Shanghai Katalor Enterprises Co., Ltd
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RINA DH40 Shipbuilding Steel

RINA DH40 Shipbuilding Steel

RINA DH40 grade steel is a kind of high strength ship steel for hull structure plate. Katalor Industry has over 10,000 tons hot rolled RINA DH40 steel, RINA DH40 bulb flats, RINA DH40 shipbuilding steel plates in stock.
E-Mail: [email protected]
Skype: shanghai.katalor
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RINA DH40 ship steel plates are mainly used to contribute hull of ships and the cranes of break bulker and vessels in low temperature oceans. At present, several major steel companies in China have produced, and our company also can produce marine steel products of different national standards according to user needs.

RINA DH40 shipbuilding steel Equivalent

ABS

BV

CCS

DNV

GL

KR

LR

NK

RINA

ABS DH40

BV DH40

CCS DH40

DNV DH40

GL DH40

KR DH40

LR DH40

NK DH40

RINA DH40

RINA DH40 Shipbuilding Steel Chemical Requirements (%)

C max

Mn

Si

P max

S max

Al max.

Cb

V

Ti max.

Cu max.

Cr max.

Ni max.

Mo max.

0.18

0.90-1.60

0.10-0.50

0.035

0.035

0.015

0.02-0.05

0.05-0.10

0.02

0.35

0.20

0.40

0.08

RINA DH40 Shipbuilding Steel Tensile Requirements

Yield Strength (MPa) min.

Tensile Strength (MPa)

Elongation in 8 in. min. %

Elongation in 2 in. min. %

390

510-650

19

22

RINA DH40 Shipbuilding Steel Introduction

1. The general hull structural steel grades A, B, D, and E are distinguished according to the impact temperature of the steel. The impact values of all grades of steel are the same, not according to the strength grade.
Grade A steel is the impact force subjected to normal temperature (20 ° C).
Grade B steel is the impact force at 0 °C.
Grade D steel is the impact force at -20 °C.
Grade E steel is the impact force at -40 °C.
High-strength hull structural steel can be further divided into AH32, DH32, EH32, AH36, DH36, EH36

2, high-intensity hull structure steel preheating requirements: all AH, DH, EH plate thickness greater than 30mm angle, butt joints, preheating to 120 ~ 150 °C before welding.

3, the thickness of the plate ≤ 30mm, the ambient temperature is below 5°C, preheated to 75 °C; ambient temperature below 0 °C, preheated to 75 ~ 100 °C.

4, TMCP steel (made in Japan), and it is cannot preheat before welding.

We have our own processing factory and the pre- treatment factory, pre-treatment for shipbuilding steel, Surface pretreatment line technical parameters on RINA DH40 steel plates and profile steel. And we can also make the customers enjoy our other pre-treatment services, like cutting, welding, drilling holes by the lowest cost price. Besides, We are a professional RINA DH40 Shipbuilding Steel exporter and stockist in china. Any need please feel free to contact us.


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CONTACT US

No limited to time and space, you can call for our online-service personnel for consultation, or fill in the table below for an enquiry. Your message will be promptly resolved.

Tel: 0086-18317160019
E-Mail: [email protected]
Skype: shanghai.katalor
Address: Address:Unit 6,lane 2500,xiupu Road,Kangqiao Industrial Area,Pudong New District,Shanghai