Document Details |
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| Name of Department/Committee : | MTD 16 | ||||||||
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| Document Number : | MTD 16 ( 25873) | ||||||||
| Document Title [English] : | Heat - Treated steels alloy steels and free - Cutting steels - Ball and roller bearing steels | ||||||||
| Document Title [Hindi] : | उष्मा-उपचारित इस्पात, मिश्रधातु एवं सकटय इस्पात — बॉल एवं रोलर बेयरिंग इस्पात | ||||||||
| Document Type : | Revision | ||||||||
| Language : | English | ||||||||
| Priority : | 3 | ||||||||
| ICS Code : | 21.100.20 77.140.10 | ||||||||
| Date of Project Approval : | 14-05-2024 | ||||||||
| Standards to be Revised : |
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| Standards to be Superseded : |
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Classification Details |
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| Group : | Metals, Alloys and Metal Products (including Steel Products) |
| Sub Group : | Alloy steels and forgings |
| Sub Sub Group : | Alloy steel |
| Aspects : | Product Specification |
| Risk : | None |
| Certification : | Mandatory Certification |
| Short Commom Man's Title : | |
| ITCHS Code : | |
| Ministry : |
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| Sustainable development Goals : | |
| Degree of Equivalence : | Identical under dual numbering |
| Identical/Equivalent Standards : | ISO 683-17:2023 |
| Organization Type: | ISO |
| Sl.No. | Synosis Points | |
| 1 | induction hardening steel 50CrMo4 and stainless steel X30CrMoN15-1 were added; | |
| 2 | requirements for Ca and Ti content have been added for through-hardening bearing steels; | |
| 3 | requirements for O content have been further restricted for through-hardening and induction hardening bearing steels; | |
| 4 | option for H content for premium bearing steels has been added for through-hardening, case hardening and induction-hardening bearing steels; | |
| 5 | option for verification of microscopic inclusions in Table A.1 for through-hardening bearing steels has been revised. | |
Timeline Details |
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Stages |
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| Sl. No. |
Stage | Date of Occurence | Remarks | Circulated to | Files |
| 1 | Generation of Document Number | 14-05-2024 | ------- | ||
| 2 | P-Draft Waived | 19-06-2024 | Committee in its 27th TC meeting decided to circulate the document as Wide circulation for 30 days | ------- | |
| 3 | WC Draft | 19-06-2024 | Duration : 30 Days Submitted for HOD approval |
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| 4 | WC Draft | 19-06-2024 | WC approved by HOD |
MTDC MTD 16, | ------- |