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Welding Rod and Ring

Exhibition of Welding Rod and Ring

Welding rods and rings are welding supplies used in the welding process as a filler to create a strong bond between fused pieces of metal. The welding rod consists of a metal welding core and electrode coating, both of which comply with industry standards. The rod and ring are available in a variety of materials, sizes and quantities, as seen below:

Rod Size: 1.32 x 3.2 x500mm(flat);
3 x 3 x 500mm(square);
2 x 2 x 500mm(square);
∮2.0~3.0 x 500mm (round).

Ring Size: 1/4",3/8",1/2",5/8",3/4".

Technical Specifications of Welding Rod and Ring
(Phosphorus-containing Brazing Alloys (Cu-P),(Ag-P-Cu)

Part No. Chemical Composition (%)
Ag / P / Cu
Melting Range (℃)
Solidus Liquidus
Cross Reference
A WS A5.8 DIN8513 BS1845
LD-7P -- / 6.8~7.5 / Remain 710 800 BCuP-2 L-CuP7 CP3
LD-2B 1.8~2.2 / 6.8~7.2 / Remain 645 788 BCuP-6 L-Ag2P CP2
LD-5B 4.8~5.2 / 5.8~6.7 / Remain 645 815 BCuP-3 L-Ag5p CP4
LD-6B 6.0 / 7.25 / Remain 645 724 BCuP-4 -- --
LD-15B 14.5~15.5 / 4.8~5.3 / Remain 645 800 BCuP-5 L-Ag15P CP1

Technical Specifications of Welding Rod and Ring
(Silver Brazing Alloys (Ag-Cu-Zn),(Ag-Cu-Zn-Ni),(Ag-Cu-Zn-Cd)

Part No. Chemical Composition (%) Ag, Cu, Zn, Sn, Ni, Cd. Melting Range(℃) Solidus Liquidus Cross Reference A WS A5.8
LD-60B 59-61 28-32 -- -- -- -- 600 730 BAg-18
LD-50B 49-51 33-35 14-18 -- -- -- 688 774 BAg-6
LD-45B 44-46 29-31 24-27 -- -- -- 677 743 BAg-5
LD-30B 29-31 60-62 31-33 -- -- -- 680 765 BAg-20
LD-25B 24-26 40-42 33-35 -- -- -- 700 790 --
LD-20B 19-21 44-46 33-37 -- -- -- 690 810 --
LD-56BSn 55-57 21-23 15-19 4.5-5.5 -- -- 620 655 BAg-7
LD-45BSn 44-46 26-28 23-27 2.5-3.5 -- -- 640 680 BAg-36
LD-40BSn 39-41 29-31 27-29 1.5-2.5 -- -- 650 710 BAg-28
LD-34BSn 33-35 35-37 25-29 2.5-3.5 -- -- 630 730 --
LD-30BSn 29-31 35-37 31-33 1.5-2.5 -- -- 665 755 --
LD-25BSn 24-26 39-41 32-34 1.5-2.5 -- -- 680 760 --
LD-40BNi 39-41 29-31 26-30 -- 1.5-2.0 -- 660 780 BAg-4
LD-50BNi 49-51 19-51 26-30 -- 1.5~2.5 -- 660 707 BAg-24
LD-49BMnNi 48-50 15-17 22-25 -- 4.0-5.0 Mn:6.5-8.5 680 700 BAg-22
LD-20BCd 19-20.5 39-41 24-26 -- -- 13-17 620 765 --
LD-25BCd 24-26 29-31 26-29 -- -- 16.5-18.5 605 720 BAg-27
LD-30BCd 29-31 27-29 20-22 -- -- 20-22 600 690 BAg-2a
LD-35BCd 34-36 25-29 19-24 -- -- 17-19 605 700 BAg-2
LD-40BCd 39-41 15.5-16.5 19-23 -- -- 18-22 595 630 --
LD-45BCd 44-46 14-16 14-18 -- -- 23-25 595 620 BAg-1
LD-50BCd 49-51 14.5-16.5 14.5-18.5 -- -- 17-19 625 635 BAg-1a
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