EN1A Steel

EN1A, also known as 230M07. EN1A is low carbon mild steel. Properties: free cutting, suitable for machining using both automatic and CNC machines. Available in square, round, flat or hexagon form. Equivalent to AISI 1113.

Popular size ranges shown below, other sizes available upon request.

BS 970 1991	BS 970 1955 EN	AISI/SAE	Werkstoff
220M07	EN1A	1113	1.0711
230M07	EN1A	1213	1.0715

Specification BS 970: 1955	EN1A Steel Chemical Composition								BS 970:1991/1983 Nearest Equivalent
	C	Si	Mn	Ni	Cr	Mo	S	P
	%	%	%	%	%	%	%	%
En 1A	0.07/0.15	0.10Max.	0.80/1.20	-	-	-	0.20/0.30	0.07Max	230m07

Rounds Bright Drawn | Rounds Precision Ground | Rounds Hot Rolled | Hexagons | Squares | Flats

En1A Mild Steel Rounds Bright Drawn / Turned Stock

Size (ins. dia)	3/32	1/8	5/32	3/16	7/32	1/4	9/32	5/16	11/32	3/8	7/16	1/2	17/32
	9/16	5/8	11/16	3/4	13/16	7/8	15/16	1	1 1/16	1 1/8	1 3/16	1 1/4	1 5/16
	1 3/8	1 7/16	1 1/2	1 5/8	1 11/16	1 3/4	1 7/8	2	2 1/8	2 1/4	2 3/8	2 1/2	2 5/8
	2 3/4	2 7/8	3	3 1/8	3 1/4	3 3/8	3 1/2	3 5/8	3 3/4	3 7/8	4	4 1/4	4 1/2
	4 3/4	5	5 1/4	5 1/2	5 3/4	6	6 1/4	6 1/2	6 3/4	7	7 1/4	7 1/2	8
Size (mm dia)	2	2.5	3	4	5	6	6.5	7	8	9	10	11	12
	13	14	15	16	17	18	19	20	22	24	25	26	28
	30	32	35	36	38	40	42	45	46	48	50	52	55
	56	58	60	65	70	75	80	85	90	100	105	110	120
	125	130	140	150

En1A Rounds Precision Ground Stock

Size (ins. dia)	1/4	3/8	1/2	5/8	3/4	7/8	1	1 1/4	1 3/8	1 1/2	1 3/4	2	2 1/4	2 1/2
	3	Tolerances: up to 1" dia +/- 0.00025"
Size (mm dia)	4	6	8	10	12	15	16	20	25	30	35	40	50
	Tolerances: 4mm to 30mm dia. +0mm/-0.0127mm 35mm to 50mm dia. +0mm/-0.0254mm

En1A Rounds Hot Rolled

Size (mm dia)	60	65	70	75	80	85	90	95	100	105	110	115	120	125
	130	135	140	145	150	155	160	165	170	180	190	200	210	220

En1A Hexagons Bright Drawn

Size (ins. A/F)	0.193	0.248	0.312	0.324	0.375	0.437	0.445	0.500	0.525	0.562	0.600	0.625	0.687	0.710
	0.750	0.812	0.820	0.875	0.920	0.937	1.000	1.010	1.062	1.100	1.125	1.200	1.250	1.300
	1.312	1.480	1.500	1.625	1.670	1.860	2.050	2.220	2.410	2.580	2.760	3.150	3.550
Size (mm A/F)	5	6	7	8	10	11	12	13	14	15	16	17	18	19
	20	22	24	25	26	27	30	32	35	36	41	46	50	55
	60	65	70	75

En1A Squares Bright Drawn

Size (ins. sq)	3/16	1/4	5/16	3/8	7/16	1/2	9/16	5/8	3/4	7/8	1	1 1/8	1 1/4	1 3/8
	1 1/2	1 3/4	2	2 1/4	2 3/4	3	3 1/4	3 1/2	4
Size (mm sq)	5	6	7	8	10	12	14	15	16	18	20	22	25	30
	32	40	45	50	60

En1A Imperial Flats

3/8	1/8
3/4	1/2
1	1/4, 3/8, 1/2, 5/8, 3/4
1 1/4	3/8, 1/2, 3/4, 7/8, 1
1 1/2	1/4, 3/8, 1/2, 5/8, 3/4, 1, 1 1/4
1 3/4	1, 1 1/4
2	1/4, 3/8, 1/2, 5/8, 3/4, 1, 1 1/4
2 1/2	3/8, 1/2, 1, 1 1/2, 1 3/4
3	3/8, 1/2, 3/4, 1, 11/2, 2
4	3/8, 1/2, 3/4, 1, 1 1/2, 2, 2 1/2, 3
5	1/2, 3/4, 1, 1 1/4, 1 1/2, 2, 3
6	1/4, 3/8, 1/2, 5/8, 1, 1 1/4, 1 1/2, 2
8	1/2, 3/4, 1, 1 1/4, 1 1/2
10	1/2, 3/4, 1
12	1/2. 1

En1A Mild Steel Metric Flats

10 mm	3, 5 mm
12 mm	3, 5, 6 mm
13 mm	3 mm
16 mm	3 mm
20 mm	3, 5, 6, 8, 10, 12
25 mm	3, 5, 6, 8, 10, 12, 16, 20
30 mm	3, 5, 6, 8, 10, 12, 16, 20, 25
40 mm	3, 5, 6, 8, 10, 12, 16, 20, 25, 30
50 mm	3, 5, 6, 8, 10, 12, 16, 20, 25, 30
60 mm	3, 6, 8, 10, 12, 16, 20, 25, 30
70 mm	3, 5, 6, 8, 10, 12, 16, 20, 25
80 mm	5, 6, 8, 10, 12, 16, 20, 25
90 mm	6, 10, 12, 16
100 mm	3, 5, 6, 8, 10, 12, 16, 20, 25, 30, 40, 50
125 mm	10, 25, 50
150 mm	6, 10, 12, 16, 20, 25, 30, 40, 50
200 mm	10, 12, 20, 25, 30, 50