KR B Shipbuilding Steel

Material: KR B, KR Grade B
Category: marine steel, shipbuilding steel, hull structural steel, ordinary strength shipbuilding steel, offshore steel

Shapes: plates, sheets, angles, L-shaped angle, H beams, channels, profiles, flat bulbs

KR B shipbuilding steel Plates Specification:

Thickness: 4mm to 260mm
Width: 1200mm to 4000mm
Length: 3000mm to 18000mm.

Grade KR B is a kind of ordinary strength shipbuilding steel plate which is mainly used for built hull of vessels, ship body construction, offshore platform and ocean engineering projects. Hull structure steel is often divided into ordinary strength steel, high strength shipbuilding steel and extra high-tensile strength steel.

Ordinary strength steel plates with KR certification

KR A

KR B

KR D

KR E

High strength shipbuilding steel plates with KR certification

KR AH32	KR DH32	KR EH32	KR FH32
KR AH36	KR DH36	KR EH36	KR FH36
KR AH40	KR DH40	KR EH40	KR FH40

Extra high-tensile strength steel plates with KR certification

KR AH42	KR DH42	KR EH42	KR FH42
KR AH46	KR DH46	KR EH46	KR FH46
KR AH50	KR DH50	KR EH50	KR FH50
KR AH55	KR DH55	KR EH55	KR FH55
KR AH62	KR DH62	KR EH62	KR FH62

KR B Shipbuilding Steel Chemical Requirements (%)

Grade	C max	Si max	Mn min	P max	S max	C+Mn/6
KR B	0.21	0.35	0.60	0.035	0.035	0.40

KR Grade B Shipbuilding Steel Tensile Requirements

Grade	Yield Strength (Mpa)	Tensile Strength (MPa)	Elongation in 8 in. [200mm] (%)	Elongation in 2 in. [50mm] (%)	Test Temperature(°C)
KR B	235	400-520	21	24	20

As a professional KR B shipbuilding steel manufacturer, Shanghai Katalor can supply KR B shipbuilding steel plates, KR B steel angles, KR B channels and KR B bulb flats. KR B shipbuilding steel is mainly used for making the hull of ship building and ship repairing, the offshore oil drilling platform, the platform pipe joints and other components. KR B shipbuilding steel products also can be used for producing container and bulk cargo vessels as well as cruise ships, ferries and yachts.