TC4 (Ti-6Al-4V) α + β titanium alloy
Original Title TC4 (Ti-6Al-4V) α + β Titanium Alloy TC4 is the most widely used titanium alloy accounting for almost half of all titanium alloys TC4 is a kind of α + β titanium alloy and its microstructure is composed of α and β solid solution at room temperature Relevant standards GB/T 36201-2007 Designation and chemical composition of titanium and titanium alloys GB/T 2965-2007 Titanium ti6al4v and titanium alloy bars GB/T 3621-2007 Titanium and titanium alloy sheet GB/T 3622-2012 Titanium and titanium alloy strip and foil GB/T 3623-2007 Titanium and titanium alloy wire GB/T 3624-2010 Titanium and titanium alloy seamless tubes GB/T 16598-2013 Titanium and Titanium titanium plate gr7 Alloy Cakes and Rings GB/T 25137-2010 Titanium and titanium alloy forgings GB/T 30562-2014 Titanium and titanium alloy welding wire

Comparison of countries China GB/T 36201-2007 TC4 (nominal chemical composition Ti-6Al-4V) America ASTM B348-2013 Grade 5（GR5） UNS R56400 Japan JIS H 46502012 Class 60 TAB6400H Germany DIN 17851 (1990) TiAl6V4，37165 Brand number TC4 R56400 60 categories 37165 Ti Margin Remainder Remnants Rest Al 55~675 55~675 55~675 55~675 V 34~45 35~45 35~45 35~45 Fe ≤030 ≤040 ≤040 ≤030 C ≤008 ≤008 ≤0 ti6al4v eli 08 ≤008 N ≤005 ≤005 ≤005 ≤005 H ≤0015 ≤0015 ≤0015 ≤0015 O ≤020 ≤020 ≤020 ≤020 Its He Single ≤010 ≤010 ≤010 Sum ≤040 ≤040 ≤040 ≤040 Mechanical properties (GB/T 2965-2007) Heat treatment system 700 ~ 800 ℃ 1H ~ 3H air cooling Mechanical properties Tensile strength Rm/MPa ≥895 Specified non-proportional extension strength Rp02/MPa ≥825 Elongation after fracture A/% ≥10 Reduction of area Z/% ≥25 TC4 has the advantages of both α and β titanium alloys such as good plasticity good hot strength (can work at 400 ℃ for a long time) strong seawater corrosion resistance simple production process welding cold and hot forming and can be strengthened by quenching and aging titanium round bar treatment It is mainly used in aircraft compressor disk and blade ship pressure shell large size forgings die forgings and so on The TC4 also has good low temperature performance It still has good toughness below -196 ℃ and is used to manufacture low temperature titanium sheet grade 5 and high pressure vessels such as liquid hydrogen fuel tanks for rockets and missiles Return to Sohu to see more Responsible Editor yunchtitanium.com