NK Grade FH40,NK FH40

The higher steel grade NK Grade FH40 shipbuilding steel plate are used abnormally owning to its high cost and substitutability.With the minimum yield point at 390 Mpa,and tensile strength within 510-650 Mpa,NK Grade FH40,NK FH40,NK FH40 steel plate can bear the higher strength and used to some steel structure parts in ships.

Technical Requirements & Additional Services for NK FH40 steel plate:
♦ High tension test
♦ Z-Test (Z15,Z25,Z35)
♦ Low temperature impacting test
♦ Ultrasonic test under ASTM A435,A577,A578
♦ Cetificated by ABS,LR,GL,BV,DNV,KR,NK,CCS,RINA
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Shot blasting and Painting,Cutting and welding as per end user’s demands
 

►Mechnical property for NK Grade FH40 shipbuilding structual steel:

Yield strength (≥Mpa)	Tensile strength (Mpa)	Elongation in ≥,%
390	510-650	200mm	50mm
		19	22

►Chemical composition for NK Grade FH40 ship steel (Heat Analysis Max%)

Main chemical elements composition of NK Grade FH40
C	Si	Mn	P	S	Al (acid) min.	Nb
0.16	0.50	0.90-1.60	0.025	0.025	0.015	0.02-0.05
V	Ti	Cu	Cr	Ni	Mo	N
0.03-0.10	0.02	0.35	0.20	0.80	0.08	0.009