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A255Gr.D steel plate

A255Gr.D steel plate

ASTM-SAE A255Gr.D steel plate for Fine-grain structural steels, normalised rolled steel
A255Gr.D steel plate, under ASTM-SAE standard A255Gr.D steel plate, under ASTM-SAE standard, we can regard A255Gr.D steel plate as Fine-grain structural steels, normalised rolled steel A255Gr.Dsteel plate is one mainly of Fine-grain structural steels, normalised rolled steel,A255Gr.D steel plate is under ASTM-SAE standard equivalent to EN: A255Gr.D,which with a minimum elongation of 19%.

A255Gr.D
ASTM-SAE
MATERIAL#1.8902
Comparison of steel grades
UNE36081 AE420KG/AE420KW
EN 10111 S420N
NFA 36-201 E420R
BS4036 -
DIN17102 StE420

A255Gr.D steel Chemical composition


Chemical elements
C
max
Si
max
Mn
 
P
max
S
max.
Cu
max
Cr
max
Ni
max
V
max
Nb
max
Al
min
%,by mass 0.20 0.60 1.00-1.70 0.030 0.025 0.55 0.30 0.50 0.12 0.05 0.02

A255Gr.D steel Mechanical properties


thickness
Yield StrengthReH[N/mm2]
transv.min.

TensileStrengthRm

[N/mm2]transv.

Fracture Elongation[%]transv. min. Notch Impact
Energy1)Ch Vcomplete samplelongitud. min [J]
t≤ 16mm
t >16mm
420
400
             +20   KV 31J
           0   KV 27J
         -10    KV 24J
         -20    KV 20J
         -40    -
         -50    -
   t < 3mm
  t≥ 3mm
  520-680  
Up to 1.5mm
1.51-2.00mm
2.01-2.50mm
2.51-2.99mm
 ≥ 3mm
    19

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