CS200552B1 - Supplementary material for welding the microalloyed and lowalloyed construction steels - Google Patents
Supplementary material for welding the microalloyed and lowalloyed construction steels Download PDFInfo
- Publication number
- CS200552B1 CS200552B1 CS223178A CS223178A CS200552B1 CS 200552 B1 CS200552 B1 CS 200552B1 CS 223178 A CS223178 A CS 223178A CS 223178 A CS223178 A CS 223178A CS 200552 B1 CS200552 B1 CS 200552B1
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- weight
- welding
- microalloyed
- lowalloyed
- supplementary material
- Prior art date
Links
- 238000003466 welding Methods 0.000 title claims description 11
- 229910000831 Steel Inorganic materials 0.000 title claims description 9
- 239000010959 steel Substances 0.000 title claims description 9
- 238000010276 construction Methods 0.000 title description 2
- 239000000463 material Substances 0.000 claims description 10
- 229910052720 vanadium Inorganic materials 0.000 claims description 7
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 6
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 description 6
- 239000010955 niobium Substances 0.000 description 6
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000000945 filler Substances 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- QFGIVKNKFPCKAW-UHFFFAOYSA-N [Mn].[C] Chemical compound [Mn].[C] QFGIVKNKFPCKAW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Landscapes
- Nonmetallic Welding Materials (AREA)
Description
Vynález aa týká přídavného materiálu na žvárenie mikrolegovaných alebo nízkolegovaných konštrukčných ocelí pri použití technologie zvárania pod tavivom.The invention aa relates to an additive material for welding microalloyed or low alloyed structural steels using flux welding technology.
V súčasnej době sú známe přídavné materiály pre zváranie pod tavivom mikrolegovaných , alebo nízkolegovaných ocelí, ktoré majú.do 0,15 hmotových % uhlíka, 0,1 - 0,4 hmotových % kremíka a do 1,5 hmotových % mangánu, pričom pre zaistenie dostatočných plastických vlast ností, najma však hodn&t vrubovéj húževnatosti pri požadovaných záporných teplotách, sú Sálej legované molybdénom do 1 hmotového % alebo niklom do 2 hmotových %, pričom mázu obsahovat 'a j iné prvky od 0,2 hmotových?! do 0,3 hmotových?!. Uvedené přídavné materiály nedávajú taká kvalitu zvarového kovu, ktorá by ž híadiska vrubovej húževnatosti mohla byú zrovnatelná s kvalitou zváranej ocele. Zvarový kov krehne najma pri vačšom premiešaní so zváranou ocelkou, čo vyžaduje limitovanie použitého měrného příkonu zvárania. Zvlášt'vypuklé sú tieto problémy pri zváraní ocelí, mikrolegovaných niobom alebo kombináoiou niobu a nanádu v množstve 0,03. - 0,15 hmotových % .At present, there are known filler materials for fusion welding of microalloyed or low alloy steels having up to 0.15 wt% carbon, 0.1-0.4 wt% silicon and up to 1.5 wt% manganese, while providing Sufficient plastic properties, but in particular notch toughness at the desired negative temperatures, are still alloyed with molybdenum up to 1 wt.% or nickel up to 2 wt.%, and may contain other elements from 0.2 wt. up to 0.3 wt. Said filler materials do not give a quality of the weld metal that can be compared with the quality of the welded steel in terms of notch toughness. The weld metal embrittles especially when mixed with the welded steel, which requires limiting the specific welding power used. These problems are particularly pronounced when welding steels microalloyed with niobium or a combination of niobium and nanad in an amount of 0.03. - 0.15% by weight.
Uvedené nedostatky odstraňuje přídavný materiál podía vynálezu, ktorý obsahuje od 0,05 do 0,5 hmotových ?! uhlíka, od 0,8 do 1,6 hmotových % mangánu, od 0,20 do 0,30 hmotových % kremíka, od 0,01 hmotových % do 0,03 hmotových % hliníka, od 0,1 do 0,3 hmotových ?! titanu, od 0,05 hmotových % vanádu tak, aby obsah titanu a vanádu spolu nepřevyšoval 0,3 hmotových % , pričom zvyšok tvoří železo a Sal'šie nevyhnutné nečistoty.The above-mentioned drawbacks are overcome by the additive material according to the invention, which contains from 0.05 to 0.5% by weight. carbon, from 0.8 to 1.6 wt% manganese, from 0.20 to 0.30 wt% silicon, from 0.01 wt% to 0.03 wt% aluminum, from 0.1 to 0.3 wt%? ! titanium, from 0.05% by weight of vanadium so that the titanium and vanadium content do not exceed 0.3% by weight together, the remainder being iron and more necessary impurities.
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Použitím přídavného materiálu podía vynálezu aa uvedené nedostatky do značnej miery odstránia. Přídavný materiál podía vynálezu má upravené chemické zloženie legovacích prvkov tak, že okrem potřebného množstva kremíka a manganu obsahuje iba nízké legovanie molybdénom, pričom kompenzáoia nepriaznivého vplynu premiešania niobu a vanadu zo zváranej ooele je realizovaná áal'síra mikrolegovaním drStu skupinou kovov hliník-titan-vanád.By using the additive material according to the invention and the above-mentioned drawbacks, these disadvantages are largely eliminated. The additive material according to the invention has a modified chemical composition of the alloying elements such that, besides the required amount of silicon and manganese, it contains only low alloying with molybdenum, while compensating for the adverse effect of niobium and vanadium. .
Přídavný materiál podía vynález* , za použitia bazického taviva taveného alebo keramického, možno použit* pre zváranie horeuvedených ocelí, kde sa vyžaduje vyšší stupeň premiešania — 70 - 85 hmotových % a vyššie měrné příkony zvárania, tj. 25 - 40 kJ/cm, H pričom sú požadované tranzitnó teploty vrubovej húževnatosti středu zvarového kovu, pri použití teliesok s ostrým vrubom pri - 40° C alebo nižšie.The filler material according to the invention, using basic fused or ceramic flux, can be used for welding the above steels where a higher degree of mixing is required - 70-85 wt.% And a higher specific welding input, i.e. 25-40 kJ / cm. wherein the transition temperatures of the notch toughness of the weld metal center are required, using sharp notch bodies at -40 ° C or below.
Podía vynálezu vyrobený přídavný materiál o zložení 0,06 homotových % uhlíka, 1,27 hmotových % manganu, 0,21 hmotových % kremíka, 0,47 hmotovýc.h % molybdénu, 0,12 hmatových % titanu, 0,05 hmotových % vanádu a 0,03 hmotových % hliníka, pričom zvyšok tvořil železo a . áaíšie nevyhnutné nečistoty, dával pri zváraní ooele obsahujúcej 0,05 hmotových % uhlíka , 1,98 hmotových % mangánu, 0,16 hmotových % kremíka, 0,25 hmotových % fosforu, 0,014 hmotových % síry, 0,26 hmotových % molybdénu, 0,091 hmotových % niobu a 0,1 hmotových % hliníka, s měrným tepelným príkonom 34 kJ/om, takéto hodnoty mechanických vlastností zvarového kovuí s bázickým tavivonu O'' Kt = 550 , Z^Pt“ 65° MPa , = 22,7 % Ψ = 62,2 % tranzitná teplota / pre hladinu Rv= ,35 J/am2 / = -50° G .Additive material made according to the invention, composed of 0.06 wt% carbon, 1.27 wt% manganese, 0.21 wt% silicon, 0.47 wt% molybdenum, 0.12 tactile% titanium, 0.05 wt% vanadium and 0.03 wt% aluminum, the remainder being iron and. and other necessary impurities when welding ooele containing 0.05 wt% carbon, 1.98 wt% manganese, 0.16 wt% silicon, 0.25 wt% phosphorus, 0.014 wt% sulfur, 0.26 wt% molybdenum, 0.091 wt% % by weight of niobium and 0.1% by weight of aluminum, with a specific heat input of 34 kJ / m, such values of the mechanical properties of the weld metal with a basic flux O '' Kt = 550 , Z ^ Pt ' 6 5 ° MPa, = 22.7% Ψ = 62.2% transit temperature (for level Rv = .35 J / am 2 ) = -50 ° G.
S keramickým tavivom» = 544 MPa, (7^ = 638 MPa, 22 % Ψ = 67,8 % tranzitná teplota - 70° C .With ceramic flux »= 544 MPa, (7 ^ = 638 MPa, 22% Ψ = 67.8% transit temperature - 70 ° C).
Na podobných konštrukčnýeh zvariteíných oceliach uhlík-mangánových, mikrolegovanýoh nióbom a vanádom, alebo nízkolegovaných nióbom / 0,40 hmotových-% / , resp.chrómom / 0,30 hmoto vých % / holi získané tranzitně teploty středu zvarového kovu v stave po zvarení v roz medzi - 40 až - 60° C .On similar structural weldable steels of carbon-manganese, microalloyed with niobium and vanadium, or low-alloyed with niobium (0.40 wt.%) Or chromium (0.30 wt.%), The transition temperatures of the center of the weld metal in the post-weld condition between - 40 to - 60 ° C.
Přídavný materiál podía vynálezu najde uplatnenie pri zváraní rúrovodov, nízkotéplot nýoh tlakových nádob, guíových zásobníkov ako aj zváraných konštrukcií.The filler material according to the invention finds application in the welding of pipelines, low-temperature pressure vessels, spherical containers as well as welded constructions.
PREDMETSUBJECT
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS223178A CS200552B1 (en) | 1978-04-06 | 1978-04-06 | Supplementary material for welding the microalloyed and lowalloyed construction steels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS223178A CS200552B1 (en) | 1978-04-06 | 1978-04-06 | Supplementary material for welding the microalloyed and lowalloyed construction steels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS200552B1 true CS200552B1 (en) | 1980-09-15 |
Family
ID=5358828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS223178A CS200552B1 (en) | 1978-04-06 | 1978-04-06 | Supplementary material for welding the microalloyed and lowalloyed construction steels |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS200552B1 (en) |
-
1978
- 1978-04-06 CS CS223178A patent/CS200552B1/en unknown
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