Chart for Tungsten Electrodes

SuperArc: Precision-machined disposable tungsten electrodes for reproducible orbital welding. Cut your costs, because each new manual sharpening operation costs time and money. Standard quality WC 20 to DIN EN ISO 6848.

Finished dimensions for all ORBITEC weld heads as a function of the tube outer diameter.

Ø 1,0 mm, All lengths available, Ø Tip surface 0,1 mm, Polished section 30°
Ø 1,6 mm, All lengths available, Ø Tip surface 0,2 mm, Polished section 18
Ø 2,4 mm, All lengths available, Ø Tip surface 0,4 mm, Polished section 30°

SuperArc tungsten electrode Ø 1.0 mm - 1.2.0202 + Length
SuperArc tungsten electrode Ø 1.6 mm - 1.2.0200 + Length
SuperArc tungsten electrode Ø 2.4 mm - 1.2.0201 + Length

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Weld head		OSK 13 S*		OSK 21 CS/CW		OSK 38 CS/CW		OSK 53 S/SW		OSK 76 S/SW		OSK 115 S/SW		OSK 170 GW
Tube Ø
mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch	mm	inch
3,17	0,125	14	0,551	26	1,024	40	1,575
6,00	0,236	12	0,472	25	0,984	39	1,535	48	1,889	64	2,520
6,35	0,250	12	0,472	25	0,984	39	1,535	47	1,850	63	2,480
8,00	0,315	11	0,433	24	0,945	38	1,496	47	1,850	63	2,480
9,53	0,375	10	0,394	23	0,906	37	1,457	46	1,811	62	2,441	82	3,228
10,00	0,394	10	0,394	23	0,906	37	1,457	46	1,811	62	2,441	82	3,228
10,20	0,402	10	0,394	22	0,866	36	1,417	46	1,811	61	2,402	81	3,189
12,00	0,472	9	0,354	22	0,866	36	1,417	45	1,771	61	2,402	81	3,189
12,70	0,500	9	0,354	21	0,827	35	1,378	44	1,732	60	2,362	80	3,150
13,00	0,512			21	0,827	35	1,378	44	1,732	60	2,362	80	3,150
13,50	0,531			21	0,827	35	1,378	44	1,732	60	2,362	80	3,150
15,88	0,625			20	0,787	34	1,339	43	1,692	59	2,323	79	3,110
16,00	0,630			20	0,787	34	1,339	43	1,692	59	2,323	79	3,110
17,20	0,677			19	0,748	33	1,299	42	1,653	58	2,283	78	3,071
18,00	0,709			18	0,709	32	1,260	41	1,614	57	2,244	77	3,031
19,00	0,748			17	0,669	31	1,220	40	1,574	56	2,205	76	2,992
19,05	0,750			17	0,669	31	1,220	40	1,574	56	2,205	76	2,992
20,00	0,787			17	0,669	31	1,220	39	1,535	56	2,205	76	2,992
21,30	0,839			16	0,630	30	1,181	39	1,535	55	2,165	75	2,953
22,00	0,866					30	1,181	39	1,535	55	2,165	75	2,953
23,00	0,906					29	1,142	38	1,496	54	2,126	74	2,913
25,40	1,000					28	1,102	37	1,456	53	2,087	73	2,874
26,90	1,059					27	1,063	36	1,417	52	2,047	72	2,835
28,00	1,102					27	1,063	36	1,417	52	2,047	72	2,835
29,00	1,142					26	1,024	35	1,377	51	2,008	71	2,795
30,00	1,181					26	1,024	35	1,377	51	2,008	71	2,795
33,70	1,327					24	0,945	33	1,299	49	1,929	69	2,717
35,00	1,378					23	0,906	32	1,259	48	1,890	68	2,677
38,10	1,500					22	0,866	31	1,220	46	1,811	66	2,598
40,00	1,575					21	0,827	30	1,181	46	1,811	66	2,598
41,00	1,614							29	1,141	45	1,772	65	2,559
42,40	1,669							28	1,102	44	1,732	64	2,520
44,50	1,752							27	1,062	43	1,693	63	2,480
48,30	1,902							25	0,984	41	1,614	61	2,402
50,80	2,000							24	0,944	40	1,575	60	2,362	90	3,453
51,00	2,008							24	0,944	40	1,575	60	2,362	90	3,453
52,00	2,047							24	0,944	40	1,575	60	2,362	90	3,453
53,00	2,087							23	0,905	39	1,535	59	2,323	89	3,504
54,00	2,126									39	1,535	59	2,323	89	3,054
60,30	2,374									35	1,378	55	2,165	85	3,346
63,50	2,500									34	1,339	54	2,126	84	3,307
70,00	2,756									31	1,220	51	2,008	81	3,189
76,10	2,996									27	1,063	47	1,850	78	3,071
76,20	3,000									27	1,063	47	1,850	78	3,071
85,00	3,346											43	1,693	74	2,913
88,90	3,500											41	1,614	71	2,795
101,60	4,000											35	1,378	65	2,559
104,00	4,094											34	1,339	64	2,520
108,00	4,252											32	1,260	64	2,520
114,30	4,500											28	1,102	58	2,283
127,00	5,000													53	2,087
129,00	5,079													52	2,047
141,30	5,563													46	1,811
152,40	6,000													40	1,575
154,00	6,063													39	1,535
168,28	6,625													32	1,260

Electrode lengths for:

OSW 40 open weld head: 20 – 35mm | 0.787“ - 1.378“
OSW 80 – 275 open weld heads: 35 – 50mm | 1.378“ - 1.968“
RBK tube-to-tubesheet weld heads: 35 – 46mm | 1.378“ - 1.811“

* Only electrodes measuring 1.0 mm in diameter must be used for the OSK 13 S. Special lengths available on request.