{"id":1889,"date":"2024-11-27T17:16:58","date_gmt":"2024-11-27T13:46:58","guid":{"rendered":"https:\/\/ama-co.com\/?post_type=product&p=1889"},"modified":"2024-11-28T06:03:43","modified_gmt":"2024-11-28T02:33:43","slug":"1889","status":"publish","type":"product","link":"https:\/\/ama-co.com\/en\/product\/1889\/","title":{"rendered":"AMA OP121TT"},"content":{"rendered":"\n

Type\/ Characteristics:<\/strong><\/p>\n\n\n\n

Agglomerated fluoride-basic type flux, preferably used for high strength fine grain structural steels, as well as cryogenic steels and steels resistant to ageing. Owning its neutral behavior as regards pick-up and burn-out of silicon and manganese, wire electrodes having higher percentages of Si and Mn (e.g. 50-27, 50-57) should be used.
AMA-OP121TT is particularly suited for tandem and multi-wire welding. On the strength of COD tests made with, 50-57 wire electrodes, this flux is suitable to be employed for welding offshore components. The weld metal produced in combination with corresponding wire electrodes, meets high toughness requirements at cryogenic temperatures.
AMA-OP121TT produces a short slag, i.e. girth seams of components having a small diameter can be welded without the danger of the slag running off. It produces uniform welds without undercut.
AMA-OP121TT can be used on either DC (positive) or AC up to approximately 1000A.
Damp flux shall be redried by baking at 300\u00b0C \u2013 350\u00b0C
Grain size according to DIN 32 522:2-20<\/p>\n\n\n\n

Main Constituents:<\/h4>\n\n\n\n
SiO2<\/sub>+TiO2<\/sub><\/th>CaO+MgO<\/th>Al2<\/sub>O3<\/sub>+MnO<\/th>CaF2<\/sub><\/th><\/tr>
15%<\/td>40%<\/td>20%<\/td>25%<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Basicity to boniszewskii: ~3.1<\/p>\n\n\n\n

Metallurgical behavior:<\/h4>\n\n\n\n

Pick-up and burn-off the alloying elements Si and Mn as a function of the alloy content of the wire<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

electrode, DVS Merkblatt 0907, part 1<\/p>\n\n\n\n

All -Weld metal analysis (typical values):<\/h4>\n\n\n\n
AMA Trade Name<\/th>DIN\/EN<\/th>C<\/th>Si<\/th>Mn<\/th>Mo<\/th>Cr<\/th>Ni<\/th><\/tr>
50-12<\/td>S2<\/td>0.05-0.08<\/td>0.15-0.25<\/td>0.7-1.0<\/td>–<\/td>–<\/td>–<\/td><\/tr>
50-15<\/td>S3<\/td>0.05-0.08<\/td>0.15-0.25<\/td>1.0-1.4<\/td>–<\/td>–<\/td>–<\/td><\/tr>
50-57<\/td>EH12K<\/td>0.05-0.08<\/td>0.20-0.40<\/td>1.4-1.9<\/td>–<\/td>–<\/td>–<\/td><\/tr>
50-14<\/td>S2Mo<\/td>0.05-0.08<\/td>0.15-0.25<\/td>0.7-1.0<\/td>0.5<\/td>–<\/td>–<\/td><\/tr>
50-17<\/td>S3Mo<\/td>0.05-0.08<\/td>0.15-0.25<\/td>1.0-1.4<\/td>0.5<\/td>–<\/td>–<\/td><\/tr>
50-22<\/td>S2crMo1<\/td>0.05-0.08<\/td>0.20-0.30<\/td>0.7-1.0<\/td>0.5<\/td>1<\/td>–<\/td><\/tr>
50-23<\/td>S2crMo2<\/td>0.05-0.08<\/td>0.20-0.30<\/td>0.5-0.8<\/td>1.0<\/td>2.2<\/td>–<\/td><\/tr>
50-24<\/td>S2Ni1<\/td>0.05-0.08<\/td>0.25-0.40<\/td>1.0-1.3<\/td>–<\/td>–<\/td>1.0<\/td><\/tr>
50-25<\/td>S2Ni2<\/td>0.05-0.08<\/td>0.20-0.30<\/td>0.7-1.0<\/td>–<\/td>–<\/td>2.0<\/td><\/tr>
50-25<\/td>S3Ni1Mo<\/td>0.05-0.08<\/td>0.20-0.40<\/td>1.3-1.6<\/td>-0.5<\/td>–<\/td>1.0<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Mechanical properties of all-weld metal (typical values):<\/h4>\n\n\n\n
With Wire Electrode<\/th>Heat Treatment<\/th>Tensile Strength
(N\/mm 2 <\/sup>)<\/strong><\/th>		Yield Strength
(N\/mm 2 <\/sup>)<\/strong><\/th>		Elongation
Lo=5d%<\/strong><\/th><\/tr>
50-12<\/td>As Welded<\/td>450-550<\/td>> 360<\/td>> 28<\/td><\/tr>
50-15<\/td>As Welded<\/td>530-630<\/td>> 430<\/td>> 25<\/td><\/tr>
50-57<\/td>As Welded<\/td>540-640<\/td>> 450<\/td>> 24<\/td><\/tr>
50-14<\/td>As Welded<\/td>580-680<\/td>> 500<\/td>> 20<\/td><\/tr>
50-17<\/td>Tempered(1)<\/td>600-700<\/td>> 530<\/td>> 18<\/td><\/tr>
50-22<\/td>Tempered(1)<\/td>530-630<\/td>> 380<\/td>> 24<\/td><\/tr>
50-22<\/td>Norm+Temp(2)<\/td>430-530<\/td>> 310<\/td>> 30<\/td><\/tr>
50-23<\/td>Tempered(3)<\/td>550-650<\/td>> 450<\/td>> 22<\/td><\/tr>
50-23<\/td>Norm+Temp(4)<\/td>520-620<\/td>> 400<\/td>> 22<\/td><\/tr>
50-24<\/td>As Welded<\/td>500-600<\/td>> 420<\/td>> 24<\/td><\/tr>
50-24<\/td>Stress relived<\/td>480-580<\/td>> 380<\/td>> 26<\/td><\/tr>
50-25<\/td>As Welded<\/td>550-650<\/td>> 450<\/td>> 24<\/td><\/tr>
50-25<\/td>Stress relived<\/td>500-600<\/td>> 430<\/td>> 26<\/td><\/tr>
50-21<\/td>As Welded<\/td>650-750<\/td>> 540<\/td>> 20<\/td><\/tr>
50-21<\/td>Stress relived<\/td>630-730<\/td>> 540<\/td>> 22<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
<\/th>Heat Treatment<\/th>Impact energy (Joule) ISO -V<\/strong> 20\u00b0C       \u00b10\u00b0C       -20\u00b0C       -40\u00b0C       -60\u00b0C         -80\u00b0C<\/th><\/tr>
50-12<\/td>As Welded<\/td>>180      >160       >100            –               –                 –<\/td><\/tr>
50-15<\/td>As Welded<\/td>>180     >160        >100        >35              –                 –<\/td><\/tr>
50-57<\/td>As Welded<\/td>>200     >180        >140        >100         >70               –<\/td><\/tr>
50-14<\/td>As Welded<\/td>>140     >120        >100        >70             >50             –<\/td><\/tr>
50-17<\/td>As – Welded<\/td>>140     >120        >100        >70             >50             –<\/td><\/tr>
50-22<\/td>Tempered(1)<\/td>>200     >150            –               –                  –               –<\/td><\/tr>
50-22<\/td>Norm+Temp(2)<\/td>>200     >200            –               –                 –                –<\/td><\/tr>
50-23<\/td>Tempered(3)<\/td>>140    >100             –               –                 –                 –<\/td><\/tr>
50-23<\/td>Norm+Temp(4)<\/td>>140     >90              –               –                 –                 –<\/td><\/tr>
50-24<\/td>As Welded<\/td>>150     >130        >100         >70            >50             –<\/td><\/tr>
50-24<\/td>Stress relived<\/td>>170     >140        >110         >90            >70             –<\/td><\/tr>
50-25<\/td>As Welded<\/td>>160     >140        >120         >100         >70         >50<\/td><\/tr>
50-25<\/td>Stress relived<\/td>160       >140        >120         >90           >70             –<\/td><\/tr>
50-21<\/td>As Welded<\/td>>150     >120        >90           >70            >50             –<\/td><\/tr>
50-21<\/td>Stress relived<\/td>160       >140        >120         >90            >70             –<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

1)tempered: 700\u00b0C -720\u00b0C
2)norm+temp: 920\u00b0C\/air + 700\u00b0C -720\u00b0C
3)tempered: 730\u00b0C -750\u00b0C
4)norm+temp: 940\u00b0C\/air + 730\u00b0C -750\u00b0C<\/p>\n\n\n\n

Application:<\/h4>\n\n\n\n
Materials<\/th>Multi pass joint welding<\/th><\/tr>
Fine grain structural steels<\/td>With wire electrode<\/td><\/tr>
StE 255, WStE 255<\/td>50-12,50-15<\/td><\/tr>
StE 285, WStE 285<\/td>50-12,50-15<\/td><\/tr>
StE 315, WStE 315<\/td>50-12.50-15<\/td><\/tr>
StE 355, WStE 355<\/td>50-12,50-15<\/td><\/tr>
StE 380, WStE 380<\/td>50-15.50-57<\/td><\/tr>
StE 420, WStE 420<\/td>50-15,50-57<\/td><\/tr>
StE 460, WStE 460<\/td>50-57<\/td><\/tr>
StE 500, WStE 500<\/td>50-24(1),50-21(2)<\/td><\/tr>
TStE 255, EStE 255<\/td>50-24,50-15,50-57(3)<\/td><\/tr>
TStE 285, EStE 285<\/td>50-24,50-15,50-57(3)<\/td><\/tr>
TStE 315, EStE 315<\/td>50-24,50-15,50-57(3)<\/td><\/tr>
TStE 355, EStE 355<\/td>50-24,50-15,50-57(3)<\/td><\/tr>
TStE 380, EStE 380<\/td>50-24,50-15,50-57(3)<\/td><\/tr>
TStE 420, EStE 420<\/td>50-24,50-15,50-57(3)<\/td><\/tr>
TStE 460, EStE 460<\/td>50-57<\/td><\/tr>
TStE 500, EStE 500<\/td>50-57(1),50-21(2)<\/td><\/tr>
Creep resistant steels<\/td>With wire electrode<\/td><\/tr>
15 Mo3<\/td>50-14,50-17<\/td><\/tr>
13 Cr Mo44<\/td>50-22<\/td><\/tr>
10 Cr Mo9 10<\/td>50-23<\/td><\/tr>
Cryogenic Steels<\/td>With wire electrode<\/td><\/tr>
10 Ni 14(4)<\/td>50-25<\/td><\/tr>
TTSt 35 N, TTSt 35 V<\/td>50-25<\/td><\/tr>
TTSt 41 N, TTSt 41 V<\/td>50-25<\/td><\/tr>
Non-ageing steels<\/td>–<\/td><\/tr>
ASt 35, ASt 41<\/td>50-15<\/td><\/tr>
ASt 45, ASt 52<\/td>50-15<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

1)only thinner plates
2)Also for stress-relived condition
3)Observe minimum temperature of -40\u00b0C
4)Lowest service temperature -80\u00b0C
Approval<\/strong> : LRS<\/p>\n","protected":false},"excerpt":{"rendered":"

Type\/ Characteristics: Agglomerated fluoride-basic type flux, preferably used for high strength fine grain structural steels, as well as cryogenic steels and steels resistant to ageing. Owning its neutral behavior as regards pick-up and burn-out of silicon and manganese, wire electrodes having higher percentages of Si and Mn (e.g. 50-27, 50-57) should be used.AMA-OP121TT is particularly […]<\/p>\n","protected":false},"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"inline_featured_image":false},"product_brand":[],"product_cat":[86,87],"product_tag":[],"class_list":["post-1889","product","type-product","status-publish","product_cat-saw-fluxes","product_cat-fluxes-for-submerged-arc-welding-of-general-struct","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/ama-co.com\/en\/wp-json\/wp\/v2\/product\/1889","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ama-co.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ama-co.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/ama-co.com\/en\/wp-json\/wp\/v2\/comments?post=1889"}],"wp:attachment":[{"href":"https:\/\/ama-co.com\/en\/wp-json\/wp\/v2\/media?parent=1889"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ama-co.com\/en\/wp-json\/wp\/v2\/product_brand?post=1889"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ama-co.com\/en\/wp-json\/wp\/v2\/product_cat?post=1889"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ama-co.com\/en\/wp-json\/wp\/v2\/product_tag?post=1889"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}