Steel Tube Handbook - 16. edition january 2021

38 Seamless steel tubes for pressure equipments for low temperature Stan- dards Dimensions Dimensional standards Dimensional range Tolerance D Tolerance T Lengths Straightness Tube ends UNI 4991 Table 5/Page 40 Hot finished: D ≤ 51 mm ±0,5 mm D > 51 mm ±1 % Cold finished: D ≤ 25 mm ±0,25 mm D = 25–51 mm ±0,35 mm D > 51 mm ±0,75 % Weight –8 % +10 % D ≤ 323,9 mm ±12,5 % (–17,5 %) Cold finished: di ≤ 7 mm ±12 % (–14 %) min ±0,10 mm di > 7 mm ±10 % (–12 %) • random • exact with tolerances:  L ≤ 6 m 0 +10 mm L > 6 m 0 +15 mm •straightened 3mm/m •flat straightened -1,5mm/m • square cut ends • free from excessive burrs • option: with beveled ends STN ČSN 42 5715 42 5716 Table 5/Page 40 42 5715 D ≤ 219 mm ±1,25 % min ±0,5 mm D < 219 mm, T < 20 mm –15 % +12,5 % Exact length tolerances:  0 +15 mm Multiple: +5 mm on cut, max. +50 mm •straightened 3mm/m •flat straightened -1,5mm/m Marking: .+1 .+2 za RN 42 5716 D ≤ 219 mm ±1% min ±0,5 mm ±12,5 % 42 6710 42 6711 Table 23/Page 68 42 6710 ±1% min ±0,4 mm T ≤ 3 mm –10 % +15 % T > 3 mm –10 % +12 % 42 6711 see precision tubes ANSI ASME B 36.10 (pipe) Table7/Page 44 See table 8, page 45  See page 30 Vizuálne rovné • square cut ends • free from excessive burrs ASTM ASME A334 SA-334 (tube) Table 9/Page 46 See tables 10 and 11, page 47 See page 30 ANSI B 36.10 (pipe) Table 7/Page 44 See table 8, page 45 See page 28 UNI 4991 Seamless and welded steel tubes with plain ends. Dimensions. UNI 5949 Special unalloyed and alloyed steel seamless tubes with low temperature impact test. STN 42 0165 ČSN 42 0165 Sheets and pipes of ferritic – perlitic steel with guaranteed impact properties at low temperatures. TDC. STN 42 5715 ČSN 42 5715 Hot formed seamless steel tubes. Dimensions. STN 425716 ČSN 42 5716 Hot formed seamless steel tubes with smaller tolerances. Dimensions. STN 42 6710 ČSN 42 6710 Cold drawn seamless tubes with normal tolerances from steel class 11 – 16. Dimensions. STN 42 6711 ČSN 42 6711 Precision seamless steel tubes. Dimensions. ANSI/ASME B 36.10 Welded and seamless wrought steel pipe. Dimensions. ASTM A333 Seamless and welded steel pipe for low-temperature service. TDC. ASTM A334 Seamless and welded carbon and alloy-steel tubes for low-temperature service. TDC. ASTM A450 General requirements for carbon, ferritic alloy and austenitic alloy steel tubes.TDC. ASTM A524 Seamless carbon steel pipe for atmospheric and lower temperatures. TDC. ASTM A530 General requirements for specialized carbon and alloy steel pipe. TDC. ASTM A999 General requirements for alloy and stainless steel pipe. ASTM A1016 General requirements for ferritic alloy steel, austenitic alloy steel and and stainless steel tubes. ISO 9329-3 Seamless steel tubes for pressure purposes. TDC. Part 3: Non-alloy and alloy steel tubes with specified low temperature properties. List of dimensional standards and technical delivery conditions standards  HF production facilities to 12,7 m + 50 mm (30 mm), over 12,7 m + 100 mm