Share on (1600620847792):

Grade | ||||||||||
Chemical Composition ( ≤ ) | NM300 | NM360 | NM400 | NM450 | NM500 | |||||
C | 0.23 | 0.25 | 0.30 | 0.35 | 0.38 | |||||
Si | 0.70 | 0.70 | 0.70 | 0.70 | 0.70 | |||||
Mn | 1.60 | 1.60 | 1.60 | 1.60 | 1.60 | |||||
P | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | |||||
S | 0.015 | 0.015 | 0.010 | 0.010 | 0.010 | |||||
Cr | 0.70 | 0.80 | 1.0 | 1.1 | 1.2 | |||||
Ni | 0.50 | 0.50 | 0.70 | 0.80 | 1.00 | |||||
Mo | 0.40 | 0.50 | 0.50 | 0.55 | 0.65 | |||||
Thickness (mm) | ≤80 | ≤80 | ≤80 | ≤80 | ≤70 | |||||
Tensile strength (MPa) | ≥1000 | ≥1100 | ≥1200 | ≥1250 | -- | |||||
Elongation A (%) | ≥14 | ≥12 | ≥10 | ≥7 | -- | |||||
Surface Brinell hardness (HBW) | 270-330 | 330-390 | 370-430 | 420-480 | ≥470 | |||||
Grade Comparison | ||||||||||
GB | NM300,NM360,NM400,NM450,NM500 | |||||||||
SS | HARDNESS400, HARDNESS450, HARDNESS500, HARDNESS600 | |||||||||
DIN | XAR400, XAR450, XAR500, XAR600, Dillidur400, Dillidur500 | |||||||||
NBN | QUARD400, QUARD450, QUARD500 | |||||||||
NF | FORA400, FORA500, Creusabro4800, Creusabro8000 | |||||||||
JIS | JFE-EH360 , JFE - EH400 , JFE - EH500 , WEL-HARD400 , WELHARD500 | |||||||||
SFS | RAEX400, RAEX450, RAEX500 | |||||||||














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