EN9 STEEL PROPERTIES PDF

With en9 material can I get hardness of hrc on all over the part. So can you help for getting hardness hrc? En9 is a plain unalloyed medium-carbon steel. It therefore requires very severe cooling in the heat treatment cycle in order to get the sort of hardness that you want, and the thickness of the section in turn greatly affects the cooling rate that can be achieved.

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With en9 material can I get hardness of hrc on all over the part. So can you help for getting hardness hrc? En9 is a plain unalloyed medium-carbon steel. It therefore requires very severe cooling in the heat treatment cycle in order to get the sort of hardness that you want, and the thickness of the section in turn greatly affects the cooling rate that can be achieved.

Information that you must supply to get further with your query: 1. What section thickness is your component? To what depth below the surface do you want HRc? Related to Q2, do you want through-hardening? Do you have a soak-and-water-quench facility? Do you have a flame-hardening facility? Depending on answers to the above, there might be a heat treatment cycle that will give you what you want on En9, or it might be that you will need to change grade to one that has appropriate alloy content to allow hardening by less severe quenching.

March 9, A. Part dimensions, thickness, quenchant, quench agitation, variation of chemistry from heat to heat And since this is a 0. This might explain the variation in the broach dimension.

If these are thin parts, you might be able to austemper or marquench them to reduce warpage. If you buy steel with a guaranteed hardenability band, you could better predict the heat treat response. If the part is too thick to achieve adequate as quenched hardness, a change in material may be needed.

Good luck. Obviously it is possible to get hardness hrc in en 9, but please specify section thickness? Please specify whether dwg. We are doing similar components; also specify whether dwg. I would advise more quenching to avoid problem of distortion Just for sharing, had manufactured EN king pins which were toughened to 25 Rc at core then surface was induction hardened in polymer quenching to give 55 hrc hardness at surface to depth of.

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EN8 Mild Steel

There are four main families, which are primarily classified by their crystalline structure : austenitic, ferritic, martensitic and duplex. Austenitic stainless steel[ edit ] Main article: Austenitic stainless steel Austenitic stainless steel [24] [25] is the largest family of stainless steels, making up about two-thirds of all stainless steel production see production figures below. Duplex stainless steels tend to be preferred in such situations because of their high strength and corrosion resistance. The most frequently used is electric arc welding see welding section below. Type is hardenable through cold working, Type is a general purpose stainless steel.

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SteelConstruction.info

This process refines the grain size and improves the mechanical properties, specifically toughness. This has a similar effect on the properties as normalizing, but it eliminates the extra process of reheating the material. The use of high tensile steel can reduce the volume of steel needed but the steel needs to be tough at operating temperatures, and it should also exhibit sufficient ductility to withstand any ductile crack propagation. Therefore, higher strength steels require improved toughness and ductility, which can be achieved only with low carbon clean steels and by maximizing grain refinement.

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Stainless steel

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