ENQUIRY

BIGBOLT QT PLAN

QUALITY ASSURANCE & INSPECTION TEST PLAN

SR.NO STAGE CHARACTERISTICS TYPE/CHECK ACCEPTANCE NORMS RESPONSIBILITY REMARK
P W R
1 RAW METALS CHEMICAL COMPOSITION CHECK-1 PER HEAT PER SIZE (DIA) OR PER SIZE STANDARD OPERATING PROCEDURE 1 ………… 12  
SURFACE VISUAL ……………….. 1 ………… …………  
DIMENSION MEASUREMENT   1 ………… …………  
NON DESTRUCTIVE TEST SURFACE DEFECTS REQUIRED SPECIFICATION 1 ………… 2  
IDENTIFICATION COLOR CODING   1 ………… 12  
2 IN PROCESS INSPECTION CHECK DIMENSIONS OF THE PIECES SUBSEQUENTLY DURING THE PROCESS
[A] STUD/BOLTS
SR.NO STAGE CHARACTERISTICS TYPE/CHECK ACCEPTANCE NORMS RESPONSIBILITY REMARK
P W R
1) CUTTING & FORGING LENGTH & DIA DIMENSION MEASUREMENT MEASUREMENT REQUIRED SPECIFICATION 1 ………… …………  
2) MACHINING & CHAMFERING DIMENSIONS END FLATNESS MEASUREMENT VISUAL IS 1363 PT.1,2 OR IS 1364 PT.1,2 OR ANSI B 18.2.1 1 ………… …………  
3) CENTERLESS GRINDING DIAMETER MEASUREMENT VISIUAL IS 4218 PT. VI OR
ANSI B 1.1
1 ………… …………  
4) THREAD ROLLING DIMENSION CONFORMITY GAUGING REQUIRED SPECIFICATION 1 ………… …………  
5) HEAT TREATMENT HEAT TREATMENT CHART MEASUREMENT MECHANICAL REQUIRED SPECIFICATION 1 ………… 2  
6) INTERNAL MECHANICAL TESTING HARDNESS MEASUREMENT REQUIRED SPECIFICATION 1 ………… …………  
TENSILE MECHANICAL REQUIRED SPECIFICATION 1 ………… …………  
[B] NUTS (HEX SERIES & HOT FORGED)
SR.NO STAGE CHARACTERISTICS TYPE/CHECK ACCEPTANCE NORMS RESPONSIBILITY REMARK
P W R
1) CUTTING LENGTH & DIA MEASUREMENT REQUIRED SPECIFICATION 1 ………… …………  
2) FORGING DIMENSION MEASUREMENT REQUIRED SPECIFICATION 1 ………… …………  
3) MACHINING DIMENSION CONFORMITY MEASUREMENT IS 1364 PT.3,4 & 5 OR
ANSI-B 18.2.2
1 ………… …………  
4) THREADING DIMENSION CONFORMITY GAUGING IS 4218 PT. VI OR
ANSI B 1.1
1 ………… …………  
5) HEAT TREATMENT HEAT TREATMENT CHART TEST REQUIRED SPECIFICATION 1 ………… 2  
6) INTERNAL MECHANICAL TESTING HARDNESS MEASUREMENT REQUIRED SPECIFICATION 1 ………… …………  
TENSILE MECHANICAL REQUIRED SPECIFICATION 1 ………… …………  
[C] FINAL INSPECTION FOR EACH SIZE OF STUD/BOLT/NUT
SR.NO STAGE CHARACTERISTICS TYPE/CHECK ACCEPTANCE NORMS RESPONSIBILITY REMARK
P W R
1) STUD OR BOLTS DIMENSION MEASUREMENT & GAUGING REQUIRED SPECIFICATION 1 ………… …………  
2) NUTS DIMENSION MEASUREMENT & GAUGING REQUIRED SPECIFICATION 1 ………… …………  
3) L.P.E. IF REQUIRED SURFACE DEFECTS MECHANICAL P.O. SPECIFICATION 1 2 1  
[D] INSPECTION AGENCY
SR.NO STAGE CHARACTERISTICS TYPE/CHECK ACCEPTANCE NORMS RESPONSIBILITY REMARK
P W R
1) VISUAL VISIUAL/ DIMENSION STUD/BOLT/NUT MEASUREMENT P.O. SPECIFICATION 1 2 …………  
2) MECHANICAL TEST HARDNESS/ PHYSICAL STUD/BOLT/NUT PHYSICAL/ HARDNESS/ PROOF LOAD P.O. SPECIFICATION 1 ………… …………  
3) L.P.E. IF REQUIRED SURFACE DEFECTS MECHANICAL P.O. SPECIFICATION 1 2 2  
4) CHEMICAL ANALYSIS ANALYSIS STUD/BOLT/NUT CHEMICAL P.O. SPECIFICATION 1 ………… 2  
LEGEND : -                P- PERFORM               W- WITNESS              R- REVIEW               1 - FOR VENDOR              2 - INSPECTION AGENCY