Regular Power Grade Graphite Electrodes with nipples

  Product Description    Regular Power Grade Graphite Electrodes with nipples   Grade: RP   Diameter:75-600 mm   Length: 1300/1800/2100   Nipple: 3TPI, 4TPI, 4TPIL   Material: Made of high quality petroleum coke, needle coke and coal tar pitch, appreciated by many foreign clients.      

Technical properties of RP graphite electrode
1. Physical and chemical index
ltem		unit	Nominal Diameter(mm)
			YB/T4088-2000				Typical Values
			Industry Standard
			75-130	150-225	250-300	350-550	75-130	150-225	250-300	300-550
Electric Resistivity	Electrode	μΩ·m	≤9.0	≤9.0	≤9.0	≤9.0	≤8.0	≤8.5	≤8.5	≤9.0
	Nipple		≤8.5	≤8.5	≤8.5	≤8.5	≤6.5	≤6.8	≤7.0	≤7.0
Bending strength	Electrode	Mpa	≥9.8	≥9.8	≥7.8	≥6.4	≥9.8	≥7.8	≥7.8	≥8.0
	Nipple		≥13.0	≥13.0	≥13.0	≥13.0	≥13	≥13.0	≥13.0	≥15.0
Elastic modulus	Electrode	Gpa	≤9.3	≤9.3	≤9.3	≤9.3	≤9.3	≤9.3	≤9.3	≤9.0
	Nipple		≤14.0	≤14.0	≤14.0	≤14.0	≤14.0	≤14.0	≤14.0	≤13.0
Bulk density	Electrode	g/cm3	≥1.58	≥1.52	≥1.52	≥1.52	≥1.60	≥1.56	≥1.56	≥1.55
	Nipple		≥1.63	≥1.63	≥1.68	≥1.68	≥1.70	≥1.72	≥1.72	≥1.70
Ash	Electrode	%	≤0.5	≤0.5	≤0.5	≤0.5	≤0.4	≤0.4	≤0.4	≤0.4
	Nipple
CTE     (100-600)°C	Electrode	10-6/°C	≤2.9	≤2.9	≤2.9	≤2.9	≤2.8	≤2.8	≤2.8	≤2.7
	Nipple		≤2.7	≤2.7	≤2.8	≤2.8	≤2.6	≤2.6	≤2.6	≤2.5
2. Current Carrying Capacity And Current Density
Nominal diameter		Regular power
mm	inch	Current load A					Current density A/cm2
75	3	1000-1400					22-31
100	4	1500-2400					19-30
130	5	2200-3400					17-26
150	6	3000-4500					16-25
175	7	35800-5100					16-21
200	8	5000-6900					15-21
225	9	6000-8000					15-20
250	10	7000-10000					15-20
300	12	10000-13000					14-18
350	14	13500-18000					14-18
400	16	18000-23500					14-18
450	18	22000-27000					13-17
500	20	25000-32000					13-16
550	22	32000-40000					13-16
600	24	38000-47000					13-16

  Applications Electrodes in electric arc furnace and ladle refining furnace for steel making; Electrodes in electric smelting furnace for producing industrial silicon, yellow phosphorus, corundum and so on. Programmable properties Good electrical conductivity. High resistance to thermal shock High mechanical strength    Exhibition


      Packaging & Shipping      Packed in wooden cases with steel strips Delivery: within 25days after receiving the prepayment.         Company Information      Experience We are one of leading graphite electrode manufacture in China,     the capacity is 30000 Tons per year ,we exported graphite electrode, graphite block, graphite rod to Europe, South Africa, Southeast Asia, Russia and so on. Quality System: Our factory has got ISO 9001 quality management system certificate.      Our Services    20 years experience in graphite electrode field Superior quality with competitive price Short delivery time Length upon customer’s requirement Good after-sale service   FAQ    FAQ MOQ? If for trial order,we accept1-5mt Delivery time? To make the shipment fast, we have large quantity in stock, normally delivery time will be 25 to 30 days when confirm the order Price? Before inquiry us the price, pls be kindly send us the detail data of the material you need. We will give you our best price Payment terms?  It is 30%in advance by T/T, or L/C at sight. Trade or Manufacture? We are manufacturer, our factory is located in Xuzhou,Jiangsu province. Production Capacity?  30000 tons per year