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PA-8016-B1

AWS Specification: AWS A5.5 E8016-B1

JIS Specification: NONE

Other Specification: NONE

 

I. APPLICATIONS:

Welding of 0.5% Cr-0.5% Mo steel used for high temperature and high pressure boilers, chemical and oil refining industries.

II. DESCRIPTIONS:

PA-8016-B1 is a low hydrogen type electrode for all-position welding, which provides the weld metal 0.5% Cr-0.5% Mo. The crack is resistibility of the weld metal is excellent.

III. NOTES ON USAGE:

• Dry the electrodes at 325-375ºC for about one hour before use.

• Preheat at 125-250ºC and postheat at 620-680ºC.

• Adopt back step method or strike the arc on a small steel plate prepared for this particular purpose to prevent blowholes at the arc starting.

• Keep the arc as short as possible.

IV. TYPICAL CHEMICAL COMPOSITION OF DEPOSITED METAL (%):

C	Si	Mn	Cr	Mo
0.07	0.51	0.81	0.51	0.49

V. TYPICAL MECHANICAL PROPERTIES OF DEPOSITED METAL:

Tensile Strength N/mm2 (Ksi)	Yield Point N/mm2 (Ksi)	Elongation %	PWHT
670 (97)	590 (86)	26	690°C x 1hr.

VI. WELDING POSITIONS: ALL POSITION-EXCEPT VERTICAL DOWN

VII. SIZES & RECOMMENDED CURRENT RANGE: AC or DC (+)

Diameter (mm)		2.5	3.2	4.0	5.0
Length (mm)		350	350	400	400
Ampere	Flat	50 - 75	70 - 110	110 - 155	155 - 200
	V & OH	30 - 70	55 - 105	90 - 140

 

 

 

 

•  philarc-pa-8016-b1.pdf