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HI steel

DIN HI steel is a European specified steel for use in pressure vessels, boilers and heat exchangers.

The composition of DIN HI steel makes it ideal for applications where elevated working temperatures are the norm and the material is used by fabricators throughout the oil, gas and petrochemical industry.

DIN HI steel is a normalized carbon alloy steel and is available ex-stock from our warehouse with mill certification and stamping.

 
HI DIN17155
Material#.1.0111
Comparison of steel grades
EN10120 P245NB
NFA36-211 BS1
UNI7355 FeE24KR
BS5045 Type A
UNE36129 AE 235 KR
JIS G3116 SG 255

Chemical analysis -% by  mass*

Grade C
max
Si
max
Mn.
max
P
max
S
max
N
max
AL
min
Nb max Ti
max
HI 0.16 0.25 0.3 0.025 0.015 0.009 0.02 0.05 0.03

Mechanical properties

Grades Yield Strength Tensile Fracture
 

HI


 
ReH[N/mm2] Strength Elongation
transv.min. Rm[N/mm2]transv. [%]transv. min.
    thickness Total elongation A1
    < 3 mm ≥ 26 %
245 360 - 450 ≥ 3 mm ≥ 34 %