What is the normal hardness of en8d material? If material is case hardened which scale is used, e.g.: en8, en8d, en19,en9, a)? If material is not hardened. Hardening EN parts. Q&A’s, Problems & Solutions Can I get hardness of hrc all over EN9 parts? 55C with no dimensional change?. EN8 is a very popular grade of unalloyed medium carbon steel, which is readily Hardness. Brinell. Chemical composition. Carbon. %.

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EN8 steel material is suitable for the all general engineering applications requiring a higher strength than mild steel such as:. Is there a way that you can study what has been said and try that approach?

Hardness of EN-8 grade material

We do hardening process with docking and cooling in salted water. The surface of the material is reaching HRC but at the core of the material is getting only.

We have taken C45 grade 4. November 29th, 0 Comments. Steel EN8 materials in its heat treated forms possesses good homogenous metallurgical structures, giving consistent machining properties. Steel Grade required EN8 M Required case depth is 0.

An EN8 material Sq.

January 3rd, 0 Comments. You need to case harden C45 up to HRC, I should say you can achieve that hardness without difficulties. And surface treatment is hard chrome plating. What is the normal hardness of en8d material? Hello there, we make pins from 3 mm to 16 mm dia.

Chemical composition are C – 0. 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.


The main advantage of cold drawn Steel is that Steel can be brought closer to the finished machine size, reducing machining costs. But EN8 steels can be further surface-hardened by induction processes, producing components with enhanced wear resistance. We posted your question and we hope you will receive an answer! EN8 steel is usually supplied untreated but also be able to be supplied to order in the normalized or finally heat treated, which is adequate for a wide range of applications.

March 9, A. It’s not possible to diagnose a finishing problem or the hazards of an operation via these pages. Is there any process or suggestion to remove this bend while preventing from any crack? We posted your inquiries, gentlemen, but as you see no reader has taken the time to address them, despite thousands of people viewing them.

Good heat treatment results on sections larger than 65mm may still be achievable, but it should be noted that a fall-off in mechanical properties would be apparent approaching the centre of the bar. All I can do is coach you on what I’ve learned from 20 years of running this forum: If you buy steel with a guaranteed hardenability band, you could better predict the heat treat response. If anyone knows, kindly help. If material is not hardened, e. Mild Steel is used in mechanical engineering applications for parts that will not be subject to high stress.

But very few times do we achieve the target. 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.


Hi sir, We are facing same problem re. Modern EN8 bright Mild Steel contains a lot less carbon then it use to, this mean that it is possible to weld pieces up to 18mm thick without preheating using MIG wire SG2 or a electrode.

This might explain the variation in the broach dimension. We are doing similar components; also specify whether hardneess. The forged shaft diameter is 45 mm and length is mm with one end disc e8 of mm and length 30 mm. X mm What maximum hardness can I get by Oil Quenching? Sorry, I have no knowledge of heat treatment.

It is therefore recommended that larger sizes of EN8 steel materials are supplied in the untreated condition, and that any heat treatment is carried hardnesd after initial stock removal.

Regards, Ted Mooney, P. All information presented is for general reference and does not represent a professional opinion nor the policy of an author’s employer.

And since this is a 0. Is it in c scale or b scale? Our hardening company person promises to harden it at 55C, but there is too much variation in the diameter after hardening.

Hello, I would like to know about the volume hardening of En9 to achieve hardnezs core hardness of BHN. If it is the case hardness, is there any specification for core hardness? hardneds

EN8 Carbon Steel, M40 BS Specification – Otai Special Steel

May Hi Rajkumar. What are the probable reasons for non achievement of hardness?

EN8, in my experience, is not a good material for hardening.