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TUBES

HRT

Hot rolled tubes bored and honed


Chemical Content:

Hot rolled tubes EN 10297
STEEL GRADE% C% Mn% Si% P% S
E355≤ 0,20≤ 1,55≤ 0,50≤ 0,030≤ 0,035
E355K2≤ 0,200,50-1,60≤ 0,50≤ 0,030≤ 0,030


Mechanical Characteristics:
Hot rolled tubes EN 10297
 
steel grade
Yield Point (for wall thickness range)
RP 0,2 MPa
wall thickness≤ 16 mm> 16 up to 40 mm> 40 up to 65 mm> 65 up to 80 mm> 80 fino a 100 mm
E355> 355> 345> 335> 315> 295
E355K2 +N> 355> 345> 335> 315> 295
 
steel grade
U.T.S. (for wall thickness range)
Elongation  
Impact test at-20°C Joules(10x10)
Rm MPa
%
longitudinal
wall thickness≤ 16 mm> 16 up to
40 mm
> 40 up to
65 mm
> 65 up to
100 mm
  
E355510-650510-650510-650470> 21 
E355K2 +N510-650510-650510-650470> 21> 40


Standard Dimensions:
Standard dimensions hot rolled tubes EN 10297 bored and honed
 
Manufacturing standardEN 10297 (ex-DIN2448/1629)
Straightness1,0 mm/1000 mm // on request, 0,1 mm/1000 mm
Eccentricity (wall thickness tolerance)+/- 12,5% wall thickness
I.D. toleranceH8
Inside surface roughnessRa < 0,4 µm // Rt < 3 µm
Inside surface tpi> 60% a 0,17 µm of depth
Inside surface hardnessHB 150 - 200
Inside surface hardness3-10 m


Standard Dimensions:
Caratteristiche Meccaniche H tubes tolerances ara available also for downloading
in the UTILITY section »




Any I.D. may be manufactured on the base of the standard O.D. shown. Please address your inquiry to our Sales Team and tou'll be advised with the most appropiate technical solution.

Application fields