KR Grade B

KR Grade B

KR Grade B steel is a kind of high tensile strength marine steel. All of these steels have been engineered to be optimal long-lived shipbuilding steels.As with other grades of steel, they have a specific gravity of 7.8.KR Grade B Shipbuilding steel plates are mainly used for making the offshore oil drilling platform, the hull of ship building and ship repairing, the platform pipe joints and other components. All the KR Grade B shipbuilding Steel offered by JoinWin Industry can be certificated by JoinWin as per customer's request.

Key words: KR Grade B shipbuilding steel, KR Grade B Ocean steel, KR Grade B Marine steel,KR Grade B offshore engineering steel. R B shipbuilding steel, R B Ocean steel, R B Marine steel,R B offshore engineering steel,KR Grade B Z15,KR Grade B Z25,KR Grade B Z35

KR Grade B, R B chemical composition in shipbuilding steel plate, angle steel bar, bulb flat bar, L section steel bar

Grade

C max

Si max

Mn

P max

S max

Als min

R B

0.21

0.35

0.80-1.20

0.035

0.035

-

CE: C+1/6Mn ≤ 0.40%

Cu ≤ 0.35%,Ni ≤ 0.30%

KR Grade B, R B Mechanical Property in shipbuilding steel plate, angle steel bar, bulb flat bar, L section steel bar

Grade

Rm

(MPa)

Re(MPa) min

A% min

Akv/J min

E.T °C

Thickness (mm)

≤ 50

>50-70

>70-100

L

C

L

C

L

C

R B

400-520

235

22

0

27

20

34

24

41

27

KR Grade B, R B shipbuilding steel plate, angle steel bar, bulb flat bar, L section steel bar delivery condition :

Grade

category

The thickness of steel

 
 

≤ 12

>12.5-25

>25-35

>35-50

>50-100

R B

Plate/sheet

A(-)

A(50)

N(50),TM(5)

CR(25)

AR*(25)

Profile steel

-

JW steel keeps more than 10,000 tons hot rolled and cold rolled KR Grade B, R B shipbuilding steel in stock each month. We can meet our customer’s any quantity request. Based on these stock source, our advantage industry spread into steel process like : cutting ( any size and any shape ) drilling, welding, milling, machining and steel structure.

We also have a high quality logistics team who make sure the fast delivery time and shipment. Anyway, if you want to find KR Grade B, R B shipbuilding steel plate/sheet/angle bar/bulb flat bar/ L section steel bar supplier, KR Grade B, R B shipbuilding steel plate/sheet/angle bar/bulb flat bar/ L section steel bar manufacturer, KR Grade B, R B shipbuilding steel plate/sheet/angle bar/bulb flat bar/ L section steel bar exporter, please contact JW steel’s sales team. We will give you the KR Grade B, R B shipbuilding steel plate/sheet/angle bar/bulb flat bar/ L section steel bar competitive price, KR Grade B, R B shipbuilding steel plate/sheet/angle bar/bulb flat bar/ L section steel bar good quality and best service from us.

Related Link: ABS Grade BGL Grade BDNV Grade BBV Grade B,NK Grade B, RINA Grade B, LR Grade B,KR certification shipbuilding steel

AB/ B

NV/B

LR/B

GL-B

K B

BV/B

RI/B