Rolling tolerances to BS EN 10279: 2000 for Parallel flange channels (PFC)

Designation Property Range Tolerance
    mm mm
Height h h≤ 65 ±1.5
65 <h≤ 200 ±2.0
200 <h≤ 400 ±3.0
400 <h ±4.0
Flange width b b≤ 50 ±1.5
50 <b≤ 100 ±2.0
100 <b≤ 125 ±2.5
125 <b ±3.0
Web thickness s s≤ 10 ±0.5
10 <s≤ 15 ±0.7
15 <s ±1.0
Flange thickness t t≤ 10 a –0.5
10 <t≤ 15 a –1.0
15 <t a –1.5
Heel radius r3 All sizes ≤ 0.3 t
  Out of squareness k + k' b≤ 100 2.0
100 <b 2.5% of b
Web flatness f h≤ 100 ±0.5
100 <h≤ 200 ±1.0
200 <h≤ 400 ±1.5
400 <h ±1.5
Straightness qxx h≤ 150 ±0.3% L
150 <h≤ 300 ±0.2% L
300 <h ±0.15% L
Straightness qyy h≤ 150 0.50% L
150 <h≤ 300 0.30% L
300 <h 0.20% L
Standard Length L All –0 +100
Alternative Standard
(by agreement)		 Length L All ±50
Mass per unit length Kg/m h≤ 125 ±6.0%
125 <h ±4.0%