ASTM A131 Grade E shipbuilding steel is not only the common tensile strength steel but also is the Hull structural steel. Grade E shipbuilding steel has good toughness properties, higher strength,strong corrosion-resistance,the processing properties,and good welding properties. Shipbuilding steel grade E is used for shipbuilding and oil platform purpose and they are approved by ABS, DNV, GL, BV, LR, NK, RINA and other classification societies. What's more,the A shipbuilding steel E can be used in the manufacture of the ship's hull structure whose weight is below 10000 tons,and usually do navigation around coastal and river area.
Grade E shipbuilding steel plate specification:
Thickness: 6mm-200mm, Width: 1500mm-4000mm, Length: 6000mm-180000mm
Grade E shipbuilding steel Chemical Composition
Grade | C max | Si max | Mn | P max | S max | Als min |
Grade E | 0.18 | 0.35 | 0.70-1.20 | 0.035 | 0.035 | 0.015 |
Note: CE: C+1/6Mn ≤ 0.40% Cu ≤ 0.35%,Ni ≤ 0.30%≤
Grade E shipbuilding steel Mechanical Property
Grade | Rm | Re(MPa) min | A% min | Akv/J min | ||||||
Grade E | 400-520 | 235 | 22 | E.T °C | Thickness (mm) | |||||
-40 | ≤ 50 | >50-70 | >70-100 | |||||||
L | C | L | C | L | C | |||||
27 | 20 | 34 | 24 | 41 | 27 |
Note: In the list , Rm: tensile strength,Re: Yield strength,A%: elongation, E.T: experimental temperature,L: lengthways, C: crosswise.
Grade E shipbuilding steel Condition Of Delivery
Grade | category | The thickness of steel | ||||
≤ 12 | >12.5-25 | >25-35 | >35-50 | >50-100 | ||
Grade E | Plate/sheet | N,TM | ||||
Profile steel | N(25),TM(25),AR*(15),CR*(15) | - |
Note: 1. delivery condition: A =Any ; N=Normalized ; CR=Control Rolled ; TM=TMPC, Temperature - deformation control rolling; AR*= Can be hot rolled with the agreement of Classification Society ; CR*=Can be control rolled with the agreement of Classification Society .
2. The Figure in the ( ) means the sampling volume to do the impact test, the unit is Ton.(-) means without impact test.
E steel Contrast in the different standard
ASTM A131M | TOCT 5521 | JIS G3106 | BS LR | GB712 |
Grade E | Grade E | SM400B | Grade E | Grade E |
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