Name: China Cheap Furnace Graphite Electrode RP UHP Hp Grade Manufacturers Suppliers Factory - ZhenAn International
Brand: ZhenAn
SKU: 279683636

Furnace Graphite Electrode RP UHP Hp grade

Actual diameters					Actual lengths
Mm	Mm	MAX	MIN	Rough spot	Length	Tolerance	Shot Ruler size
200	8	204	201	198	1600	±100	-275
250	10	256	252	248	1600 1800
300	12	307	303	299
350	14	357	353	347
400	16	409	404	400	1600 1800 2000
450	18	460	455	451
500	20	511	506	502
600	24	613	607	604
780	31.2	782	776	774	2000 2200 2400	±100	-400
800	32	802	796	794
870	34.8	872	866	862
900	36	902	896	892
920	36.8	922	916	912
960	38.4	962	956	952
1020	40.8	1022	1016	1012	2200 2600 2800
1060	42.4	1062	1056	1052
1100	44	1102	1092	1092
1146	45.8	1148	1140	1138
1197	47.9	1199	1191	1189
1250	50	1252	1244	1242
1272	50.9	1274	1266	1264
1305	54.4	1307	1299	1297
1321	52.8	1323	1315	1313
1400	56	1402	1394	1392

Welcome to contact us for quotation.

Email：info@zaferroalloy.com

Why is grade selection (RP/HP/UHP) crucial when specifying graphite electrodes for furnace operations?

Grade selection directly impacts furnace uptime, energy costs, and product quality:

•Mismatched grade risks: Using an RP electrode in a high-power furnace may cause overheating, breakage, or excessive energy loss, halting production. Conversely, an over-spec UHP electrode in a small furnace increases costs without benefits.

•Process compatibility: UHP electrodes require precise current control and furnace lining maintenance (e.g., low-ash refractories) to maximize lifespan. HP/RP electrodes tolerate more variability but limit throughput.

•Economic balance: While UHP electrodes have higher upfront costs (~20-30% premium over HP), their energy savings and extended service life (15-20 heats vs. 10-12 for RP) often yield lower lifecycle costs for large-scale operations.

Thus, grade selection hinges on furnace size, target power input, and operational priorities (efficiency vs. cost).