ABS Grade E Steel Plate – Properties & Equivalents

ABS Grade E (also written AB/E, ABS Grade E ship plate) is an ordinary-strength hull structural steel plate certified to the ABS Rules for Materials and Welding, Part 2, Chapter 1, Section 2. All four ordinary grades A, B, D and E share the same strength: minimum yield 235 MPa and tensile strength 400-520 MPa. The grade letter sets the toughness requirement: Grade E is Charpy tested at -40°C and is always killed and fine-grain treated, for areas needing the highest toughness of the ordinary grades. The same grade appears as E in IACS UR W11 and as Grade E in ASTM A131.

Related grades: ABS Grade A steel plate ABS Grade B steel plate ABS Grade D steel plate ABS AH32 steel plate.

               

Gangsteelis specialized in supplying ABSgeneral strength steel plate in ABS Grade E. For more information of Grade E steel plate, please check them in following:

 

 

 

ABS GRADE E general Strength Chemical Composition

ABS GRADE E

ABS Grade E chemical composition, % – heat (ladle) analysis and product (check) analysis

Element	Heat analysis (max/min)	Product analysis
C	≤ 0.18	≤ 0.22
Mn	≥ 0.70	— (min-only limit; A6 Table A band is keyed to an upper limit, so no product value given)
Si	0.10–0.35	0.05–0.40
P	≤ 0.035	≤ 0.045
S	≤ 0.035	≤ 0.045
Al (acid-soluble)	≥ 0.015	— (no tolerance in ASTM A6 Table A; product value not given)
C + Mn/6	≤ 0.40	— (calculated from heat analysis)

Si min does not apply where acid-soluble Al ≥ 0.015%. Ni, Cr, Mo and Cu are to be determined and reported (no ABS limit, so no product value). Product analysis = heat limit ± ASTM A6/A6M Table A permitted variation (band chosen by the specified maximum/upper limit); applies only when product (check) analysis is required; for a range, results may not vary both above and below it. Per ABS Rules for Materials and Welding Part 2 (2022); product analysis tolerances per ABS 2-1-2/5.3 (“chemical tolerances of ASTM A6”) and ASTM A6/A6M 7.2, Table A (also invoked by ASTM A131). Heat limits: ABS 2-1-2/15.9 Table 1 (t ≤ 150 mm).

Crack Sensitivity:  Pcm = (C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B)%
Carbon Equivalent:  Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%

 

 

 

 

ABS GRAD E generalstrength property

ABS GRADE E

ABS Grade E mechanical properties by thickness

Thickness (mm)	Yield min (MPa)	Tensile (MPa)	Elongation A5 min (%)	Charpy test temp (°C)	Impact avg min, longitudinal (J)	Impact avg min, transverse (J)
t≤50	235	400-520	22	-40	27	20
50<t≤70	235	400-520	22	-40	34	24
70<t≤100	235	400-520	22	-40	41	27

Source: ABS Rules Pt 2, 2-1-2 Tables 2 & 4. Either direction acceptable.

Boiler steel plates| Alloy steel plates| High strength plate| Carbon steel plate

 

 

 

 

 

Equivalent steel grade of ABS GRADE E
DNV	GL	LR	BV	CCS	NK	KR	RINA
NV E	GL-E	LR/E	BV/E	CCS/E	K E	R E	RI/E

 

 

 

 

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 Related steel grades: AB/D, AB/B, AB/A, AB/EH32

 

ABS Steel Plate Grade Supplier
General Strength	AB/A	AB/B	AB/D	AB/E
High Strength	AB/AH32	AB/DH32	AB/EH32	AB/FH32
	AB/AH36	AB/DH36	AB/EH36	AB/FH36
	AB/AH40	AB/DH40	AB/EH40	AB/FH40
Extra Strength	AB/AQ43	AB/DQ43	AB/EQ43	AB/FQ43
	AB/AQ47	AB/DQ47	AB/EQ47	AB/FQ47
	AB/AQ51	AB/DQ51	AB/EQ51	AB/FQ51
	AB/AQ56	AB/DQ56	AB/EQ56	AB/FQ56
	AB/AQ63	AB/DQ63	AB/EQ63	AB/FQ63
	AB/AQ70	AB/DQ70	AB/EQ70	AB/FQ70

 

  

                     

ABS Grade E thickness and impact requirements

ABS impact energy rises with plate thickness. ABS Grade E is tested at -40°C. Minimum average energies (full-size specimens):

• t≤50 mm: 27 J longitudinal / 20 J transverse
• 50<t≤70 mm: 34 J longitudinal / 24 J transverse
• 70<t≤100 mm: 41 J longitudinal / 27 J transverse

The ABS tables cover plates up to 150 mm. Plates thicker than 100 mm, or produced from coil, have extra rules in ABS Part 2, Chapter 1, Section 1.

ABS Grade E equivalent grades

Standard / society	Equivalent grade
ABS	AB/E
IACS UR W11	E
ASTM A131	Grade E
DNV	VL E
LR / BV / CCS / RINA	E
NK	KE
KR	RE

Grades are equivalent in chemistry and properties because the IACS societies use the same unified requirements. A plate still needs a certificate from the vessel's own classification society, so one plate can carry dual or multiple class certification only when each society's surveyor tests it.

ASTM equivalent: ASTM A131 Grade E steel plate

LR equivalent: LR Grade E steel plate