Steel Tube Handbook - 2018

54 Seamless steel tubes for welding and threading EN 10224 Steel pipes, joints and fittings for the conveyance of aqueous liqiuds including potable water. EN 10255 Non-alloy steel tubes suitable for welding or threading. DIN 2440 Steel tubes; medium-weight suitable for screwing. DIN 2441 Steel tubes; heavy-weight suitable for screwing. DIN 2442 Threaded tubes made to quality specifications. DIN 2460 Steel tubes for waterworks services. NFA 49-115 Hot finished seamless tubes suitable for threading. Dimensions. TDC. UNI 6363 Seamless and welded steel tubes for waterworks services. UNI 8863 Seamless non-alloy steel tubes suitable for threading in accordance with UNI ISO 7/1. BS 1387 Screwed and socketed steel tubes. STN 425710 Steel tubes suitable for threading. Medium. STN 425711 Steel tubes suitable for threading. Heavy. GOST 3262 Water and gas supply steel pipes. ASTM A53 Pipe, steel, black and hot-dipped, zinc-coated, welded and seamless. TDC. ASTM A795 Black and hot-dipped zinc-coated (galvanized) welded and seamless steel pipe for fire protection use. PN-H 74200 Steel tubes for gas list threading. JIS G 3452 Carbon steel pipes for ordinary piping (Steel SGP). ISO 65 Tubes for screwing List of dimensional standards and technical delivery conditions standards Stan- dards Dimensions Dimensional standards Dimensional range Tolerance D Tolerance T Lengths Straightness Tube ends EN 10224 Table 5/Page 40 (Type S D 26,9-139,7) ±1 % min ±0,5 mm is valid for welded pipe too at D = 219,1 mm (method EW and BW) ±12,5 % (D ≤ 219,1 mm) min ±0,4 mm is valid for welded pipe too (method EW and BW) • random • fixed • exact: L = 2–6 m 0 +10 mm  L = 6–12 m 0 +15 mm  L > 12 m 0 + upon agreement Alloved deviation max 0,2% L • square cut ends • free from excessive burrs • beveled for T ≥ 3,2 mm, unless otherwise ordered 10255 Table 19/Page 58 See table 19 / page 58 (valid for series H and M) For Type L, L1, L2 see standard ± 1%, min ± 0,5 mm Seamless ±12,5 %Welded • series H, M Type L ±10 % • Type L1, L2 –8 % + delimted by weight • square cut ends • free from excessive burrs • plain ends (no threaded) DIN 2440 2441 –12,5 % + delimted by weight Hmotnosť ±10 % Visually straight 2442 2460 BS 1387 –8 % (light series) –10 % (medium and heavy series) NF A 49-115 (49-145) –12,5 % Weight ±10% UNI 8863 6363 –12,5 % + undetermined Weight ±10 % STN ČSN 42 5710 42 5711 See table19/ page 58 –12,5 % + undetermined Weight ±10 % • random • exact: +5 mm to section  max + 100 mm  3 mm/m, max 20 mm GOST 3262 Usual accuracy: D ≤ 40 mm –0,5/+0,4 mm D > 40 mm –1,0/+0,8 mm –15 % • random • exact: + 5 mm to section  + 10 mm to length  D ≤ 20 mm 2 mm/m D > 20 mm 1,5 mm/m PN-H 74220 74200 See table19/ page 58 • random • fixed • exact: L = 2–6 m 0 +10 mm  L = 6–12 m 0 +15 mm  ASTM ASME A53 SA-53 Table 7/Page 44 See page 18 A795 1. The tubes for threading according to standard EN 10255 are preferential delivered as hot finished 2. For technological reasons and for reasons to achieve the required dimensional tolerances are as cold drawn and normalized delivered by agreement following tubes: - all dimensions with D 10,2 / 13,5 / 17,2 mm - at type L and L1 also D 76,1/ 88,9 / 101,6 – only at type L / 114,3 mm - all dimensions at type L 2  HF production facilities to 12,7 m + 30 mm (50 mm), over 12,7 m + 100 mm