The high-strength 51CrV4 spring steel was used as sample parabolic leaf springs material, and heat treatments and shoot peening were applied to increase the material strength. 5160 Steel..For a Real Leaf Spring???? - Metallurgy and Jan 18, 2019 · 5160 leaf springs into blades..but I'm looking to turn 3/16" x 1 1/2" 5160 bar into a leaf spring. Let me explain a little. Thanks to you guys who are forging blades, these blade forums are the only place on the net that I've been able to find any real information about heat treating 5160.
Jan 18, 2019 · What I can tell you is that 36-44 is a large window, and your heat treat shop should be able to hit a number plus or minus 2 HRC. Also, I think you will be hard pressed to break a 5160 leaf spring at 44 HRC. Whether that is too stiff (or not stiff enough) for the application I couldn't say. All About 5160 Steel (Properties, Strength, and Uses)Dec 19, 2020 · 5160 steel is, as previously described, an ideal spring steel. Its hefty strength is often implemented in applications with smaller cross-sections under significant stress such as springs, fasteners, and leaf springs in automobile suspensions. Blacksmiths guide to using junk yard steels :Using Springs of all types are usualy medium to high carbon steel except for stainless (work hardened) and bronze springs. Automobile leaf and coil springs are both good for making tools and knives. Many manufacturers and spring shops use 5160 for springs but not all. 5160 was a favored steel in the 1980's and was used for many things.
Hardness values for some common metals and alloys are given in Chapter 22. 21.1.1 Brinell hardness. Relevant standards:ASTM E10-01, BS EN 10003-1:1996. An indenter comprising a hardened steel ball of diameter D mounted in a suitable holder is pushed into the material under test by a force F. The diameter of the indentation left in the surface China Hardness Spring Steel, China Hardness Spring Steel You can also choose from aisi, gb, and jis. As well as from stainless steel, steel, and alloy. And whether hardness spring steel is torsion, or compression. There are 19,803 hardness spring steel suppliers, mainly located in Asia. The top supplying country or region is China, which supply 100% of hardness spring steel respectively. Hardening/Tempering Leaf Springs - The Home Machinist!Nov 23, 2007 · Jack, I think the process you are describing is to add carbon to steel to make it hardenable. In my case, the steel (1095) already has enough carbon (.95%) but the trick is hardening it, then drawing the hardness down enough to avoid brittleness (tempering), without distorting the spring, oxidizing it, or burning out the carbon.
Normally, the steel could be used up to 25 mm thickness for flat products and 35 mm diameter for round products. Forging of the steel starts at 1050°C to, finish at 850°. Hot forming to require spring shape is done at 900-820°C, and then sub-critically annealed at 640 to 700°C to have a hardness of 225 BHN. Knife From a Car's Leaf Spring :13 Steps (with Pictures Most leaf springs, even the newer ones, tend to have a high carbon content. A food way to check is to run a spark test with a grinder on the metal. Steel has a distinct spark pattern and a higher carbon content steel will give off more sparks that tend to be brighter. Its the best way to tell if a steel is good for forging. Hope this helps. Material Hardness Properties of Springs - ACERecommended hardness scales for steels are presented in the table below. To obtain accurate readings, free from the effect of the anvil, it is important to limit the thickness of the spring wire material for each hardness scale as shown in Figure 1 for hard materials and Figure 2 for soft materials.
Meshing results on leaf springs for FEM analysis. 3. Results and Discussion . 3.1. Hardness of Failure Leaf Spring . The results of hardness test areshown in Fig. 7 horizontal axis from point A to B and vertical axis from C to D in the sum of 22 points. The distance between point approximately 2 to 5 mm (ref. to Figure 7.a). Re-Arching Leaf Springs a Lost Art Hagerty MediaJun 20, 2006 · For example:The grooved spring steel used on 1950s-1960s American cars is no longer available. Reproduction springs may be made of smooth steel. Rebuilding a leaf spring involves disassembling the leaves by removing the center bolt and clips that hold them together. There will be insulators between the leaves, plus bushings and other hardware. What Is the Hardness of Limestone? HunkerGerman mineralogist Frederich Mohs' 1812 Hardness Scale associated a hardness score with 10 common minerals, with diamonds scored as the hardest, at 10, and talc the least hard, at 1. Minerals with higher numbers can scratch any mineral with a lower number, and lower numbers can never scratch a higher numbered mineral.
The primary area where this is important is in the replacement of steel springs. With the modulus being about half that of steel, only half the number of coils are required. That in conjunction with the high strength and density being about 60% of that of steel could ideally result in a weight savings of about 70% of that of a steel spring. knives from leaf springs BladeForumsJul 01, 2013 · The flex on a sword or knife is related to the thickness of the blade, the length, and the geometry of the cross section. It isn't a factor of steel type or hardness. As mete said, "leaf spring" and 5160 are not synonymous. I would never forge a katana from a mystery steelit would just add a really bad ingredient to an already complex recipe. knives from leaf springs BladeForumsJul 01, 2013 · The flex on a sword or knife is related to the thickness of the blade, the length, and the geometry of the cross section. It isn't a factor of steel type or hardness. As mete said, "leaf spring" and 5160 are not synonymous. I would never forge a katana from a mystery steelit would just add a really bad ingredient to an already complex recipe.
A well structured Brinell hardness number reveals the test conditions, and looks like this, "75 HB 10/500/30" which means that a Brinell Hardness of 75 was obtained using a 10mm diameter hardened steel with a 500 kilogram load applied for a period of 30 seconds.