High-speed tools or preferably carbide tools with standard lubrication are normally used.Machining conditions may vary with hardness of material.Can be machined in both solution-treated and precipitation-hardening conditions.To improve stress corrosion resistance after cold forming, re-aging at the precipitation-hardening temperature is recommended.Bend radius in excess of 7T is often required.The value of Kw (Water ionisation constant) and pH with increasing temperature It is clearly evident from the table that the pH of water at 0oC is 7.47, but the same water at 100C will have a pH of 6.14. This will help prevent possible cracking. The new pH level simply tells about the true pH for that solution at that specific temperature. For severe cold working the material should be heat treated to condition H1150.Alloy 17-4 is limited to mild operations since in the annealed (solution treated) condition the material is hard.Cool forgings to below 90☏ to ensure grain refinement.To ensure the best condition for the hardening operations, the forgings must be re-heat treated at 1875-1925☏.Preferred temperature range for hot forming is at 650-900☏, while the steel is still austenitic.To forge, heat uniformly to 2150 / 2200☏ and hold for half hour per inch.Long-term exposure to elevated temperature can result in reduced toughness in the precipitation hardened conditions.Excellent resistance to oxidation to approximately 1100☏.Better toughness is obtained in the weld after a complete heat treatment.Inter-pass temperature must be limited to 248☏.Should not be joined by oxyacetylene welding.Successfully welded by most common fusion and resistance methods.Some applications that frequently use Alloy 17-4 include: Specifications : UNS S17400 Applications:Īlloy 17-4 is commonly used for applications requiring high strength and a moderate level of corrosion resistance. Alloy 17-4 should not be used at temperatures above 572☏ or at very low temperatures. Its mechanical properties can be optimized with heat treatment where very high yield strength up to 180 ksi can be achieved. Alloy 17-4 can be heat treated to a variety of temperatures to develop a wide range of properties. Alloy 17-4 has adequate resistance to atmospheric corrosion or in diluted acid salts where its corrosion resistance is equivalent to Alloy 304 or 430. It is one of the most widely used precipitation hardening grades, as it has high strength hardness up to about 572☏ while demonstrating good corrosion resistance in all heat treated conditions. to post a comment?Ĭreate an account or login in order to post a comment.Alloy 17-4 is a chromium-copper precipitation hardening stainless steel that is used for applications requiring high strength and a moderate level of corrosion resistance. It will cost a couple of dollars but there is usually someone out there who will tell you that you are crazy and then tell you what they think your item is worth.ĭoes anyone know the value of a beutaful montague 7777 6’ glass rod. One way I have used to price items is to put them on ebay with a high reserve price. TRUE TEMPUR CHAMPION STEEL FISGING ROD PATENTS 80990, 1755159 ORIGINAL EYES WITH A SPEED LOCK HANDLE PATENT 2102237 WITH ORIGINAL CORK GRIP WITH A PFLUGER SILK CAST REEL TRADE MARK 1953. Also, I have a number of Herter's rods and reels. My dad also had a True Temper rod, but his model aw Great Lakes. I think these were the main outlets for the rods. Mine was bought at a local hardware store. Recently, I got new guides put on it and started using again for bass, panfish and walleyes. I have Montague casting rod I got for my 12th birthday in 1960. I have no idea of the value but will keep looking. I have the same rod, mine is a 6' Montague Sixty Five made by True Temper. I have one the same as yours but has no marks any were if you could help lt me need info Also, the tip on yours is a different style than mine. Sometime ago someone told me the wood on the handle is oak. Mine were bought at a True Value store years ago. I haven't been able to find a value on these rods but would guess not a whole lot being from True Temper. Mine has a True Temper sticker on the rod, placed directly on the other side of Montague 65-10 5'10". I have three rods which look very familiar to your photos.