NO AMS NUMBER COULD BE CONFIRMED \u2014 no AMS number was found for 316Ti; ASTM and EN are used directly. ASTM: A240 \/ SA-240 (plate, sheet, strip, S31635) \u00b7 A479 \/ SA-479 (bar and shapes, S31635) \u00b7 A182 \/ SA-182 (forged flanges and fittings, F316Ti) \u00b7 A484 (general requirements). EN: 1.4571 \u00b7 10088-2 \u00b7 10088-3 \u00b7 10028-7 \u00b7 10216-5 \u00b7 10222-5 \u00b7 ISO 15510.
THERE IS NO AMS NUMBER FOR 316Ti (ams_yok). None of the producer bulletins searched \u2014 ATI, Elgiloy, Fine Tubes, Alleima, Outokumpu, thyssenkrupp, Aalco, Metalcor and Abrams among them \u2014 gives an AMS number for 316Ti;<\/span><\/div>\n<\/div>\n\n
Advantage<\/div>\n
Of the three grades this is the only one that gives the strength minimum of 316 and the sensitization resistance of 316L AT THE SAME TIME. In ASTM A240 the tensile minimum of 316Ti is 515 MPa and the yield minimum 205 MPa; those are THE SAME as 316 and 30 and 35 MPa above 316L.<\/div>\n<\/div>\n
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Welding<\/div>\n
Filler metal: American Boiler Company states that NIOBIUM-STABILIZED fillers (318\/347 type) should be used for welding 316Ti where elevated temperature weld strength matters, and that a 316L filler is enough for matching corrosion resistance.<\/div>\n<\/div>\n
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Limits<\/div>\n
CHLORIDE STRESS CORROSION CRACKING: titanium DOES NOT reduce this risk. Outokumpu states that the Supra range austenitics (316L and 316Ti among them) are susceptible to chloride-induced stress corrosion cracking and that the risk arises when tensile stress, temperatures above about 50 \u00b0C and chlorides come together;<\/div>\n<\/div>\n