Steel - Equivalent Grades

Steel - Equivalent Grades

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Projects 25 ≤40 > 40 ≤100 > 100 ≤150

Shipbuilding rules LR / GL / NV etc.

API 2H-50 e. g. E 36 / EH 36

Tensile strength Rm [MPa] 460 – 620 " '' ''

470 – 630 " -

Thick. [mm] ≤16 > 16 ≤20 > 20 ≤25 > 25 ≤40 > 40 ≤63 > 63 ≤80 > 80 ≤100 > 100 ≤120 > 120 ≤150

S355G7+N S355G8+N S355G9+N S355G10+N

API 2H

470 – 630 " '' -

470 – 630 " '' ''

483 – 620 " '' ''

90 – 620 " '' ''

≥355*) '' '' '' '' ≥325*) '' '' ''

≥355 '' '' '' '' '' '' '' ''

Yield Strength ReH [MPa] ≥355 '' '' ≥345 ≥340 ≥325 ≥325 ≥315 ≥305

≥355 ≥345 '' -

≥355 ≥345 '' '' -

≥355 '' '' ≥345 ≥335 ≥325 '' '' ≥320

*)Rp0.2 BS7191

EN 10225 / NORSOK

API 2H

Shipbuilding rules LR / GL / NV

8/12/2010 11:12 PM

Steel - Equivalent Grades

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355 N

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355EM / EMZ

S355G2+N

S355G3+N

S355G7+N S355G8+N S355G9+N API 2H-50 S355G10+N

e. g. E 36 / EH 36

Minimum Impact Energy Av [Joule] - transverse (average/single) - at a test temperature of Surface All thickness < 40 mm < 50 mm Quarter thick. >40 > 50 < 70 > 70 < 150 Mid-thickness All thicknesses > 40 mm

-40 oC

-40 oC

-40 oC

-40 oC

-40 oC

-40 oC

50 / 35 -

50 / 35 -

50 / 35 -

50 / 35 -

41/34 -

24/17

-

-

-

-

41/34 -

27 /19 34 / 24

50 / 35

-

-

50 / 35

-

-

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Grade 355 TMCP – comparison of tensile strength, yield strength and Toughness

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355 N and TMCP – Comparison of yield to tensile strength ratios

8/12/2010 11:12 PM

Steel - Equivalent Grades

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420/450/460 - chemical compositions

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420 / 450 / 460 TMCP – comparison of tensile strength, yield strength and toughness

8/12/2010 11:12 PM

Steel - Equivalent Grades

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420 / 450 / 460 Q+T – comparison of tensile strength, yield strength and toughness

8/12/2010 11:12 PM

Steel - Equivalent Grades

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420 / 450 / 460 TMCP and Q+T – comparison of yield to tensile strength ratios

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Weldability qualifications of Dillinger Hütte -for different delivery conditions and steel grades *) N:

TMCP:

Q+T:

355EM / 355EMZ Maximum qualified plate thickness in Dillinger Hütte: 120 mm (According to BS 7191 appendix F + G)

355EM / 355EMZ Maximum qualified plate thickness in Dillinger Hütte: 85 mm (According to BS 7191 appendix F + G)

S420G1+Q / S420G2+Q / S460G1+Q / S460G2+Q Maximum qualified plate thickness in Dillinger Hütte: 100 mm (According to EN 10225,if option 18 is chosen)

S355G7+N / S355G8+N / S355G9 N / S355G10+N Maximum qualified plate thickness in Dillinger Hütte: 120 mm (According to EN 10225, if option 18 is chosen)

S355G7+M / S355G8+M / S355G9+M / S355G10+M Maximum qualified plate thickness in Dillinger Hütte: 85 mm (According to EN 10225, if option 18 is chosen)

450EM / 450EMZ Maximum qualified plate thickness in Dillinger Hütte: 100 mm (According to BS 7191appendix F + G)

API 2W-50(T) Maximum qualified plate thickness in Dillinger Hütte: 90 mm (According to API RP2Z, if suppl. S11 is chosen) S420G1 + M / S420G2+M / S460G1+M / S460G2+M Maximum qualified plate thickness in Dillinger Hütte: 100 mm (According to EN 10225, if option 18 is chosen) 450EM / 450EMZ Dillinger Hütte is qualified up to 100 mm (According to BS 7191 appendix F + G)

API 2W-60 Maximum qualified plate thickness in Dillinger Hütte: 75 mm (According to API RP2Z, if suppl. S11 is chosen)

*) Several grades require a weldability qualification according to a standard or an approval of a classification company, which is necessary for a delivery.

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Approvals of Dillinger Hütte for shipbuilding grades *)

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Steel - Equivalent Grades

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(examples for E36 / EH36 respectively F40 / FH40) Grade ABS-EH36 ABS-AH40 to FH40 BV-EH36 BV-E36 NV-E36 NV-F36 GL-E36 LR-EH36 LR-F36 NV-A420 NV-E420 GL-A40 to E40

Classification Company ABS ABS

Thickness [mm] ≤100 ≤65

Delivery Condition TMCP N

ABS BV BV DNV DNV DNV GL GL LR LR LR

≤44 ≤80 ≤50 ≤100 ≤50 ≤80 ≤250 ≤100 ≤170 ≤100 ≤70

TMCP TMCP N TMCP N TMCP N TMCP N TMCP TMCP

NV

≤100

TMCP

GL

≤100

TMCP

Detailed inquiries concerning approvals are to be submitted to our Quality Department. This summary is only for information. In case of conflicts the original standard has to be applied. Individual feasibility and combination of grades are a matter of an inquiry.

*) The shipbuilding grades (e.g. E36 or E40) require a formal approval by the relevant classification company.

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8/12/2010 11:12 PM