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TECHNICAL  CHARACTERISTICS

Specification	EN10305-2
Grade & Condition	E355+SR
Y.S	≥540N/mm²
T.S	≥640N/mm²
Elongation %	≥15%
Impact value	≥27J（-20℃，10*10*55）
ID Hardness	HB180-210
ID Roughness	≤1.2μm
OD Roughness	≤3.2μm
Concentricity	≤2%
Ovality	≤0.2mm
Straightness	≤0.3mm/m
N.D.T	ET+UT whole tube eddy current and ultrasonic joint inspection

OD SUITABLE FOR MACHING(CNC TURNING AND CENTRELESS GRINDING)AND WELDING
ID MACHINING NOT REQUIRED
DIMENSIONS AND TOLERANCE ON BASED ON COSTOMER DRAWINGS