Lincoln Electric NR-233 appendix Mechanical Properties As required per AWS A5.20-95

MECHANICAL PROPERTIES – As required per AWS A5.20-95

						Charpy V-Notch
	Yield Strength	Tensile Strength			Elongation	ft•lbf (Joules)
	psi (MPa)	psi (MPa)			(%)	@ -20°F (-29°C)
Requirements	58,000 (400)	70,000		(480)	22	20 (27)
AWS E71T- 8	min.	min.			min.	min.
Typical	62,000- 71,000	73,000	-	92,000	22 - 32	23	- 48
Test Results	(430 - 490)	(505	-	635)		(31	- 65)

Note: The strength and elongation properties reported were obtained from a .505” tensile specimen artificially aged at 220º F (104º C) for 48 hours, as permitted by AWS A5.20-95. A naturally aged tensile specimen may take months to achieve the specified properties. See AWS A5.20-95, paragraph A8.3. The time required for the natural aging of weld deposits is dependent upon ambient conditions, weldment geometry, the metallurgical structure of the weld deposit and other factors.

TYPICAL OPERATING PROCEDURES

Diameter
Polarity	Wire Feed		Approx.	Melt-Off	Deposition
CTWD(1)	Speed	Voltage	Current	Rate	Rate	Efficiency
Wire Weight	in./min (m/min)	(volts)	(amps)	lbs/hr (kg/hr)	lbs/hr (kg/hr)	(%)
1/16”	150 (3.8)	17-19	220	5.3 (2.4)	4.2 (1.9)	80
DC-	200 (5.1)	19-21	245	7.1 (3.2)	5.4 (2.5)	76
1/2-1-1/4”(13-32mm)	250 (6.4)	21-23	270	8.9 (4.0)	6.6 (3.0)	74
0.582 lbs./1000”	300 (7.6)	23-25	295	10.4 (4.7)	7.7 (3.5)	75
	350 (8.9)	25-27	315	12.3 (5.6)	9.4 (4.3)	77
.072	100 (2.5)	17-18	185	4.5 (2.0)	3.6 (1.6)	80
DC-	150 (3.8)	18-19	250	6.7( 3.1)	5.4 (2.5)	80
3/4-1”(19-25mm)	200 (5.1)	20-21	295	8.9 (4.0)	7.1 (3.2)	81
0.746 lbs./1000”	250 (6.4)	22-23	330	11.2 (5.1)	8.9 (4.0)	79
	300 (7.6)	23-24	355	13.4 (6.1)	10.6 (4.8)	79

(1)To estimate ESO, subtract 1/4” (6.4mm) from CTWD. Note: For horizontal welding, subtract 1 volt.

DEPOSIT COMPOSITION - As required per AWS A5.20-95

	%C	%Mn	%P	%S	%Si	%Al
Requirements	Report	1.75	0.03	0.03	0.60	1.8
AWS E71T-8	Only	max.	max.	max.	max.	max.
Typical Test Results	0.17-0.23	0.45-0.66	0.006-0.009	0.003	0.14-0.25	0.47-0.71
				F E M A	3 5 3

This electrode has been tested in accordance with FEMA 353 - Recommended Specifications and Quality Assurance Guidelines for Steel Moment-Frame Construction for Seismic Applications and is capable of depositing weld metal that delivers minimum CVN properties of 40 ft.lbf at 70˚ F (54 Joules at 21˚ C) at low and high heat input levels. As required by the AWS classification, it meets a minimum CVN of 20 ft.lbf at -20˚ F (27 Joules at -29˚ C), when tested in accordance with AWS A5.20. This electrode will also deposit metal that will meet the requirements for H16 as tested according to AWS A4.3. FEMA certificates are available upon request.

T E S T R E S U L T S

Test results for mechanical properties, deposit or electrode composition and diffusible hydrogen levels were obtained from a weld produced and tested according to prescribed standards, and should not be assumed to be the expected results in a particular application or weldment. Actual results will vary depending on many factors, including, but not limited to, weld procedure, plate chemistry and temperature, weldment design and fabrication methods. Users are cautioned to confirm by qualification testing, or other appropriate means, the suitability of any welding consumable and procedure before use in the intended application.

C U S T O M E R A S S I S T A N C E P O L I C Y

The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equipment. Our challenge is to meet the needs of our customers and to exceed their expectations. On occasion, purchasers may ask Lincoln Electric for advice or information about their use of our products. We respond to our customers based on the best information in our possession at that time. Lincoln Electric is not in a position to warrant or guarantee such advice, and assumes no liability, with respect to such information or advice. We expressly disclaim any warranty of any kind, including any warranty of fitness for any customer’s particular purpose, with respect to such information or advice. As a matter of practical consideration, we also cannot assume any responsibility for updating or correcting any such information or advice once it has been given, nor does the provision of information or advice create, expand or alter any warranty with respect to the sale of our products.

Lincoln Electric is a responsive manufacturer, but the selection and use of specific products sold by Lincoln Electric is solely within the control of, and remains the sole responsibility of the customer. Many variables beyond the control of Lincoln Electric affect the results obtained in applying these types of fabrication methods and service requirements.

Subject to Change – This information is accurate to the best of our knowledge at the time of printing. Please refer to www.lincolnelectric.com for any updated information.

THE LINCOLN ELECTRIC COMPANY

22801 St. Clair Ave., Cleveland, OH 44117-1199 • 216.481.8100 • www.lincolnelectric.com