KS WELDING PROCEDURE SPECIFICATION SHEET NO. 1 OF 3
NAME OF DRAWING : COMBINED WELDING (FCAW + SAW)
APPROVED	S. M CHO	WPS NO. : FC. SA-001
	CHOSANGMYUNG4.22	TEL. NO.	051) 620-1660
CHECKED	S. H. KIM	PUKYONG WELDING Eng. CO., LTD. #100. YONGDANG-DONG, NAM-GU, PUSAN, KOREA.
	KIMSUNHEE4.22
DRAWN	W. S. JOO
	JOOWESANG
DATE : APR. 22. 1997

WELDING PROCEDURE SPECIFICATION (WPS) PUKYONG WELDING Eng. CO., LTD. 2 OF 3
WPS No. FC. SA-001 Date APR. 22. 1997 Supporing PQR No. QFC. SA-001-1F. 2F Revision No. - Date - Welding process(es) FCAW + SAW Type SEMI-AUTOMATIC + Automatic
JOINT DESIGN Type of joint SEE JOINT DETAIL Backing (YES) O (NO) Backing Mat'l CERAMIC BACKING MAT'L Other BRAND : CBM-8061	JOINT DETAIL Groove angle (D) : 30∼40¸ Root face (F) : 0∼2mm Root gap (G) : 3∼8mm Misalignment (M) : 0∼2mm
BASE METALS Mat'l Spec. ORDINARY STRENGTH STEEL Type and Grade NVA, NVA32 Thickness Range 10 ≤ t ≤ 80 mm Pipe Dia. Range N/A Other N/A
FILLER METALS Filler Metal Spec. AWS FCAW : A5.20 E71T-1 SAW : F7A2/EH-14 Filler Metal Class FCAW : DNV ⅡYMS SAW : DNV ⅢYTM Size of Filler Metals FCAW : 1.4□mm MAX SAW : 4.8□mm MAX Electrode-Flux (Class) N/A Flux Trade Name S-777MX Consumable Insert N/A Brand Name SF-71:H-14/ S-777MX (PUKYONG WELDING & METAL CO., LTD)	POSITION Position of Groove FLAT Welding Progression N/A
	HEAT TREATMENT Preheat Temp. 38<t : 66℃ MIN. Inter pass Temp. 260℃ MAX. Post weld Heat Treatment Temp. N/A Time. N/A
GAS Type of Gas CO2 GAS(FCAW ONLY) Composition of gas Mixture 99.5% Flow Rate 20∼25 □/min.	WELDING TECHIQUE Methode of Back gouging *6 Single or Multi Pass MULT-PASS Single or Multi Electrode SINGLE

WPS NO. : FC. SA-001 3 OF 3
TYPICAL WELDING CONDITION Welding Position : FLAT
Plate Thick. (mm)	Groove Design & Welding Sequence	Run	Elect. Dia. □ (mm)		Current		Voltage (V)	Speed (cm/min)	Remark
					AC, DC	Ampere(A)
10≤ t≤80		1	1.2 1.4		DCRP	180-240 220-250	23-31 27-38	6-12 12-20	FCAW
		2	1.2 1.4		DCRP	240-280 280-300	26-36 30-34	25-45 16-20
		3	4.0		AC	450-550	30-40	35-45	SAW
			4.8			500-600	30-40	40-50
		REST	4.0			550-750	30-40	35-50
			4.8			600-800	30-40	40-50
SPECIAL INSTRUCTIONS 1. This procedure is a kind of combined welding of FCAW and SAW. 2. Ceramic backing meterial is to be attached at the reverse side of the groove to form a reverse side bead. 3. After root run welding is done, backing Material can be removed. 4. This root side shell be welded by FCAW with ceramic backing to prevent burn through during SAW. 5. Other welding material(s) approved by DNV as the same grade may be used. 6. Back side gouging and welding may be applied if back bead appearance is not acceptable.
Approved by S. M. CHO Checked by S. H. KIM Prepared by W. S. JOO				Authorized by Authority