Furnace Number
Item
Required Hardness
LAXMI UDYOG OIL FIELD EQUIPMENTS PVT LTD, JODHPUR
F-P-16-03 (HEAT TREATMENT LOG BOOK SHEET)
10
Date
03.08.21
Coupling 7/8"
Material Grade
AISI 4140
16-23 HRC
Furnace On Time
10:00 AM
Hardening
Temperature Required
Time of Temperature Attained
Soaking Period
Quenching Temperature
Quenching Time
Tempering
Time
13:00
14:00
15:00
16:00
17:00
18:00
Tempering
Furnace No.
Temperature
Time
Temperature
TC 1
259
369
470
654
657
660
TC 2
286
387
494
663
675
677
10
650 Deg C
2 Hrs
Tempering
800
700
600
500
400
300
200
100
0
13:00
14:00
15:00
16:00
TC 1
TC 2
17:00
18:00
Authorised Signature