One stop service for steel industry

graphite electrode rfq

LMM GROUP Graphite electrode advangtage:

The first UHP Grade manufacturer in China
100% neddle coke from Japan and UK

LMM GROUP is a world leader in graphite material science with many years of experience. Our company strictly manages our manufacturing processes with ISO 9001:2008 quality system and Graphite electrode ISO-system, utilizes ERP system to ensure our products are delivered on time to the right customers with lowered inventories to gain competitive advantages. Our main laboratory is recognized as national registered laboratory which identifies the quality of the carbon products.

LMM GROUP certification

Package:

Standard export carton packing.

Delivery Time:

3-20 days after confirming order,detail delivery date should be decided according to
production season and order quantity.

graphite electrode supplier

TYPICAL PROPERTIES OF HP GRAPHITE ELECTRODE

Items Unit Ф250-400mm Ф450-600mm Method
of inspection
YB YB
Specific
resistance not over
Electrode MΩm 7.0 7.5 YB/T120
Nipple 6.5 6.5
Transverse
strength not over
Electrode Mpa 10.5 9.8 GB3074.1
Nipple 14.0 14.0
Elastic
modulus not over
Electrode Gpa 12.0 12.0 GB3074.2
Nipple 16.0 16.0
Bulk
density not below
Electrode G/cm3 1.60 1.60 YB/T119
Nipple 1.70 1.70
(C.T.E)not
over
Electrode 10?-6/℃ 2.4 2.4 GB3074.4
Nipple 2.2 2.2
Ash
content not over
Electrode % 0.3 0.3 Gb1429
Nipple 0.3 0.3

 

TYPICAL PROPERTIES OF RP GRAPHITE ELECTRODE

Items Unit Ф250-300mm Ф350-600mm
YB YB
Specific resistance not over Electrode MΩm 9.0 9.0
Nipple 8.5 8.5
Transverse strength not over Electrode Mpa 7.8 6.4
Nipple 13.0 13.0
Elastic modulus not over Electrode Gpa 9.3 9.3
Nipple 14.0 14.0
Bulk density not below Electrode G/cm3 1.52 1.52
Nipple 1.68 1.68
(C.T.E)not over Electrode 10?-6/℃ 2.9 2.9
Nipple 2.8 2.8
Ash content not over Electrode % 0.5 0.5
Nipple 0.5 0.5

 

Typical Properties of UHP Graphite electrode

Applicable Furnace

Property

AC Furnace DC Furnace
300-400mmm

12”~16”

450-500mm

18”~20”

550~600mm

22”~24”

600~700mm

24”~28”

Bulk Density g/cm3 1.65-1.76 1.64-1.75 1.64-1.75 1.64-1.75
Specific Resistance μΩm 4.2-6.0 4.2-6.0 4.2-6.0 4.2-5.5
Elastic Modulus Gpa 7-14 7-14 7-14 7-14
Kgf/mm2 700-1400 700-1400 700-1400 700-1400
Flexural Strength Mpa 10.5-15 10-15 10-15 10-15
Kgf/mm2 105-150 100-150 100-150 100-150
N/cm2 1050-1500 1000-1500 1000-1500 1000-1500
(R.T.~600℃)

Coefficient of
Thermal

Expansion(R.T.~600℃)

*10^-6/℃ 1.0-1.5 1.0-1.5 1.0-1.5 1.0-1.4
Real Density g/cm3 2.20-2.23 2.20-2.23 2.20-2.23 2.20-2.23
Porosity % 20-26 20-27 20-27 20-27
Ash Content % ≤0.2 ≤0.2 ≤0.2 ≤0.2
Current- Carrying Capacities of UHP Graphite electrodes
Specifications Current(A) Current
Density(A/cm2)
(inch) (mm) AC DC AC DC
12 300 18,000-32,000 24-43
14 350 22,000-39,000 22-39
16 400 28,000-47,000 21-36
18 450 34,000-55,000 21-33
20 500 41,000-63,000 20-31
22 550 48,000-70,000 65,000-78,000 19-28 26-32
24 600 55,000-80,000 75,000-90,000 19-27 26-31
26 650 69,000-89,000 87,000-104,000 20-26 25-30
28 700 80,000-100,000 100,000-120,000 20-25 25-30

 

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As professional one-stop solution provider, LIAONING MINERAL & METALLURGY GROUP CO., LTD(LMM GROUP) Established in 2007, and focus on engineering research & design, production & delivery, technology transfer, installation & commissioning, construction & building, operation & management for iron, steel & metallurgical industries globally. 

Our product  have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel etc. We do OEM for Concast and Danieli for a long time.

LMM Main product series

Core technology products:

  • magnesia carbon brick
  • slide gate plate
  • graphite electrode

Core technology products:

  • Hss roller
  • cast steel rolls
  • tungten carbide ring roller

Core technology products:

  • copper mould tube
  • copper mould plate
  • assembly & cooling jackts

Need For Some Help ?

Professional engineers provide solutions and technical drawings

phone

86(411) 84174804

mail

lmme-business@lmmgroup.com.cn

Special product design, please send specific data and drawings to our mailbox or form.

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