Specification

Item		Unit	HP Nominal Diameter(mm)			HP Nominal Diameter(mm)
			YB/T4089 Industry Standard			Enterprise Standard
			300-400	450-500	550-700	300-400	450-500	550-700
LSR≤	Electrode	μΩ.M	7.0	7.5	7.5	6.2	6.2	6.2
	Nipple		6.3	6.3	6.3	4.3	4.3	4.3
Flexural Strength ≥	Electrode	Mpa	10.5	10.0	8.5	11.0	10.5	9.0
	Nipple		17.0	17.0	17.0	18.0	18.0	18.0
Elastic Modulus ≤	Electrode	Gpa	14.0	14.0	14.0	9.0	9.0	9.0
	Nipple		16.00	16.00	16.00	13.00	13.00	13.00
Bulk Density ≥	Electrode	g/cm³	1.60	1.60	1.60	1.67	1.67	1.67
	Nipple		1.72	1.72	1.72	1.77	1.77	1.77
CTE ≤	Electrode	10-6/ ℃	2.4	2.4	2.4	2.0	2.0	2.0
	Nipple		2.2	2.2	2.2	1.8	1.8	1.8
Ash ≤		%	0.5	0.5	0.5	0.2	0.2	0.2

Allowed Current Load

YB/T4089 Industry Standard					Enterprise Standard
					LF
Nominal Dia	Nominal Dia	Cross Sectional Area	Permissible Current Load	Current Density	Permissible Current Load	Current Density
in	mm	cm2	A	A/cm2	A	A/cm2
14	350	937	17400-24000	17-27	18270-25200	19-26
16	400	1275	21000-31000	16-24	22050-32550	17-26
18	450	1622	25000-40000	15-24	26250-42000	16-26
20	500	2000	30000-48000	15-24	31500-50400	16-25
22	550	2427	34000-53000	14-22	—
24	600	2892	38000-58000	13-21	—
28	700	3935	45000-72000	12-19	—

HP Graphite Graphite Electrode Weight

HP Graphite Electrodes			Reference Weight
Nominal Dia	Nominal Dia	Length	T3N	T3L	T4N	T4L
in	mm	mm	kg	kg	kg	kg
14	350	1800	290	—	293	290
14	350	2100	338	—	342	338
16	400	1800	379	378	383	381
16	400	2100	442	441	447	444
18	450	1800	475	473	484	480
18	450	2100	555	553	563	561
18	450	2400	638	636	646	644
20	500	1800	581	—	589	584
20	500	2100	684	—	692	687
20	500	2400	786	—	784	789
22	550	2100	—	—	—	825
22	550	2400	—	—	—	949
22	550	2700	—	—	—	1073
24	600	2400	—	—	1140	1132
24	600	2700	—	—	1287	1279
28	700	2400	—	—	—	1532
28	700	2700	—	—	—	1733

Package The graphite electrode is packed in wooden crates, and the nipples are packed in wooden cases or pre-set in the electrodes. Electrodes would be covered with polythene sheet to protect the same from dust and moisture, and fasten with steel strips, which is good looking and firm. Proper and safe seaworthy packing, easy for forklift handling. Necessary measures would be provided to avoid possible damages to nipple threads-such as protective foam and rubber caps.

Nominal Diameter		Pallet	Electrode Packing		Electrode Preset Nipple Packing
			Appr N.W.	Dimension	Appr N.W.	Dimension
mm	inch	pcs	kg	mm	kg	mm
200X1600	8X63	9	750	1700X1070X480	770	1800X1070X480
200X1700	8X67	9	800	1800X1070X480	820	1900X1070X480
250X1700	10X67	3	425	1800X820X350	438	1910X820X350
250X1800	10X71	3	450	1900X820X350	465	2010X820X350
300X1800	12X71	3	630	1900X970X400	650	2100X970X400
350X1800	14X71	3	860	1900X1120X450	885	2100X1120X450
400X1800	16X71	3	1120	1900X1270X500	1165	2100X1280X500
400X2100	16X83	3	1300	2200x1270x500	1345	2400X1280X500
450X1800	18X71	2	950	1900x970x550	990	2100X970X550
450X2100	18X83	2	1100	2200x970x550	1140	2400X970X550
500X1800	20X71	2	1200	1900X1070X600	1255	2150X1070X600
500X2100	20X83	2	1400	2200X1070X600	1455	2450X1070X600
550X2100	22X83	2	1690	2200X1170X650	1760	2450X1170X650
550X2400	22X95	2	1940	2500X1170X650	2010	2750X1170X650
600X2100	24X83	2	2000	2200X1270X500	2080	2450X1270X700
600X2400	24X95	2	2300	2500X1270X700	2380	2750X1270X700

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