BS 970:1955 EN8E Steel: Specifications, Equivalents & Listings

Category: Carbon Steel

Grade Details

Grade	BS 970:1955 EN8E
Standard	BS 970:1955

Equivalent / Similar Grades

Grade	Standard	Region	Live on M-EX
BS 970 EN8CM	BS 970:1955	UK	No activity yet
SAE J403 1038	SAE J403:2014	USA	2 listings, 0 RFQs →
BS 970 EN8B	BS 970:1955	UK	No activity yet
BS 970 EN8BM	BS 970:1955	UK	No activity yet
BS 970 EN8	BS 970:1955	UK	28 listings, 25 RFQs →
BS 970 EN8K	BS 970:1955	UK	No activity yet
BS 970 EN8A	BS 970:1955	UK	3 listings, 0 RFQs →
BS 970 EN8C	BS 970:1955	UK	No activity yet
BS 970 EN8AM	BS 970:1955	UK	No activity yet

Grade ComparisonCompare With a Specific Grade →

Grade	Standard	Match
BS 970 EN8B	BS 970:1955	Strong Match
BS 970 EN8BM	BS 970:1955	Strong Match
BS 970 EN8	BS 970:1955	Strong Match
BS 970 EN8K	BS 970:1955	Strong Match
BS 970 EN8A	BS 970:1955	Strong Match
BS 970 EN8C	BS 970:1955	Strong Match
BS 970 EN8AM	BS 970:1955	Strong Match
BS 970 EN8D	BS 970:1955	Strong Match

Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.

Chemical Composition (%)

C	Si	Mn	S	P
0.35-0.40	0.05-0.35	0.90-1.10	<=0.060	<=0.060

Mechanical Properties

Tensile Strength	≥541 MPa (35 tons/sq in, converted)
Yield Strength	≥278 MPa (18 tons/sq in, converted)
Elongation	≥20%
Hardness	152-207 HB
Condition	NGC 1, Normalised, ruling section 6 in (lowest-strength condition of the standard)

More data from BS 970:1955

From the standard

Condition of material on delivery

Bars and billets for forging as rolled or forged unless order states otherwise.

Forgings and drop-forgings in the finally heat treated condition unless order states otherwise.

Bars for machining in the finally heat treated condition unless order states otherwise.

Bright bars per the tables (as altered Feb. 1963).

Source: BS 970:1955, Part 2, En 8E (page 54)

Mechanical properties

Condition	Ruling section or size (in)	Tensile strength (tons/sq in)	Yield stress (tons/sq in)	Elongation (%)	Izod impact (ft lb)	Brinell (HB)	Proof stress 0.2% (tons/sq in), when requested
NGC 1, Normalised	6	35	18	20	-	152-207	-
NGC 1, Hardened and tempered Q	2 1/2	40	28	22	10	179-229	-
NGC 1, Hardened and tempered R	7/8	45	32	20	10	201-255	-
NGC 2, Normalised	6	35	18	17	-	152-207	-
NGC 2, Hardened and tempered Q	2 1/2	40	28	17	-	179-229	-
NGC 2, Hardened and tempered R	7/8	45	32	17	-	201-255	-
GC 1 controlled grain size (McQuaid-Ehn 5-8), Normalised	4	35	18	20	20	152-207	-
GC 1 controlled grain size (McQuaid-Ehn 5-8), Normalised	6	35	18	20	15	152-207	-
GC 1 controlled grain size (McQuaid-Ehn 5-8), Hardened and tempered Q	2 1/2	40	28	22	25	179-229	-
GC 1 controlled grain size (McQuaid-Ehn 5-8), Hardened and tempered R	1/2	45	32	20	40	201-255	-
GC 1 controlled grain size (McQuaid-Ehn 5-8), Hardened and tempered R	7/8	45	32	20	25	201-255	-
GC 2, Normalised	6	35	18	17	dagger (10 where carbon not over 0.40)	152-207	-
GC 2, Hardened and tempered Q	1 1/8	40	28	17	25	179-229	-
GC 2, Hardened and tempered Q	2 1/2	40	28	17	15	179-229	-
GC 2, Hardened and tempered R	7/8	45	32	17	25	201-255	-
Cold drawn following hot rolling, size (diameter or width across flats) 1 1/4 or less in	-	42	-	10	-	<=241	-
Cold drawn following hot rolling, size (diameter or width across flats) Over 1 1/4 to 2 1/2 in	-	39	-	10	-	<=229	-
Cold drawn following hot rolling, size (diameter or width across flats) Over 2 1/2 in	-	37	-	10	-	<=229	-

Values as printed in BS 970:1955; tensile strength, yield stress and proof stress in tons/sq in, Izod in ft lb. Minimum unless a range is shown.

Source: BS 970:1955, Part 2, En 8E (page 55)

Heat treatment

Normalise

830/860 C

Harden (oil)

830/860 C

Temper

550/660 C

Temperatures in degrees C as printed.

Source: BS 970:1955, Part 2, En 8E (page 54)

Status in the 1955 edition

Status

Deleted by Amendment 9

Reason

Amendment 9 (Feb 1972): carbon and carbon-manganese steels moved to BS 970 Part 1:1972

BS 970:1955 was amended up to Amendment 10 (June 1972); steels were moved to the revised Parts 1 to 5 and deleted from this edition.

Source: BS 970:1955, Amendment slips 6 to 10

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BS 970:1955 EN8E Steel: Specifications & Listings

More data from BS 970:1955

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