Silver Tubes is one of the pioneer manufacturing house and suppliers of Alloy 28 Tubes, which is originally developed for its use in the manufacture of phosphoric acid. Alloy 28 Tubes is especially used for heat exchangers in the concentration unit, where corrosive conditions are at their worst. Alloy 28 Seamless Tubes has superior resistance to creep rupture compared to Alloy 800. Alloy 28 Welded Tubes has the same chemical makeup but for the differences in carbon, aluminium and titanium quantities. Phosphoric acid, manufactured by the wet method, contains varying concentrations of impurities derived from Alloy 28 EFW Tubes. The higher strength of Alloy 28 Seamless Tubes results from close control of carbon, aluminium and titanium contents in conjunction with a high temp anneal. Alloy 28 ERW Tubes is nickel-iron-chromium alloys with good strength and excellent resistance to oxidation and carburization in high-temperature exposure.
Alloy 28 Welded Tubes has further modifications to the combined titanium and aluminium levels (0.85 to 1.2 %) to ensure optimum high temperature properties. Alloy 28 ERW Tubes offer good resistance in the variety of acidic and sulfur containing media. The blend of mechanical and thermal processing enables Alloy 28 EFW Tubes to tolerate higher stresses than those of traditional alloys. Laboratory tests carried out in wet process phosphoric acid have shown that UNS N08028 Tubesis far more resistant to impurities of this kind than other high alloy materials. We also offer these tubes at reasonable price to our clients.
|Alloy 28 Seamless Tubes||ASTM B668; EN 10216-5; SEW 400 (Feb 1991); SS 14 25 84; NFA 49-217|
|Tubing Size||1/8″NB TO 30″NB IN|
|Type||Seamless / Welded / ERW|
|Thickness||0.8mm to 6mm For Tubes|
|OD for Alloy 28 Tubes||1/2″ NB – 300″ NB|
|OD for Alloy 28 ERW Tube||1/2″ NB – 600″ NB|
|OD for Alloy 28 EFW Tube||6″ NB – 300″ NB|
|Form||Round Tubes, Square Tubes, Rectangular Tubes|
|Grade||C %||Si ≤ %||Mn ≤ %||P ≤ %||S ≤ %||Cr %||Mo %||Ni %||N %||Cu %|
|Alloy 28||≤ 0.02||0.70||2.00||0.03||0.01||26.0-28.0||3.00-4.00||30.0-32.0||≤ 0.11||0.70-1.50|
|Tensile strength Rm
|0.2% Yield strength Rp
|Hardness HB 30
|Modulus of elasticity
Alloy 28 Cold-Finish Seamless Tube exporter in India, Alloy 28 Seamless Hot Finished Seamless Tube, Alloy 28 ASTM B668 Tube Supplier in India, ASTM B668 Alloy 28 Tubing, Stainless Steel schedule 80 Tubes, UNS N08028 Welded Tubes, Alloy 28 Stainless Steel Tube Manufacturers in Mumbai, Alloy 28 Tube Gauges, Alloy 28 schedule 10 Tube, Alloy 28 schedule 40 Tube, Incoloy 28 Sch 80S Tubes, Alloy 28 Tube price list in India, Sch. 5S Seamless Alloy 28 Tube, Sch. 40S Welded Alloy 28 Tube, DIN 1.4563 Alloy Tubes, UNS N08028 EFW Tube Manufacturer in India, No 1.4563 Werkstoff No. 1.4563 ERW Tubes
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