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 1991BS 970 1955 ENAISI/SAEWerkstoff
220M07EN1A11131.0711
230M07EN1A12131.0715

Specification BS 970: 1955EN1A Steel Chemical CompositionBS 970:1991/1983 Nearest Equivalent
CSiMnNiCrMoSP
%%%%%%%%
En 1A0.07/0.150.10Max.0.80/1.20---0.20/0.300.07Max230m07


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

En1A Mild Steel Rounds Bright Drawn / Turned Stock
Size (ins. dia)3/321/85/323/167/321/49/325/1611/323/87/161/217/32
9/165/811/163/413/167/815/1611 1/161 1/81 3/161 1/41 5/16
1 3/81 7/161 1/21 5/81 11/161 3/41 7/822 1/82 1/42 3/82 1/22 5/8
2 3/42 7/833 1/83 1/43 3/83 1/23 5/83 3/43 7/844 1/44 1/2
4 3/455 1/45 1/25 3/466 1/46 1/26 3/477 1/47 1/28
Size (mm dia)22.534566.5789101112
13141516171819202224252628
30323536384042454648505255
565860657075808590100105110120
125130140150
En1A Rounds Precision Ground Stock
Size
(ins. dia)
1/43/81/25/83/47/811 1/41 3/81 1/21 3/422 1/42 1/2
3Tolerances: up to 1" dia +/- 0.00025"
 
Size
(mm dia)
46810121516202530354050 
Tolerances:
4mm to 30mm dia. +0mm/-0.0127mm
35mm to 50mm dia. +0mm/-0.0254mm
En1A Rounds Hot Rolled
Size (mm dia)6065707580859095100105110115120125
130135140145150155160165170180190200210220
En1A Hexagons Bright Drawn
Size (ins. A/F)0.1930.2480.3120.3240.3750.4370.4450.5000.5250.5620.6000.6250.6870.710
0.7500.8120.8200.8750.9200.9371.0001.0101.0621.1001.1251.2001.2501.300
1.3121.4801.5001.6251.6701.8602.0502.2202.4102.5802.7603.1503.550 
Size (mm A/F)567810111213141516171819
2022242526273032353641465055
60657075          
En1A Squares Bright Drawn
Size (ins. sq)3/161/45/163/87/161/29/165/83/47/811 1/81 1/41 3/8
1 1/21 3/422 1/42 3/433 1/43 1/24     
Size (mm sq)567810121415161820222530
3240455060         
En1A Imperial Flats
3/81/8
3/41/2
11/4, 3/8, 1/2, 5/8, 3/4
1 1/43/8, 1/2, 3/4, 7/8, 1
1 1/21/4, 3/8, 1/2, 5/8, 3/4, 1, 1 1/4
1 3/41, 1 1/4
21/4, 3/8, 1/2, 5/8, 3/4, 1, 1 1/4
2 1/23/8, 1/2, 1, 1 1/2, 1 3/4
33/8, 1/2, 3/4, 1, 11/2, 2
43/8, 1/2, 3/4, 1, 1 1/2, 2, 2 1/2, 3
51/2, 3/4, 1, 1 1/4, 1 1/2, 2, 3
61/4, 3/8, 1/2, 5/8, 1, 1 1/4, 1 1/2, 2
81/2, 3/4, 1, 1 1/4, 1 1/2
101/2, 3/4, 1
121/2. 1
En1A Mild Steel Metric Flats
10 mm3, 5 mm
12 mm3, 5, 6 mm
13 mm3 mm
16 mm3 mm
20 mm3, 5, 6, 8, 10, 12
25 mm3, 5, 6, 8, 10, 12, 16, 20
30 mm3, 5, 6, 8, 10, 12, 16, 20, 25
40 mm3, 5, 6, 8, 10, 12, 16, 20, 25, 30
50 mm3, 5, 6, 8, 10, 12, 16, 20, 25, 30
60 mm3, 6, 8, 10, 12, 16, 20, 25, 30
70 mm3, 5, 6, 8, 10, 12, 16, 20, 25
80 mm5, 6, 8, 10, 12, 16, 20, 25
90 mm6, 10, 12, 16
100 mm3, 5, 6, 8, 10, 12, 16, 20, 25, 30, 40, 50
125 mm10, 25, 50
150 mm6, 10, 12, 16, 20, 25, 30, 40, 50 
200 mm10, 12, 20, 25, 30, 50

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