electrical grade aluminum bus bar

Electrical grade aluminum bus bar is also called ec grade aluminium busbar, normally have two types, one is pure aluminum, such as 1350, 1050, 1060 and 1070 alloy, pure aluminium has a conductivity of about 65% IACS. The other one is 6*** alloy, such as alloy 6061 and 6101, the alloy 6101 is quite common for busbar usage.

Electrical grade aluminum bus (pure aluminum)

Application of alloy 6101 in bus bar

Aluminum is subjected to oxidisation when exposed to the atmosphere. The coating of aluminum by different metals is one of the most comon commercial practices used to improve the stablity and to suppress the galvanic corrosion of aluminum-to -copper connection. The most widely used coating materials are tin, silver, copper, cadmium and nickel.

Alloy: 1050, 1350, 1060, 1070, 6101, 6063

Temper: H12, H112, T6, T65, T7, O

Thickness: 2-20mm

Width: Less than 300mm

Length: 3000mm--6000mm, or as per request.

Surface treatment: tin plating, silver plating, nickel plating, copper plating.

Insulated: with PVC tube or Dipping with the PVC material.

Further fabrication: Punched aluminum flat bar, perforated aluminum flat bar, aluminum flat bar with holes, black anodized aluminum flat bar.

Rectangular angle of electrical grade aluminum bus bar
3mm (thickness)	3*15	3*20	3*25	3*30	3*40	3*50
4mm (thickness)	4*10	4*20	4*25	4*30	4*40	4*45	4*50
5mm (thickness)	5*20	5*25	5*30	5*35	5*40	5*50	5*60	5*80
6mm (thickness)	6*20	6*30	6*40	6*50	6*60	6*80	6*100	6.3*50	6.3*80	★6.3*100
7mm (thickness)	7.6*80								6.3*76	★6.3*63
8mm (thickness)	8*11	8*30	8*40	8*50	8*60	★ 8*63	8*80	8*100	8*120	8.1*74
10mm (thickness)	10*30	10*40	10*50	10*60	★10*63	10*80	10*100	10*120	10*125	10*140
10mm (thickness)	10*150	10*160
12mm (thickness)	★12*60	★12*80	★12*100	12*120	★ 12*125	12*150	★ 12.5*125
14mm (thickness)	★14*80	★14*100		Square rod	★ 50*50	★ 35*55	19*19	Six angle rod	★30	★40
15mm (thickness)	15*100	15*120		Round rod	★￠10	★￠12	￠16	★￠28	★￠32	★￠40
16mm (thickness)	★16*100	★16*125		Round rod	★￠45	★￠46	★￠50	★￠55	★￠60	★￠65
20mm (thickness)	★20*80	★20*100			★￠70	★￠75	★￠80

Round angle of electrical grade aluminum bus bar
2mm (thickness)	R2*20
3mm (thickness)	R3*30	R3*40	R3*50	R3*60	R3*80	R3*100	R3*120	R3*160
4mm (thickness)	R4*25	R4*30	R4*40	R4*50	R4.7*151
5mm (thickness)	R5*30	R5*35	R5*40	R5*50	R5*60	R5*120
6mm (thickness)	R6*50	R6*60	R6*80	★R6.3*63	R6*100	R6*120	R6*140	R6*160
8mm (thickness)	R8*40	R8*50	R8*60	★R8*63	R8*80	R8*100
10mm (thickness)	R10*50	R10*60	R10*80	R10*100	★R10*120	R10*125	R10*170	R10.4*25
12.5mm (thickness)	★R12.5*80	★R12.5*125		★R16*120

Physical and Electrical Properties of Aluminum Wrought Bus Conductor Alloys
(ASTM B 236,B 317,and The Aluminum Association)

Applying to all alloys and tempers of wrought alloys, typical values. Weight, lb/cu in. (rounded) 0.098 Specific heat, cal/gm/℃ or BTU/LB/F 0.214 at 70℃ for 1350 and 0.220 for 6101(e). Coefficient of thermat expansion (linear)/℃ 0.000023. Specific gravity - 2.70.				Modulus of Elasticity, Typical, psi 10 * 106, up to 2% higher in compression. Note : if two values are shown, the more favorable is “typical”; the less favorable is designated “minimum” provided a higher value is favorable. Otherwise the term “guaranteed” is sometimes used.
Properties	Alloy and Temper
	1350 Any Temper	6101 -T6	6101 -T61		6101 -T63	6101 -T64	6101 -T65	6101-T6 Typical	6063 -T6 typical
Thermal conductivity at 20℃,watts/sq. In /in /℃	5.9-6.0	5.3-5.4	5.5-5.6		5.4-5.5	5.7-5.8	5.7-5.8	3.9	5.1
Volume electrical conductivity at 20℃ percent IACS(a).	61-62	55-56	57-58		56-57	59.5-60.5	56.5-57.5	42.43	63(a)
Electrical resistivity (de) at 20℃ (68F) microhms/sq.in./ft(c).	13.35- 13.14	14.81- 14.55	14.29- 14.04		14.55- 14.29	13.69- 13.46	14.42- 14.17	19.39- 18.94	15.37
Temperature coefficient of electrical resistance at 20℃ /℃(d).	0.00403- 0.00410	0.00363- 0.00370	0.00377- 0.00383		0.00370- 0.00377	0.00393- 0.00400	0.00373- 0.00380	0.00284- 0.00277	0.003

Temperature Coefficients of Resistance (dc) for Bus-conductor Aluminum Alloys
And Representative Value for Commercial Copper Bus Bar
Aluminum Alloys and Tempers, And Conductivity % (IACS) (a)

	6061- T6 Typical	6063-T6 Typical	6101-T6 Minimum	6101-T63 Minimum	6101-T6 Minimum	6101-T61 Typical		6101-T64 Minimum		1350 Minimum	1350 Typical	Representative Value Commercial Copper Busbar
% IACS Temp. C.	40%	53% (b)	55%	56%	57%	58%	59%	59.5%	60%	61%	62%	98%
0 10 20 25	.00279 .00271 .00264 .00261	.00377 .00363 .00350 .00344	.00392 .00377 .00363 .00357	.00400 .00384 .00370 .00363	.00407 .00391 .00377 .00370	.00415 .00398 .00383 .00376	.00423 .00406 .00390 .00382	.00427 .00409 .00393 .00386	.00431 .00413 .00396 .00388	.00438 .00420 .00403 .00395	.00446 .00427 .00410 .00401	.00417 .00401 .00385 .00378
30 40 50 60	.00257 .00251 .00245 .00239	.00338 .00327 .00317 .00307	.00351 .00339 .00328 .00317	.00357 .00344 .00333 .00322	.00363 .00350 .00338 .00327	.00369 .00356 .00344 .00332	.00375 .00362 .00349 .00337	.00378 .00364 .00352 .00340	.00381 .00367 .00354 .00342	.00387 .00373 .00360 .00347	.00393 .00379 .00365 .00352	.00371 .00358 .00345 .00334
70 80 90 100	.00233 .00228 .00223 .00218	.00298 .00289 .00281 .00274	.00307 .00298 .00290 .00282	.00312 .00303 .00294 .00285	.00316 .00307 .00298 .00289	.00322 .00312 .00302 .00293	.00326 .00316 .00306 .00297	.00329 .00318 .00308 .00299	.00331 .00320 .00310 .00301	.00335 .00325 .00314 .00305	.00340 .00329 .00318 .00309	.00323 .00313 .00303 .00294

(a) For alloys not shown. obtain conductivities from Table 13·2, and interpolate from the listed values.
(b) Per note on Table 1;3.2, 55% conductivity is much used as design basis for 6063·T6 alloys for tubes, hence coefficients should be taken from the column, headed 55%.
Mechanical Properties of Aluminum Bus Conductor and Related Alloys
(The Aluminum Association ; ASTM B 236, B 241, and B 429; and Manufacturer’s Listings)

Product	Alloy and Temper	Thickness in Ultimates	Tensile Strength (ksi) At 20 (68。F)		Typical Ultimate	Typical Yield	Typical(a) Elongation (Percent - in 2 in. Or 4 Dia)
Product	Alloy and Temper	Thickness in Ultimates	Minimum Ultimate	Minimum Yield	Typical Ultimate	Typical Yield	Typical(a) Elongation (Percent - in 2 in. Or 4 Dia)
Extruded rod, bar tube, pipe and shapes	1350-H111	All	8.5	3.5			35.0
	6101-T6	0.125-0.500	29.0	25.0	32.0	28.0	15.0
	6101-T61	0.125-0.749 0.750-1.499 1.500-2.000	20.0 18.0 15.0	15.0 11.0 8.0
	6101-T63 6101-H111 6101-T64 6101-T65	0.125-0.500 0.250-2.000 0.125-1.000 0.125-0.749	27.0 12.0 15.0 25.0	22.0 8.0 8.0 20.0	14.0	11.0
Extruded pipe(c)	6061-T6 6063-T6	Pipe size 1.0 & over Pipe sizes,all	38.0 30.0	35.0 25.0	45.0 35.0	40.0 31.0	10.0 min 8.0 min
Rolled bar	1350-H12	0.125-1.000	12.0	8.0	14.0	12.0
Sawed-plate bar or sheet	1350-H112	0.125-0.499 0.500-1.000 1.001-3.000	11.0 10.0 9.0	6.0 4.0 3.5			10.0min 16.0min 22.0min
Rolled sheet (for shearing or forming)	1350 1350-H12 1350-H14	0.020-0.249	8.0 12.0 14.0		12.0 14.0 16.0	4.0 12.0 14.0	20-30 min 4-9 min 3-6 min
Rolled sheet (for shearing or forming)	1350-H16 1350-H18	0.020-0.125	16.0 18.0		18.0	16.0	2-4 min 2-4 min
Cast Alloy for Bus	1350-F 1050	1 in. And up			8.5	3.5	35.0
Cast Alloy for Fittings	A356.0-T61		37.0				5.0

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Electrical grade aluminum bus bar

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