+86 371 55057610 
inquiry@xsteelplate.com
■ Overview
The higher steel grade KR Grade DH40,KR DH40,KR DH40 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,steel plate KR Grade DH40 can bear the higher strength and used to some steel structure parts in ships.Normalised heat treatment and low temperature impacting test shall be done for KR Grade DH40 shipbuilding steel plate.
■ Full Data
Technical Requirements & Additional Services for KR DH40 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
♦ 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
■ Techicals
►Mechnical property for KR Grade DH40 shipbuilding structual steel:
| Yield strength (≥Mpa) | Tensile strength (Mpa) | Elongation in ≥,% | |
| 390 | 510-650 | 200mm | 50mm |
| 19 | 22 | ||
►Chemical composition for KR Grade DH40 ship steel (Heat Analysis Max%)
| Main chemical elements composition of KR Grade DH40 | ||||||
| C | Si | Mn | P | S | Al (acid) min. | Nb |
| 0.18 | 0.10-0.50 | 0.90-1.60 | 0.035 | 0.035 | 0.015 | 0.02-0.05 |
| V | Ti | Cu | Cr | Ni | Mo | |
| 0.05-0.10 | 0.02 | 0.35 | 0.20 | 0.40 | 0.08 | |
Tel：+86 371 55057610 
Fax： +86 371 5505 7611