【最新】美国钛合金分类及应用.docx

Alloy GuideA Guide to Commercial Titanium AlloysAlloy Composition (ASTM Grade) [Common Name] Alloy DescriptionAvailable Product FormsTypical ApplicationsCommercially Pure (Unalloyed) Ti GradesTi Grade 1 Lower strength, softest, unalloyed Ti grade with highest ductility, cold formability, and impact toughness, with excellent resistance to mildly reducing to highly oxidizing media with or without chlorides and high weldability.Ingot/Bloom, Bar*, Billet, Plate, Strip, Welded Tubing, Welded Pipe, Wire* AC, CG, CP, DS, HE, HR, FP, MI, PB, NS Ti Grade 2 Moderate strength unalloyed Ti with excellent weldability, cold formability, and fabricability; "workhorse" and "garden variety" Ti grade for industrial service with excellent resistance to mildly reducing to highly oxidizing media with or without chlorides. Approved for sour service use under the NACE MR-01-75 Standard.Ingot/Bloom, Bar*, Billet, Plate, Strip, Welded Tubing, Welded Pipe, Seamless Tubing*, Wire*, Foil* AC, AD, AP, AR, CG, CP, DS, FP, HE HR, MI, NS, PB, PP, OP, SRTi Grade 3 Slightly stronger version of Gr. 2 Ti with similar corrosion resistance with good Ingot/Bloom, Bar*, Billet, Plate, CP, NS, PPweldability and reasonable cold formability/ductility. Strip, Welded Tubing, Welded PipeTi Grade 4 Much stronger, high interstitial version of Grades 2 and 3 Ti with reasonable weldability, and reduced ductility and cold-formability.Ingot/Bloom, Bar*, Billet, Plate, Strip AC, AD, CP Commercially Pure Grades Modified with Pd or Ru Ti-0.15Pd [Ti-Pd] (Grade 7) Most resistant Ti alloy to corrosion in reducing acids and localized attack in hot halide media, with physical, mechanical, formability properties equivalent to Gr. 2 Ti, and excellent weldability/fabricability.Ingot/Bloom, Bar*, Billet, Plate, Strip, Tubing, Welded Pipe, Wire* AC, AP, CP, DS, HE, PBTi-0.15Pd (Grade 11) Most resistant Ti alloy to corrosion in reducing acids and localized attack in hot halide media, with physical, mechanical, formability properties equivalent to Gr. 1 Ti (soft grade) and excellent weldability.Ingot/Bloom, Bar*, Billet, Plate, Strip, Welded Tubing, Welded Pipe, Wire*AC, CP, DS, HE, HR, PBTi-0.05Pd (Grade 16) Lower cost, leaner Pd version of Ti Gr. 7 with equivalent physical/mechanical properties, and similar corrosion resistance. Tubing, Ingot/Bloom, Bar*, Billet, Plate, Strip, Welded Tubing, AC, AP, CP, DS, HE, HR, PBWelded Pipe Welded Pipe, Wire* Ti-0.05Pd (Grade 17) Lower cost, leaner Pd version of Ti Gr. 11 with equivalent physical/mechanical properties and fabricability (soft grade) and similar corrosion resistance. Tubing, Welded PipeIngot/Bloom, Bar*, Billet, Plate, Strip, Welded Tubing, Welded Pipe, Wire* AC, CP, DS, HE, HR, PB Ti-0.1Ru[TiRu-26®] (Grade 26)Lower cost, Ru-containing alternative for Ti Gr. 7 with equivalent physical/mechanical properties and fabricability and similar corrosion resistance. Tubing, Welded PipeIngot/Bloom, Bar*, Billet, Plate, Strip, Welded Tubing, Welded Pipe, Wire*AC, AP, CP, DS, HE, HR, PB Ti-0.1Ru[TiRu-27®] (Grade 27) Lower cost, Ru-containing alternative for Ti Gr. 11 with equivalent physical/mechanical properties (soft grade) and fabricability and similar corrosion resistance.Ingot/Bloom, Bar*, Billet, Plate, Strip, Welded Tubing, Welded PipeAC, CP, DS, HE, HR, PBAlpha and Near-Alpha AlloysTi-0.3Mo-0.8Ni [Ti-12] (Grade 12) Highly weldable and fabricable Ti alloy offering improved strength and pressure code design allowables, hot brine crevice corrosion, and reducing acid resistance compared to Ti Grades 1, 2, Ingot/Bloom, Billet, Welded Pipe, Plate, Strip, Welded Tubing, Seamless Pipe, Wire* CP, DS, GB, HE, HR, OP and 3. Approved for sour service use under the NACE MR-01-75 Standard.Ti-3Al-2.5V[Ti-3-2.5](Grade 9) Medium strength, non-ageable Ti alloy offering highest strength and design allowables under the pressure vessel code, with good weldability and cold fabricability for mildly reducing to mildly oxidizing media.Ingot/Bloom, Billet, Welded Pipe, Plate, Strip, Welded Tubing, Foil* Seamless Tubing*, Wire* AD, CG, NS, SRTi-3Al-2.5V-Pd[Ti-3-2.5-Pd] (Grade 18) Pd-enhanced version of Ti-3Al-2.5V with equivalent physical and mechanical properties and fabricability, offering elevated resistance to dilute reducing acids and crevice corrosion in hot halide (brine) media.Ingot/Bloom, Billet, Welded Pipe, Plate, Strip, Welded Tubing, Seamless Pipe CP, GB, HE, OP, PDTi-3Al-2.5V-Ru [Ti-3-2.5-Ru] (Grade 28) Ru-enhanced version of Ti-3Al-2.5V with equivalent physical and mechanical properties and fabricability, offering elevated resistance to dilute reducing acids and crevice corrosion in hot halide (brine) media. Approved for sour service use under the NACE MR-01-75 Standard. Ingot/Bloom, Billet, Welded Pipe, Plate, Strip, Welded Tubing, Seamless Pipe, Wire*CP, GB, HE, OP, PD Ti-5Al-2.5Sn[Ti-5-2.5](Grade 6) Weldable, non-ageable, high-strength alloy offering good high temperature stability, strength, oxidation and cr。