Your KVA Martensitic Stainless Steel tubes have been made in the U.S.A. from first quality domestic stainless steel alloys, using the most modern forming, welding and precision thermal processing technology available...

For Bicycle Frame Builders

Machining tips:

• Tubes are hardened and tempered to 38-42HRC, so quality hole saws with cutting fluid/coolant are recommended for best tool life.
• If using abrasive belts/grinding drums for notching, take care not to overheat the tubes. Use coolant or dip in water periodically.

Brazing tips:

• Stainless steel lugs & braze-ons (type 304, 316 or 17-4PH) are recommended with 0.002-0.004” radial clearance.
• Low temp silver brazing alloy (Aufhauser A-56T, Harris Safety-Silv 56, or equivalent) recommended for minimal effect on tube strength.
• Brass brazing not recommended!!!

Welding tips:

• Stainless steel filler wire (ER309L) recommended for all joints - to steel, other stainless steel and KVA stainless steel MS ² tubes.
• Back purge with Argon gas.
• Post-weld tempering optional for improved fatigue performance (350-400°F for 20-30 min).
• Type ER630 (17-4PH) wire can be used, but post-weld tempering as above is suggested.

General info:

• ER309L filler wire and 350 ° F stress-relieve is recommended for the best welded joint performance.
• Steel lugs, braze-ons, mix-n-match tubes can be used but they must be painted to prevent corrosion.
• Take care not to contaminate KVA stainless tubes with rust-causing iron particles:
  • Use dedicated stainless steel sanding belts and or pads
  • Do not use steel wool!!!

For Bicycle Riders

General care instructions:

• Wipe down dirt, mud & grime after long rides with clean cloth.
• A mild soap solution can be used for stubborn road grime. Rinse & dry thoroughly.

Unpainted frames:

• After cleaning, to protect luster & finish, apply hi-quality automotive wax or stainless polish with soft, dry cloth & buff out.
• Alternatively, an anti-corrosion surface treatment spray can be used (Boeshield ^® T-9, Fluid Flim^® or equivalent)

Should any staining/spotting occur:

• Lightly buff with a synthetic textured (Scotchbrite ^®) pad or sponge while following the grain direction.
• Use WD-40 ^®, Boeshield ^® T-9 or similar for lubricant while removing stain.
• Use caution if tubes are mirror polished; check with your builder first and use WD-40 ^® or Boeshield^® T-9 soaked soft cloth and work in small circles.
• Reapply wax, polish or protective coating like Boeshield ^® T-9 or Fluid Flim ^® when finished.
• Do not use steel wool!!!