Steel Tube Handbook - 2018

98 Allowed sizes and shapes tolerances of butt welding elbows Table 42 Parameter Standards PN ŽP 42 5760 DIN 2605, DIN 2609 EN 10 253–2 ASME (ANSI) B 16.9 in mm Outside diameter ±1,25 % min. ±0,5 mm ±1 % allowed ±0,5 mm ±1 % min. ±0,5 mm 1/2–2 1/2 –0,03 +0,06 21,3–73,0 ±1 3–3 1/2 ±0,06 88,9–101,6 ±1 4 ±0,06 114,3 –1 +2 5 – 8 –0,06 +0,09 141,3–219,1 –1 +3 10–18 –0,12 +0,16 273–457 –3 +4 20–24 –0,19 +0,25 508–610 –5 +6 26–30 –0,19 +0,25 660–762 –5 +7 Inside diameter min. 80 % of theoretical inside diameter (= D – 2T) d min = 0,8 (D – 2T) 1/2–2 1/2 ±0,03 21,3–73,0 ±0,8 3–3 1/2 ±0,06 88,9–101,6 ±1,6 4 ±0,06 114,3 ±1,6 5–8 ±0,06 141,3–219,1 ±1,6 10–18 ±0,12 273–457 ±3,2 20–30 ±0,19 508–762 ±4,8 Ovality D > 200 2% (4%) 1,5% Wall thickness –15 % +12,5 % (±17,5 %) –12,50 % +15 % D ≤ 610 mm T ≤ 4 mm –12,5 % +20 % T > 4 mm –12,5% +15% Wall thickness > 87,5 % of nominal wall thickness (–12,5%) b (K) 31,8–76,1 ±2,5 mm DN 15 – 65 ±2,5 mm ±7 mm 1/2–24 ±0,25 21,3–600 ±7 82,5–114,3 ±3,0 mm DN 80–100 ±3,0 mm 133,0–219,1 ±3,5 mm DN 125–200 ±3,5 mm D > 220 ±4,0 mm DN > 250 ±4,0 mm 2 b 31,8–76,1 ±8 mm DN 15–65 ±8 mm ±14 mm 1/2–8 ±0,25 21,3–200 ±7 82,5–114,3 ±9 mm DN 80–100 ±9 mm 133,0–219,1 ±10 mm DN 125–200 ±10 mm D > 220 ±14 mm DN > 250–450 ±14 mm 10–24 ±0,38 273–610 ±10 Q/P ±4° ±1% of outside diameter or min ±1 mm ±1% of outside diameter or min ±1 mm For EN 10224 Q max 1,6 mm 1/2–4 0,03/0,06 21,3–114,3 1/ 2 5–8 0,06/0,12 141,3–219,1 2/4 10–12 0,09/0,19 273–323,8 3/5 14–16 0,09/0,25 335,6–406,4 3/7 18–24 0,12/0,38 457–610 4/10 26–30 0,19/0,38 660–762 5/10