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Gangsteel is specialized in supplying RINA extra high strength steel plate in RINA Grade D690. For more information of Grade D690 steel plate, please check them in following:
RI/D690 extra high Strength Chemical Composition in Tempering and Quenching
| Element | RINA D690 Max % | Element | RINA D690 Max % | 
| C | 0.20 | Ni | 0.40 | 
| Mn | 1.70 | Mo | 0.08 | 
| Si | 0.10-0.55 | Al | 0.020 min | 
| S | 0.030 | Nb | 0.20-0.05 | 
| P | 0.030 | V | 0.05-0.10 | 
| Cu | 0.35 | Ti | 0.0007-0.05 | 
| Cr | 0.20 | N | 
 | 
	Crack Sensitivity:  Pcm = (C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B)%
	Carbon Equivalent:  Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%
RI/D690 extra high strength property in Tempering and Quenching
| Grade | Thickness | Yield Strength | Tensile Strength | Elongation | Impact Energy | 
| (mm) | MPa (min) | MPa | % (min) | (KV J) (min) | |
| 
 | 
 | 
 | 
 | -20 degree | |
| 8-260 | 690 | 770-940 | 14 | 46J | 
Note: the impact energy under less 150mm thickness; longitudinal min impact energy
Boiler steel plates| Alloy steel plates| High strength plate| Carbon steel plate| Stainless steel plate
| Equivalent steel grade of RI/D690 | |||||||
If you need more stock steel plates in shipbuilding steel plate, please click warehouse sizes.
The related steel grade: RI/A690, RI/E690, RI/F690
Gangsteel is specialized in supplying RINA normal strength steel plate in RINA Grade A.RI/A,RINA GRADE A,RI-A
Gangsteel is specialized in supplying RINA high strength steel plate in RINA Grade DH36.RI/DH36,RINA GRADE DH36
Gangsteel is specialized in supplying RINA high strength steel plate in RINA Grade AH36.RI/AH36,RINA GRADE AH36
Gangsteel is specialized in supplying RINA high strength steel plate in RINA Grade FH32.