GUIDELINES FOR WELDING - Bharat Heavy Electricals

1 GUIDELINES FOR WELDING , NDE AND HEAT TREATMENT THIS BOOKLET IS GIVEN AS A GENERAL GUIDELINE TO THE TENDERERS ABOUT WELDING , NDE & HT FOR THE PIPING SYSTEMS, HOWEVER INSTRUCTIONS GIVEN IN THE DRAWINGS & WELDING SCHEDULE ISSUED DURING EXECUTION OF THE WORK SHALL BE FINAL AND BINDING OF THE CONTRACTOR. BHEL PSSR SCT : BOOK NO : Bharat Heavy Electricals LIMITED (A Government of India Undertaking) Power Sector Southern Region 690, Anna Salai, Nandanam, Chennai 600 035. BASE MATERIALS Scope: This chapter contains tabulations of chemical compositions & mechanical properties of various materials generally used in BHEL sites. Contents: Table 1 - Pipes (ASME) Table 2 - Tubes (ASME) Table 3 - Forgings (ASME) Table 4 - Castings (ASME) Table 5 - Plates / Sheets (ASME) Table 6 - Pipes (Other specifications) Table 7 - Tubes (Other specifications) Table 8 - Forgings (Other specifications) Table 9 - Barstock The data are for general information purposes.

2 The corresponding P Numbers are also indicated. For materials not covered in this chapter, the supplier shall be contacted. CHEMICAL COMPOSITION AND MECHANICAL PROPERTIES Table - 1 Pipes Chemical Composition (%) Mech. Properties (Min.) Sl. No / Group No. Material Specification (ASME) C Mn P S Si Ni Cr Mo kg/mm2 kg/mm2 %E Min 1 P 1/1 SA 106 (Remarks: Carbon restricted to Max.) Max. Max. Max. Max - - - - 42 25 30 2 P 1/1 SA 672 , Max Max. Max. Max. Max. - - N Max. 25 3 P 1/ 2 SA 106 Max. Max. Max. Max - - - 49 28 30 4 P 4/1 SA 335 P 11 Max.

3 Max. Max. Max. - 42 21 30 5 P 4/1 SA 335 P 12 Max. Max. Max. Max. - - 42 21 30 6 P 5/1 SA 335 P 22 Max. Max. Max. Max. - 42 21 30 7 P 8/1 SA 376 TP 321H (Titanium Stabilised) Max Max. Max. Max. - 53 21 35 8 P 8/1 SA 376 TP 304H Max Max. Max. Max. - 53 21 35 9 P 8/1 SA 376 TP 316H Max Max. Max. Max. - 53 21 35 10 P 8/1 SA 376 TP 347H (Cb+Ta Stabilised) Max Max. Max. Max. - 53 21 35 CHEMICAL COMPOSITION AND MECHANICAL PROPERTIES Table 2 Tubes Chemical Composition (%) Mech.

4 Properties (Min.) Sl. No / Group No. Material Specification (ASME) C Mn P S Si Ni Cr Mo kg/mm2 kg/mm2 %E Min 1 P 1/1 SA 192 Max. Max. Max. - - - 33 18 35 2 P 1/1 SA 210 Gr A1 Max Max. Max. Max. - - - 42 26 30 3 P 1/1 SA 179 Max. Max. Max. - - - - - - - 4 P 1/ 2 SA 210 Gr. C Max. Max. Max. Max - - - 49 28 30 5 P 1/ 2 SA 556 Gr C2 Max.

5 Max. Max. Max. Max - - - 49 28 25 6 P 3/1 SA 209 T1 Max. Max. - - 39 21 30 7 P 3/1 SA 209 T1a Max. Max. - - 42 30 8 P 3/1 SA 209 T1b Max. Max. Max. - - 37 20 30 9 P 4/1 SA 213 T11 Max. Max. Max. - 42 21 30 10 P 4/1 SA 213 T12 Max. Max. Max. Max. - 42 21 30 CHEMICAL COMPOSITION AND MECHANICAL PROPERTIES Table 2 Tubes ( ) Chemical Composition (%) Mech.

6 Properties (Min.) Sl. No / Group No. Material Specification (ASME) C Mn P S Si Ni Cr Mo kg/mm2 kg/mm2 %E Min 11 P 5/1 SA 213 T22 Max. Max. Max. Max. - 42 21 30 12 P 5/1 SA 213 T5 Max. Max. Max. Max. - 42 21 30 13 P 5/2 SA 213 T9 Max. Max. Max. - 42 21 30 14 P 8/1 SA 213 TP 321H (Ti Stabilised) Max. Max. Max. Max. - 53 21 35 15 P 8/1 SA 213 TP 304 H Max. Max. Max. Max. - 53 21 35 16 P 8/1 SA 213 TP 304 Max.

7 Max. Max. Max. Max. - 53 21 35 17 P 8/1 SA 249 TP 304 Max. Max. Max. Max. Max. - 53 21 35 18 P 8/1 SA 688 TP 304 Max. Max. Max. Max. Max. - 53 21 35 19 P 8/1 SA 213 TP 316 H Max. Max. Max. Max. 53 21 35 20 P 8/1 SA 213 TP 347 H (Cb+Ta Stabilised) Max. Max. Max. Max. - 53 21 35 CHEMICAL COMPOSITION AND MECHANICAL PROPERTIES Table 3 Forgings Chemical Composition (%) Mech. Properties (Min.) Sl. No / Group No. Material Specification (ASME) C Mn P S Si Ni Cr Mo kg/mm2 kg/mm2 %E Min 1 P 1/ 2 SA 105 Max Max.

8 Max. Max. - - - 49 30 2 P 4/1 SA 182 F12 Max. Max. - 49 28 20 3 P 5/1 SA 182 F22 Max. Max. Max. Max. - 20 4 P 8/1 SA 182 F321 H (Ti Stabilised) Max. Max. Max. Max. Min - 21 30 5 P 8/1 SA 182 F304 H Max. Max. Max. Max - 21 30 6 P 8/1 SA 182 F316 H Max. Max. Max. Max 21 30 7 P 8/1 SA 182 F347 H (Cb+Ta Stabilised) Max. Max. Max. Max - 21 30 CHEMICAL COMPOSITION AND MECHANICAL PROPERTIES Table 4 Castings Chemical Composition (%) Mech.

9 Properties (Min.) Sl. No / Group No. Material Specification (ASME) C Mn P S Si Ni Cr Mo kg/mm2 kg/mm2 %E Min 1 P 1/2 SA 216 WCB Max. Max. Max. Max. Max. Max. Max. Max. 49 22 2 P 1/2 SA 216 WCC Max. Max. Max. Max. Max. Max. Max. Max. 49 28 22 3 P 3/1 SA 217 WC1 Max. Max. Max. Max. - - 24 4 P 4/1 SA 217 WC6 Max. Max. Max. Max. - 49 28 20 5 P 5/2 SA 217 C 5 Max. Max. Max. Max. - 63 42 18 6 P 5/1 SA 217 WC 9 Max.

10 Max. Max. Max. - 49 28 20 7 P 8/1 SA 351 CF 8 Max. Max. Max. Max. Max. Max. 49 21 35 8 P 8/1 SA 351 CF 8M Max. Max. Max. Max. Max. 49 21 30 9 P 8/1 SA 351 CF 8C Max. Max. Max. Max. Max. Max. 49 21 30 10 P 8/2 SA 351 CH 20 Max. Max. Max. Max. Max. Max. 49 21 30 CHEMICAL COMPOSITION AND MECHANICAL PROPERTIES Table 5 Plates / Sheets Chemical Composition (%) Mech. Properties (Min.) Sl. No / Group No. Material Specification (ASME) C Mn P S Si Ni Cr Mo kg/mm2 kg/mm2 %E Min 1 P 1/1 SA 516 Gr 60 Max.