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Extra-high strength

Extra-High strength Shipbuilding steel plate

Extra-High strength Shipbuilding steel plate A420/AQ43/AH42/A43, D420/DQ43/DH42/D43, E420/EQ43/EH42/E43, F420/FQ43/FH42/F43, A460/AQ47/AH46/A47, D460/DQ47/DH46/D47, E460/EQ47/EH46/E47, F460/FQ47/FH46/F47, A500/AQ51/AH50/A51, D500/DQ51/DH50/D51, E500/EQ51/EH50/E51, F500/FQ51/FH50/F51, A550/AQ56/AH55/A56, D550/DQ56/DH55/D56, E550/EQ56/EH55/E56, F550/FQ56/FH55/F56, A620/AQ63/AH62/A63, D620/DQ63/DH62/D63, E620/EQ63/EH62/E63, F620/FQ63/FH62/F63, A690/AQ70/AH69/A70, D690/DQ70/DH69/D70, E690/EQ70/EH69/E70, F690/FQ70/FH69/F70

Product mane : Shipbuilding steel plate/sheet, the steel plate for shipbuilding, marine steel plates, steel plate for ship, steel plate for ship hull, hull steel plate, Ship steel plate, Offshore steel, offshore engineering steel.

Standard : ABS, LR, GL, DNV, BV , NK, KR, RINA, CCS
Steel Grade : A420/AQ43/AH42/A43, D420/DQ43/DH42/D43, E420/EQ43/EH42/E43, F420/FQ43/FH42/F43, A460/AQ47/AH46/A47, D460/DQ47/DH46/D47, E460/EQ47/EH46/E47, F460/FQ47/FH46/F47, A500/AQ51/AH50/A51,D500/DQ51/DH50/D51, E500/EQ51/EH50/E51, F500/FQ51/FH50/F51, A550/AQ56/AH55/A56, D550/DQ56/DH55/D56, E550/EQ56/EH55/E56, F550/FQ56/FH55/F56, A620/AQ63/AH62/A63, D620/DQ63/DH62/D63, E620/EQ63/EH62/E63, F620/FQ63/FH62/F63, A690/AQ70/AH69/A70, D690/DQ70/DH69/D70, E690/EQ70/EH69/E70, F690/FQ70/FH69/F70
Delivery condition: CR, Normalized, Q&T, TMCP, Impact test. Z15, Z25, Z35
Dimension range : 3mm -120mm x 1000mm-4000mm x 1000mm-18000mm
MOQ: 1 PC
Delivery time : Promptly ( Stock) or 10-40 days (Production)
Stock : Available
MTC: Available
Payment Term : T/T or L/C At sight .

Specification :
Shipbuilding steel material A420/AQ43/AH42/A43, D420/DQ43/DH42/D43, E420/EQ43/EH42/E43, F420/FQ43/FH42/F43, A460/AQ47/AH46/A47, D460/DQ47/DH46/D47, E460/EQ47/EH46/E47, F460/FQ47/FH46/F47, A500/AQ51/AH50/A51, D500/DQ51/DH50/D51, E500/EQ51/EH50/E51, F500/FQ51/FH50/F51, A550/AQ56/AH55/A56, D550/DQ56/DH55/D56, E550/EQ56/EH55/E56, F550/FQ56/FH55/F56, A620/AQ63/AH62/A63, D620/DQ63/DH62/D63, E620/EQ63/EH62/E63, F620/FQ63/FH62/F63, A690/AQ70/AH69/A70, D690/DQ70/DH69/D70, E690/EQ70/EH69/E70, F690/FQ70/FH69/F70 are the extra-high tensile strength steel.They are the Hull structural steel,with it's good toughness properties, higher strength,strong corrosion-resistance,the processing properties,and welding properties.This kind of steel can be used in the manufacture of the ocean ship's hull structure whose weight is above 10000 tons.

Extra-high tensile strength shipbuilding steel 420/460/550/620/690 chemical composition %

Grade

C max

Si 

Mn

max

P max

S max

Als 

N max

Nb max

V

max

Ti

max

B

max

420

0.21

0.10-0.55

1.7

0.035

0.035

0.015-0.08

0.20

0.02-0.05

0.04-0.10

0.02

0.005

460

0.21

0.10-0.55

1.7

0.035

0.035

0.015-0.08

0.20

0.04-0.10

0.04-0.10

0.02

0.005

500

0.21

0.10-0.55

1.7

0.035

0.035

0.015-0.08

0.20

0.04-0.10

0.04-0.10

0.02

0.005

550

0.21

0.10-0.55

1.7

0.035

0.035

0.015-0.08

0.20

0.02-0.05

0.04-0.10

0.02

0.005

620

0.21

0.10-0.55

1.7

0.035

0.035

0.015-0.08

0.20

0.02-0.05

0.04-0.10

0.02

0.005

690

0.21

0.10-0.55

1.7

0.035

0.035

0.015-0.08

0.20

0.02-0.05

0.04-0.10

0.02

0.005

Extra-high tensile strengthshipbuilding steel 420/460/550/620/690 Mechanical Property

Grade

Mechanical Property

Charpy V Impact Test

Yield Min Mpa

Tensile

Mpa

Elongation

Min  %

Degree

Energy 1 (J)

Energy 2(J)

420

420

530-680

18%

0

28

42

460

460

570-720

17%

0

31

46

500

500

610-770

16%

0

33

50

550

550

670-830

16%

0

37

55

620

620

720-890

15%

0

41

62

690

690

770-940

14%

0

46

69

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