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NBNA21201 A 690
NBNA21201 A 690-1,2 steel plate/sheet,NBNA21201 A 690-1,2 steel plate/sheet, under NBNA21201 standard, we can regard A 690-1,2 steel plate/sheet for general Construction steels.NBNA21201 A 690-1,2 steel plate/sheet is for general Construction steels. The followings are the chemical composition and the mechanical properties of EN A 690-1,2 steel. A 690-1,2 steel is according to NBNA21201 standard and it is equivalent to EN:Fe690-2,DIN17100:St70-2,NFA: A70-2 and NBNA21201:E360 steel grades.
Equivalent grade :
NBNA21201 A 690-1,2 steel plate/sheet is in NBNA21201 standard. The comparison of steel grades is: NBNA21201 :1990 A 690-1,,DIN17100 ST60-2, NFA 35-501 A60-2,BS1449,UNI7070 FE 590
A 690-1,2 |
Comparison of steel grades |
|
NBNA21201:1990 |
A 690-1,2 |
|
DIN17100 |
ST70-2 |
|
NFA 35-501 |
A70-2 |
|
BS1449 |
- |
|
UNI7070 |
FE 690 |
A 690-1,2 steel Chemical analysis -% by mass*
Main chemical composition in NBNA21201 A 690-1,2 steel : Phosphorus max 0.045, Silicon max 0.045,please refer to the flowing table:
Chemical elements |
C≤ 16mm |
C>16mm |
Si |
Mn |
P |
S |
N |
A 690-1,2 |
- |
- |
- |
- |
0.045 |
0.045 |
0.012 |
A 690-1,2 steel Mechanical properties
NBNA21201 A 690-1,2 is general Construction steels, The different thickness with different yield strength, tensile strength and fracture elongation. More detailed information about NBNA21201 A 690-1,2 steel Mechanical Properties , please refer to the following table:
thickness |
Yield Strength ReH [N/mm2] |
Tensile Strength Rm [N/mm2] transv. |
Fracture Elongation[%]transv. min. |
Notch Impact |
t≤ 16mm |
360 |
|
|
- |
t < 3mm |
|
690-900 |
|
|
Up to 1.5mm |
|
|
4 |
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