Ammonium sulfate 20 ° C saturation <0.127/<0.127 Sodium sulfate 50 <0.127/<0.127 Lead sulphate 20 ° C saturation <0.127/<0.127 Cuprous sulfate 10 <0.127/<0.127 30 <0.127/<0.127 Silver nitrate 11 Room temperature / <0.127/— excellent/- Organic compound Benzene (containing trace amounts of HCl, NaCl) Vapor and liquid 80 0.005 excellent Carbon tetrachloride Ibid. boiling 0.005 Tetrachloroethylene (stable) 100% vapor and liquid 0.0005 Tetrachloroethylene (H 2 O) 0.0005 Trichloromethane 0.003 Trichloromethane (H 2 O) 0.127 good Trichloroethylene 99% vapor and liquid 0.00254 excellent Trichloroethylene (stable) 99 0.00254 formaldehyde 37 0.127 good Formaldehyde (containing 2.5% H 2 SO 4 ) 50 0.305 good Note: 1. Corrosion resistance grade is divided into three levels: Excellent - corrosion resistance, corrosion rate is below 0.127mm / a. Good - moderate corrosion resistance, corrosion rate between 0.127-1.27mm / a. Poor - not resistant to corrosion, corrosion rate is above 1.27mm / a. 2. Pure titanium in most media, especially those with high corrosion resistance in a neutral, oxidizing medium and sea water. Titanium in seawater corrosion resistance than aluminum alloy, stainless steel and nickel alloys is higher in the air industry, agriculture and marine environment, although a few years, is not discolored surface. Hydrofluoric acid, sulfuric acid, hydrochloric acid, orthophosphoric acid and some hot concentrated organic acids have a greater corrosion to titanium (see table above), and hydrofluoric acid has a high corrosive effect on titanium regardless of concentration and temperature. Titanium has high stability to various concentrations of nitric acid and chromic acid, and has high corrosion resistance in alkali solutions and most organic acid and inorganic salt solutions. 3. Titanium does not undergo local corrosion and intergranular corrosion, and corrosion is performed uniformly. 4. The corrosion resistance of titanium alloys is similar to that of industrial pure titanium, which is why titanium alloys are widely used in the chemical and shipbuilding industries. CNC machining/lathe machining turning is the workpiece is fixed on the lathe, using high speed rotating machine drives the workpiece, the turning. tool on the workpiece so the product shape is round. The maximum of our machines can clip the weight of 200Kg, maximum diameter of 450mm, length of 750mm. high speed 3000RPM. processing materials are commonly used in steel, copper, aluminum, stainless steel POM, PS, PMMA, and other metal and plastic. The CNC machining turning precision of 0.01mm. concentric 0.01. we have specialized equipment to test products, these instruments include: TESA Grohe, micrometer, projector, calipers. Product surface treatment has anode, electroplating, sand blasting, passivation, surface drawing, spraying, laser carving, such as LOGO, etc..CNC machining Turning application in a variety of industries, including: cars, ships, communications, medical equipment, industrial automation equipment. Cnc Machining Turning,Anodized Aluminum Cnc Machining Turning,Brass Cnc Machining Turning,CNC Machining Part Hong Kong RYH CO., LTD , https://www.cncmachiningpart.com