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Indian Standard · ISI Mark

IS 3930 BIS Certification for Flame and Induction Hardening Steels

Flame and Induction Hardening Steels made, imported or sold in India must be certified against IS 3930 under an ISI mark licence (Scheme-I). What the standard covers, how testing works and how to get the licence.

About IS 3930

StandardIS 3930: 1994
TitleFlame And Induction Hardening Steels
Product coveredFlame and Induction Hardening Steels
CategorySteel and Iron Products
SchemeISI mark licence (Scheme-I)
Notified underSteel and Steel Products (Quality Control) Order, 2020, S.O. 756(E), dated 14-02-2020 · Order PDF

Editions and amendments of IS 3930

EditionPublishedStatus
IS 3930:1994
Flame and induction hardening steels - Specification (Second Revision)
31 May 1994Current, next review 30 Apr 2029

No amendments to the current edition are listed by BIS.

Marking fee for IS 3930

BIS charges an annual minimum marking fee for the ISI mark under IS 3930, set by unit size, plus a per-unit rate once production passes the minimum:

Unit sizeMinimum marking fee (per year)
Large₹1,53,000
Medium₹1,23,000
Small₹76,500
Micro₹30,600

Unit rate: ₹5.7 per mt. Source: BIS marking fee schedule for Scheme-I products, September 2026.

Sampling and key tests for IS 3930

From the BIS product manual for IS 3930, which BIS officers and applicants follow for certification:

Sample quantity:2

ISI licences under IS 3930

BIS records 1 operative licences (1 including deferred, cancelled or under stop marking). Most licensed factories are in Tamil Nadu (1).

Testing against IS 3930

BIS inspects the factory and has samples tested to the full Indian Standard at a BIS or BIS-recognised laboratory. After grant, the factory keeps testing production under the Scheme of Inspection and Testing, and BIS draws factory and market samples.

The test report has to cover every clause of IS 3930 that applies to the product, in the edition current on the date of testing. When BIS revises IS 3930 or replaces it with a new edition, existing licence holders move to the new edition by the date BIS sets in its notification.

How to get an ISI mark licence under IS 3930

The licence is granted to the manufacturer for a specific factory and product. Indian factories apply under Scheme-I; overseas factories apply under the Foreign Manufacturers Certification Scheme (FMCS) and must nominate an Authorised Indian Representative.

  1. Confirm the exact Indian Standard and the varieties to cover
  2. Get the product tested at a BIS-recognised lab (simplified procedure) or arrange BIS sampling
  3. Apply on Manak Online with factory, quality-control and test documents
  4. BIS factory inspection and sample verification
  5. Grant of licence, then marking with the ISI mark and CM/L number

Timeline. BIS targets 30 days under the simplified procedure (applying with a recent lab test report) and 90 days under the normal procedure. Overseas factories under FMCS typically take around 6 months.

Fees. Application fee ₹1,000 and annual licence fee ₹1,000, inspection charges of ₹7,000 per man-day, testing charges, and an annual minimum marking fee set for each Indian Standard (with concessions for micro and small units).

Mark. Certified products carry the ISI Standard Mark with the IS number and the CM/L-XXXXXXXXXX licence number.

Frequently asked questions

What does IS 3930 cover?

IS 3930: 1994: Flame And Induction Hardening Steels. BIS has made certification against it compulsory for flame and induction hardening steels.

Is BIS certification under IS 3930 mandatory?

Yes, for flame and induction hardening steels, under the Steel and Steel Products (Quality Control) Order, 2020, S.O. 756(E). The product needs a valid BIS licence (ISI mark) and must carry the ISI Standard Mark with the IS number and the CM/L-XXXXXXXXXX licence number.

Where is a product tested for IS 3930?

BIS inspects the factory and has samples tested to the full Indian Standard at a BIS or BIS-recognised laboratory. After grant, the factory keeps testing production under the Scheme of Inspection and Testing, and BIS draws factory and market samples.

How long does IS 3930 BIS certification take?

BIS targets 30 days under the simplified procedure (applying with a recent lab test report) and 90 days under the normal procedure. Overseas factories under FMCS typically take around 6 months.

Other standards in Steel and Iron Products

  • IS 277 Galvanized Steel Sheets ( Plain and Corrugated)
  • IS 280 Mild Steel Wire for General Engineering Purposes
  • IS 412 Expanded Metal Steel Sheets for General Purposes
  • IS 432 2 products
  • IS 513 2 products
  • IS 648 Cold Rolled Non-oriented Electrical Steel Sheets and Strip-fully Processed Type (CRNO)
  • IS 963 Chrome Molybdenum Steel Bars and Rods for Aircraft Purposes
  • IS 1029 Hot Rolled Steel Strip (bailing)
  • IS 1079 Hot Rolled Carbon Steel Sheet, Plate and Strip —
  • IS 1110 Ferrosilicon

Source: BIS lists of products under compulsory certification (Scheme-I, Scheme-II), checked October 2026. See the full BIS product list or all Indian Standards.

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