RINA-A Italian Bureau of Shipping Ship Plate RINA-A Ship Plate Specifications RINAA Marine Steel Pla

RINA-A Italian Bureau of Shipping Ship Plate RINA-A Ship Plate Specifications RINAA Marine Steel Pla

RINA-A is a certified ship plate certified by the Italian classification society, RINA-A ship plate is suitable for the manufacture of ship hull structures, docks, oil production platforms, marine transmission pipelines, coastal power plants, dock facilities and other structural parts in ocean, coastal and inland navigation areas.

General strength ship plates: A, B, D, E. High-strength shipboard: AH32, AH36, AH40, DH32, DH36, DH40, EH32, EH36, EH40, FH36 and ultra-high-strength shipboard DH460, EH460, EH550, EH690, etc. Thickness: 3-80mm, width 1500-4000mm, length 4000-19000mm. Certified by the world's nine major classification societies (CCS, ABS, VL, LR, BV, NK, KR, RINA, RS).

Rina - Italian Classification Society

RINA is a classification society founded in 1861 in Genoa, Italy. It is one of the world's oldest organizations providing ship classification, certification, maintenance and technical services, providing technical assistance to customers in the design, construction, management and measurement of ships, cruise ships, yachts and offshore structures. It outlines its goal to make significant strides in the commercial maritime industry by assisting customers to achieve better operational standards in terms of asset safety and productivity.

It has about 200 administrative offices in 70 countries and 4000 specialists. RINA expands its business to include other sectors, such as industrial, power and power. It focuses on providing green and environmentally sustainable solutions to its customers.

In the marine sector, RINA disseminates sustainable technologies with a focus on reducing carbon emissions, which is reflected in society's classification rules. Finally, the community has been authorized by 116 flag State governments to carry out surveys within their territory.

Mechanical properties and chemical composition of RINA-A ship plates

General strength: mechanical properties and chemical composition of hull structural steel

Steel grade

Yield point

σs(MPa) is not less than

tensile strength

σb(MPa)

Elongation σ%

Not less than

carbon

C

manganese

Mn

silicon

Si

sulfur

S

phosphorus

P

A

235

400-520

22

≤0.21

≥2.5C

≤0.5

≤0.035

≤0.035

B

≤0.21

≥0.80

≤0.35

D

≤0.21

≥0.60

≤0.35

E

≤0.18

≥0.70

≤0.35

Hull structural steel according to the quality of A, B, C, D four grades of the plate A, B grade steel plate belong to the general strength plate, the chemical composition of Mn content is very different, there is no other gap in mechanical properties, yield and tensile strength are the same, the difference is the experimental temperature of impact energy, grade A is 20 degrees, grade B is 0 degrees. Obviously, the B class is relatively better.