Quality Inspection for Graphite Electrode With 4tpi Nipple - RP GRAPHITE ELECTRODE – Good Electrical Conductivity, Low Consumption – Aohui

Quality Inspection for Graphite Electrode With 4tpi Nipple - RP GRAPHITE ELECTRODE – Good Electrical Conductivity, Low Consumption – Aohui

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Sticking to the belief of "Creating products of high quality and making friends with people from all over the world", we always put the interest of customers in the first place for UHP 500 graphite , steel melting industry , high density graphite electrode , Standing still today and searching into the long run, we sincerely welcome shoppers all around the globe to cooperate with us.
Quality Inspection for Graphite Electrode With 4tpi Nipple - RP GRAPHITE ELECTRODE – Good Electrical Conductivity, Low Consumption – Aohui Detail:

DESCRIPTION

RP graphite electrodes, referred to moulded columns of graphite, are used as the high temperature conductive material for electric arc furnaces. Regular power graphite electrodes are specified with allowable current density less than 17 A/cm2. The quality of the graphite electrode determines the productivity and cost of EAF steelmaking.

As a manufacturer, we also provide UHP grade graphite electrodes and HP grade graphite electrodes for ultra high power or high power electric arc furnaces. In addition to being used in arc furnaces, graphite electrodes are also widely used in submerged arc furnaces and Ladle furnaces.

FEATURE

High current carrying capacity.
Outstanding resistance to breakage.
High resistance to oxidation and thermal shock.
Good dimension stability, not easy to deform.
High mechanical strength, low electrical resistance.
High machining accuracy, good surface finishing.

APPLICATION

Graphite electrodes are widely used for production of alloy steels, metal and other nonmetallic materials, etc.

SPECIFICATION

Table 1: Technical Specification of RP Graphite Electrode

Dia. Resistance Density Flexure Strength Elastic Modulus Ash Content CTE Current Load Current Density
(inch) (≤, µΩ·m) (≥, g/cm3) (≥, MPa) (≤, GPa) (≤, %) (100 °C – 60 °C) (A) (A/cm2)
(≤, 10-6/°C)
8 8.0 1.58 10.0 9.3 0.5 2.9 5000–6900 15–21
9 8.0 1.58 8.5 9.3 0.5 2.9 6100–8600 15–21
10 8.0 1.58 8.5 9.3 0.5 2.9 7000–10000 14–20
12 8.0 1.58 8.5 9.3 0.5 2.9 10000–13000 14–18
14 8.0 1.57 7.5 9.3 0.5 2.9 13500–18000 14–18
16 8.0 1.57 7.5 9.3 0.5 2.9 18000–23500 14–18
18 8.0 1.57 7.5 9.3 0.5 2.9 22000–27000 13–17
20 8.0 1.57 7.5 9.3 0.5 2.9 25000–32000 13–16
22 8.0 1.57 7.5 9.3 0.5 2.9 32000–40000 13–16
24 8.0 1.57 7.5 9.3 0.5 2.9 38000–47000 13–16

Table 2: Graphite Electrode Size & Tolerance

Diameter (mm) Length (mm)
Nominal Diameter Actual Diameter Nominal Length Tolerance Short Length
(inch) (mm) (max.) (min.) (rough spot)
8 200 205 200 197 1600 ±100 -275
9 225 230 225 222 1600
10 250 256 251 248 1600/1800
12 300 307 302 299 1600/1800
14 350 357 352 349 1600/1800
16 400 409 403 400 1600/1800/2000/2200
18 450 460 454 451 1600/1800/2000/2200
20 500 511 505 502 1800/2000/2200/2400
22 550 562 556 553 1800/2000/2200/2400
24 600 613 607 604 2000/2200/2400

SURFACE QUALITY

There should be less than two defects or holes on the electrode surface, the maximum size of which is mentioned in the below chart.
There should be no transverse crack on the electrode surface. For the longitudinal crack, the length should be less than 5% of the electrode circumference and the width should be 0.3 mm to 1.0 mm.
The width of black area on electrode surface should be less than 1/10 of the electrode circumference and the length should be less than 1/3 of the electrode.

SpecificationDefect Dimension Nominal Diameter of Graphite Electrode (mm)
300–400 450–600
Diameter (mm) 20–40 30–50
(< 20 mm should be negligible) (< 30 mm should be negligible)
Depth (mm) 5–10 10–15
(< 5 mm should be negligible) (< 10 mm should be negligible)

Product detail pictures:

Quality Inspection for Graphite Electrode With 4tpi Nipple - RP GRAPHITE ELECTRODE – Good Electrical Conductivity, Low Consumption – Aohui detail pictures

Quality Inspection for Graphite Electrode With 4tpi Nipple - RP GRAPHITE ELECTRODE – Good Electrical Conductivity, Low Consumption – Aohui detail pictures

Quality Inspection for Graphite Electrode With 4tpi Nipple - RP GRAPHITE ELECTRODE – Good Electrical Conductivity, Low Consumption – Aohui detail pictures


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"Quality first, Honesty as base, Sincere service and mutual profit" is our idea, in order to develop continuously and pursue the excellence for Quality Inspection for Graphite Electrode With 4tpi Nipple - RP GRAPHITE ELECTRODE – Good Electrical Conductivity, Low Consumption – Aohui , The product will supply to all over the world, such as: Paris, Oman, Detroit, The quality of our products is equal to OEM's quality, because our core parts are the same with OEM supplier. The above products have passed professional certification, and we not only can produce OEM-standard products but we also accept Customized Products order.

Q1: Is your company AO HUI a manufacturer or trader?
A1: Manufacturer, some time we help our clients to purchase relevant products as a trader.
Q2: What’s the MOQ?
A2. No limitation.
Q3: Can we visit your factory?
A3: Of course ,welcome at any time,seeing is believing
Q4: What’s your payment terms?
A4: Negotiation
Q5: Is your company accept customization?
A5: Professional technology teams and engineers all can satisfy you.
Q6: How do you guarantee quality?
A6: For every production processing,we have complete QC system for the chemical composition and Physical properties.After production,all the goods will be tested ,and the quality certificate will be shipped along with goods.
Q7: What’s the proportion of abroad business?
A7: Abroad market around 50%; Domestic market around 50%; and now export proportion is increasing.
Q8: Your company would provide samples?
A8: Yes, we could supply samples for free, and the freight will be undertaken by clients.

  • This company has a lot of ready-made options to choose and also could custom new program according to our demand, which is very nice to meet our needs.
    5 Stars By Nick from Saudi Arabia - 2018.10.09 19:07
    Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.
    5 Stars By Sharon from Denmark - 2018.09.23 18:44
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