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HII steel

DIN HII steel is a weldable pressure vessel and boiler steel grade used by the world's industrial fabricators.

The material, DIN HII steel is ideally suited for elevated temperature service, is commonly found in the oil & gas, petrochemical and chemical industry. This European standard grade steel has replaced the BS1501 and DIN17155 specification.

We can produce DIN HII steel accord to many foreign Standard directly---ASTM/ASME /JIS/DIN/BS/EN/AISI

Providing DIN HII steel cutting and welding service according to your drawing.
 

  HⅡ
DIN 17155
Number:1.0425
Comparision of steel grades
EN 10028-2 P265GH
NFA 36-205 A 42 CP
UNI 5869 Fe 410-1KW
BS 1501 161 Gr.400/164 Gr.400/224 Gr. 400
UNE 36087 A 42 RCI
ASTM A 414 Gr. E / A 516 Gr. 60
JIS G3115 -

Chemical Composition

Grade C. % Mn. % S. max N Cu Nb Ti. max Si. P. max AL. Cr. Mo. Ni. Vi
HII ≤0.20 0.80-1.40 0.015 ≤0.012 ≤0.30 ≤0.020 0.03 ≤0.40 0.025 ≤ 0.020 ≤0.30 ≤0.08 ≤0.30 ≤0.02

Mechnical Properties

Grade Type Thickness mm Yield strength Mpa(min) Tensile Strength  MPa Elongation % (min) Impact Energy (KVJ) (min)
-20° +20


HII
  Normalized ≤16 16>to≤40 40>to≤60 60>to≤100 100>to≤150 150>to≤250 265 410-530 22 27 34 40
255 410-530 22 27 34 40
245 410-530 22 27 34 40
215 410-530 22 27 34 40
200 400-530 22 27 34 40
185 390-530 22 27 34 40