L&T HED Presentation on process control and effect

PROCESS

1. 1 Sour Application & Lab capabilities Visit on 30 th May, 2024

2. 2 Sour Applications- Orders Served Grade Customer Total(Mt) Thk band width band API 5L X-65 (Sour) AM/NS I LTD PIPE MILL DIV 341 8.74 to 19.1 <=3000mm ESSAR STEEL LIMITED – PIPE MILL DIV 39476 MAN INDUSTRIES (INDIA) LTD 1796 MARUBENI - ITOCHU STEEL PTE LTD. 78 RATNAMANI METALS AND TUBES LIMITED 467 API 5L X-65 (Sour) Total   42158     API_5L_X_60_MS_PSL_2 ESSAR STEEL LIMITED – PIPE MILL DIV 8446 12.7 to 25.4 mm <=3000mm API_5L_X_60_MS_PSL_2 Total   8446     API_5L_X_65MS_SOUR ESSAR STEEL LIMITED – PIPE MILL DIV 7510 16 to 19.05mm <=3000mm API_5L_X_65MS_SOUR Total   7510     API 5L X-60 (Sour) ESSAR STEEL LIMITED – PIPE MILL DIV 5410 9.53 to 31.95 mm <=3000mm   MAN INDUSTRIES (INDIA) LTD 291 <=40 T& <=18 M Length & >3000 mm width   RATNAMANI METALS & TUBES LTD 244   API 5L X-60 (Sour) Total   5946     API 5L Gr B MS ESSAR STEEL LIMITED – PIPE MILL DIV 52 9.53 to 20.62 mm Upto 4395mm in 14. 3 mm thk   MAN INDUSTRIES (INDIA) LTD 3757 API 5L Gr B MS Total   3808     APL -5LX-60 SOUR ESSAR STEEL LIMITED – PIPE MILL DIV 3213 12.7 to 37.95 mm <=3000mm         <=40 T& <=18 M Length & >3000 mm width APL -5LX-60 SOUR Total   3213     API_5L_X_52_MS_PSL2 ESSAR STEEL LIMITED – PIPE MILL DIV 1959 14.27 to 19.1 mm both < & > 3000 mm width   MAN INDUSTRIES (INDIA) LTD 1222 API_5L_X_52_MS_PSL2 Total   3181     API_5L_X_65MS_PSL2 _SOUR ESSAR STEEL LIMITED – PIPE MILL DIV 1084 25.4 & 26mm > 4000 mm width , provided <=40 T& <=18 M Length API_5L_X_65MS_PSL2 _SOUR Total   1084     Grand Total   75345    

3. 3 Properties band – YS

4. 4 Properties band – UTS

5. 5 Properties band – Elongation

6. 6 Properties band – Impact

7. 7 Properties band – DWTT

8. 1) Tensile Test machines : 1200KN Capacity and Walter+Bai Make(Swiss) 2000KN Capacity and Ziwick Roell Make(Germany) only one of its kind 2) V-notch impact testing machine: 450Joules Ziwck Roell Make(Germany) Impact Tester 3) Bend Test machine: Walter+Bai 1000KN Cold bending machine 4) DWTT machine: 2 drop weight tear testing machine, 80000 Joules, Pragya Tools , Indore MP 5) Hardness Testing Machine (Vickers & Brinell) 6) Spectrometer: 28 Channel Thermo Fisher make (Swiss) OES for accurate analysis of all elements in steel. Time taken for analysis of one sample is only 20 seconds. 7) Optical Microscope & Polishing and Mounting Machine 8 Testing Facilities Available:

9. Universal Testing machine This is used to check the Yield Strength; Tensile Strength; %Elongation of the Material. Facility : We have two Universal Testing Machine ( UTM) 1200KN Capacity and Walter+Bai Make and 2000KN Capacity and Ziwick Roell Make only one of its kind in India. Special Features: This has a Micro extensometer to calculate the exact Yield point and the 1200Kn machine is also equipped with a Hot tensile testing facility up to 1000°C 9

10. Impact Testing machine - 450Joules Ziwick Roell This is used to check the Toughness of material at various temperatures mainly at sub zero temperature. Toughness is the property which defines the capability of the material to sustain a sudden force in a very short time. Facility : We have 450Joules Ziwick Roell Make Impact Testing Machine which displays the data on the scale; on the display unit and on computer also. This machine has a covered cage which provides a full safe operation. 10

11. 11 Vickers & Rockwell Hardness Tester Used to check Hardness of Material. There are different scales to check hardness most used are Vickers and Rockwell. Facility : We have both Vickers ( FIE make)and Rockwell Hardness Tester (BIE Make) with computerized data analyzing system.

12. Bend testing machine: Walter+Bai 1000KN This check the ductility of the material. The sample is bend over a mandrill whose radius is calculated as 2T;3T or 4T where T is the thickness of the sample. The outer diameter of the bend sample is checked for crack formation after bend. Facility: We have a Walter+Bai 1000KN Cold bending machine with various diameter bend mandrel attachments. 12

13. Chemical analysis: 24 element Thermo Fisher make Spectro analyze This helps to analyze the percentage of various chemical elements in the material . Facility : We have a 24 element Thermo Fisher make Spectro analyzer which has argon gas as the medium and is also attached with argon gas purifier which helps to calculate the percentage of Nitrogen very accurately. The beauty of this machine is that this gives the result of one sample in 20seconds time. The main elements that are detected are C; Mn; S;P; Si;V;Nb;Ti;Cr;Mo;Ni etc. 13

14. Chemical Analysis: 24 element Thermo Fisher make Spectro analyzer This helps to analyze the percentage of various chemical elements in the material . Facility : We have a 24 element Thermo Fisher make Spectro analyzer which has argon gas as the medium and is also attached with argon gas purifier which helps to calculate the percentage of Nitrogen very accurately. The beauty of this machine is that this gives the result of one sample in 20seconds time. The main elements that are detected are C; Mn; S;P; Si;V;Nb;Ti;Cr;Mo;Ni etc. 14

15. Metallography This is used to check the Microstructure of the material at higher magnifications of 100X to 1000X. This also helps to calculate the grain size number; nodular ties; inclusion rating. Facilitates : Metallographic Microscope with magnification up to 1000X and Stereo microscope with magnification up to 75X. Also, various polishing and lapping machine to prepare micro samples 15

16. FAT Testing In house Set up for DMR 301K /301KM Defense Grade – approved by DMRL & in house FAT testing continuously going on. 100KJ DWTT New Machine, make Zwick Roell Germany erection & commissioning done at NP Bay. DWTT cover shed mechanical work also completed. Gas cutting area Shed is extended & also roof sheet is also replaced with new one. New AUTO UT Machine order finalization done with NDT Germany CY 23 CAPEX Approval of Auto UT Machine; Band Saw Machine and FAT Machine Completed and is Under Procurement. 16 Facilities & Developments – PMP Lab

17. 17 Online Ultrasonic Testing machine set up Plates getting scanned over the probes UST Controlling System Probes arranged in 2 carriages with  offset to cover 100% surface Probes of UST Machine

18. 18 Online UT Graphs Plate Thicknes s Method > 50 mm (up to 150 mm) Manual Ultrasonic Testing < 50 mm Online Ultrasonic Testing

19. API Surveillance Audit for API 2H,2W & 2Y was carried out successfully from 30th April to 12nd may 2024 for API 2H, 2W & 2Y Grade products. Bechtel Customer audit completed successfully against one of its project’s requirements to M/s Unger Steel in November. Vendor Evaluation Audit was carried out by TUV on 9th & 10th May’23 for Tatweer Petroleum – Bahrain for their various project in Oil & gas segment. Audit for plant renewable  NKK – Shipbuilding Certification for CSP, HSM and Plate Mill carried out successfully by NKK Class Surveyor certification received. Pre-Qualification /Vendor approval for KSB Limited for SA 516 Grade 70 supply for NPCIL Project successfully completed. 19 Audits  

20. Head CQAE(Naval Service) visited our Plant on 24th and 25th August and provided positive feedback, for excellent automation, quality control and women induction. Special VVIP Visit of senior members of ATVP for flag off ceremony of DMR301K/DMR301KM Plates. Appreciation from M/S SMS INDIA for the timely dispatches ref to ASTM A516Gr70, as it was for very important project and maintaining timelines was highest priority for them. Praj Industries express their heartfelt gratitude for the exceptional support and dedication during the plate manufacturing for their Urgent requirement for one of their Prestigious clients. Appreciation from Customer Champak Steel , for providing all MTCs & IBR Form in timely manner and solving all their past problems. Receiving appreciation from customer in letter which helped AMNS in indigenization of such critical plate for GCPL Marine Berth 2 Project, Dahej Gujarat – Specification - EN 10025-4 S420 M 20 Special Visits & Customer appreciation

21. 21 Accreditations & Approvals BIS    ISO 9001 : 2015 IBR API Gun Carriage Factory Vehicle Factory Jabalpur Well Known Steelmaker

22. Shipbuilding - DNV Approval for F36 Grade with impact guarantee at -60°C, Supply Condition- TMCP and Quenched & Tempered. (Thickness up to 100 mm) UKCA-CPR (UK conformity assessment -Construction Products Regulation) certificate received from TUV-Nord for HSM, CSP & PlateMill Plants. BIS proposed standard for abrasion resistant plate: Internal testing of Rockstar 400/450 is done as per BIS draft specification and further validation is also done. Approval Certification received of NKK - Shipbuilding certification by NKK Class Agency for two Rolling Mill (HSM & Platemill ) Products. IBR Well Know Certification Process 22 Product Approvals & Certifications  

23. “Customer service is not just believing you did your best, it is when customer says you did your best.” Thank you 23