Category: "Stainless Steel & Titanium Processing"

47682. White patches after electropolishing cobalt chromium material - July 15

  5358. Algae, fungus, bio-fouling in plating tanks? - July 4

  5422. Alcohol Is Making Electropolished Stainless Steel Peel - May 30

61669. SS430 Wire Has Black Spots. Why? - May 20

61668. 304 steel continuously generates dark residue - May 20

20840. 303 Stainless Steel Passivation Problems - April 15

14182. Frosted, etched, or burnt passivated parts - Type 303 stainless steel - April 14

51990. Parts turn black in Wood's Nickel Strike - March 21

11047. Should electropolishing voltage/amperage be ramped? - March 21

61643. Must welding tint be removed before passivation - March 7

26187. Stainless tank with NaOH at 360 °C at 128 bar - February 27

47682. Electropolishing and Chemical Etching Processes for Cobalt Chromium - February 5

14697. Chatter-like marks after electropolishing? - February 2

25485. Can T316 stainless steel be used 400 feet away from the sea? - November 9

61593. SS420 Pickling and Passivation Problem - October 25

  3649. Need consultant for AMS2488 Type II Anodizing of Titanium RFQ open to all: Miami - October 19

13897. Passivation for type 420SS stainless - October 15

28680. Citric Acid vs. Nitric Acid Passivation - October 3

• Phosphoric acid & sulfuric acid electropolishing of stainless steel - September 18

• Procedure for electropolishing stainless steel - September 16

• Anodizing titanium to green color -- Q&A's open Q. - September 6

• Cleaning step/process after passivation treatment - July 26

• Anodizing Titanium: electrolyte formula - June 9

• Haziness or Cloudiness on Type III Anodized Titanium - June 2

• Rectifier (power supply) choice for anodizing titanium? open Q. - May 25

• 303 Stainless Steel Passivation Discoloration - May 3

• Giving Stainless Steel an Aged Brass Look open Q. - April 19

• Etching titanium to produce crystalline finish? - April 15

• Reduce discolorations on cold-headed 18-8 stainless screws - April 14

• Current density & Voltage for Type 2 anodizing of titanium - April 11

• Blackening process for stainless steel chainmail open Q. - April 7

• Racking material to be used for Titanium anodizing? open Q. - March 27

• Passivation Stains on 17-4 PH Stainless Steel - March 9

• Electropolishing with citric acid - February 19

• Electrolytic etching of titanium - February 11

• Electropolishing/deburring of hypodermic needles - January 10

• Stainless steel laser etch and passivation Q&A - January 10

• Removal of Heat Treat Scale from Stainless Steel open Q. - December 13

• Anodizing titanium black in color - December 8

• Haziness or Cloudiness on Type III Anodized Titanium - December 2

• Passivating long small dia., 316L SS tubing - December 1

• Aesthetic thermal browning of stainless steel open Q. - November 28

• Stainless Steel Discoloration when Heat Treating open Q. - November 26

• Electrochemical De-burring/Grinding of Micro Surgical Knife - November 21

• Electropolishing defect in small area open Q. - November 17

• Anodizing titanium to green color -- electrolytic pre-etch open Q. - November 14

• Medical Implant Boil Test - September 19

• Ratio of phosphoric & sulfuric acid for electropolishing open Q. - September 14

• Hydrofluoric acid vs. ammonium-bifluoride in cleaning & pickling - September 5

• Passivating a part with selective tungsten carbide coating on it open Q. - August 26

• Chemical/Electro polishing of stainless steel - August 21

• Electrical Properties of Passivated Stainless Steel - July 20

• Activation of stainless steel for plating open Q. - July 8

Dark frosty cloud dull finish in electropolishing open Q. - July 3

Stainless steel passivation problem: color inconsistent - June 28

• Stainless Passivation Temperature Ranges - Why is 90-120 °F excluded? - June 28

Titanium galling & anodize/oxidize wear resistance - June 28

• Electropolishing 304 stainless steel, or alternatives to it - June 21

Need titanium bolts & washers blackened RFQ: Tucson AZ - June 9

• 3 interesting open questions about electropolishing stainless steel open Q. - June 3

• 304 Stainless Steel for Liquor Decanter open Q. - May 19

• Does passivated 304 offer same corrosion protection as regular 316? - May 16

• Annealed & passivated stainless parts fail water immersion test - May 12

• Anodizing of titanium: Type II alkaline RFQ: Spring, TX - May 8

• Aging issues with phosphoric acid/sulfuric acid electropolishing solution? Thanks! Resolved :-) - May 5

• Need non-magnetic 17-7 PH material - May 4

• Diffusion Treatment Of 316 Stainless Steel stained it - May 3

• Electropolishing nickel-titanium (nitinol) Q&A's, Problems & Solutions - April 27

• Stainless Steel Electropolishing parameters open Q. - April 18

• Need consultation support of AMS2487/AMS2488 Type II Anodizing Process RFQ Bangalore, India - February 20

• ferric chloride Not Etching Stainless Steel - February 17