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Matter Index
Notes on Steel Standards

Information On Selected British Standard Steels

Important Notes:
All information on this page has been interpreted from the relevent Standard, Books, Other Web Sites, and Leaflets. This information is of a general nature for initial guidance. Selection of materials for use must be by communication with the suppliers and by reference to the appropriate codes
The values below are not comprehensive and must be used with extreme care.
The strength values e.g. the proof stress and yield stress, reduce as the section increases.  In the tables below the relevant sections are often thin and so the strength values are maximum values.  Please refer to the relevant standards for important work..

BS EN 10025 Hot rolled products of non-alloy structural steels

Note:
The yield stress and the tensile stress vary considerably with the section size.
The lowest values are for the lowest value of the thickest section available
The highest values are for the highest value of the thinnest section (< 3mm for Rm, <= 16mm for ReH)

Name Number C Mn Si(max) P S Ni Yield Stress ReH Tensile Strength Rm Equivalent BS Code
MPa MPa
S185 1.0035 - - - - - - 175-185 290-540 - -
S235JR 1.0037 0,17 1,40 - 0,045 0,045 0,009 225-235 340-510 - -
S235JRG2 1.0038 0,17 1,40 - 0,045 0,045 0,009 175 - 235 320-510 BS4360 40B
S235J0 1.0114 0.17 1.40 - 0.040 0.040 0.009 175 - 235 320-510 BS4360 40C
S235J2G3 1.0116 0,17 1,40 - 0,035 0,036 - 175 - 235 320 - 510 BS4360 40D
S275JR 1.0044 0,21 1,50 - 0,045 0,045 0,009 205 - 275 380 - 580 BS4360 43B
S275J0 1.0143 0,18 1,50 - 0,040 0,040 0,009 205 - 275 380 - 580 BS4360 43C
S275J2G3 1.0144 0,18 1,50 - 0,035 0,035 - 205 - 275 380 - 580 BS4360 43D
S355JR 1.045 0,24 1,60 0,55 0,045 0,045 0,009 275 - 355 450 - 680 BS4360 50B
S355J0 1.0553 0,2 1,60 0,55 0,04 0,04 0,009 275 - 355 450 - 680 BS4360 50C
S355J2G3 1.0570 0,2 1,6 0,55 0,35 0,35 - 275 - 355 450 - 680 BS4360 50D



BS EN 10028 Flat products made of Steel for Pressure Purposes
Name Number C Mn Si P S Ni Yield Stress Re Tensile Strength Rm Equivalent BS Code
MPa MPa
P235GH - 0,16 0,4 -1,2 - - - - 235 360-480 BS 1501 164-360
P265GH - 0,2 0,5 -1,4 - - - - - 390- BS 1501 -
P295GH - 0,08 - 0,2 0,9 -1,5 - - - - 295 460-580 BS 1501 -



BS EN 10083-1 Quenched and Tempered Steels - Special Steels

Note:
The yield stress and the tensile strength are for dia /thickness <= 16mm (Normalised)
Thicker sections have lower strengths
Strength values are for Quench and Tempered conditions.

Name... Number C          Si(max) Mn P(max) S(max) Cr(max) Mo(max) Ni(max) Proof Stress Re Tensile Strength Rm (min) Equivalent BS Code
MPa MPa
C22E 1.1151 0,17 - 0,24 0,40 0,40 -0,70 0,35 0,35 0,40 0,10 0,40 340 500 -650 - -
C22R 1.1149 0,17- 0,24 0,40 0,40-0,70 0,35 0,20-0,40 0,40 0,10 0,40 340 500-650 - -
C35E 1.1181 0,32-0,39 0,40 0,50-0,80 0,35 0,35 0,40 0,10 0,40 430 630 -780 - -
C35R 1.1180 0,32-0,39 0,40 0,50-0,80 0,35 0,20-0,40 0,40 0,10 0,40 430 630-780 - -
C45E 1.1191 0,42-0,50 0,40 0,50-0,80 0,35 0,35 0,40 0,10 0,40 490 700-850 - -
C45R 1.1201 0,42-0,50 0,40 0,50-0,80 0,35 0,20-0,40 0,40 0,10 0,40 490 700-850 - -
C60E 1.1221 0,57-0,65 0,40 0,60-0,90 0,35 0,35 0,40 0,10 0,40 580 850-1000 - -
C60R 1.1223 0,57-0,65 0,40 0,60-0,90 0,35 0,20-0,40 0,40 0,10 0,40 580 850-1000 - -
34Cr4 1.7033 0,30-0,37 0,40 0,60-0,90 0,35 0,35 0,90-1,20 - - 700 900-1100 - -
34CrS4 1.7037 0,30-0,37 0,40 0,60-0,90 0,35 0,20-0,40 0,90-1,20 - - 700 900-1100 - -


BS EN 10083-2 Quenched and Tempered Steels - Unalloyed Steels

Note:
The yield stress and the tensile strength are for (Normalised)dia /thickness ≤ 16mm and (Q & T) dia ≤ 16mm and Thickness t ≤ 8mm (Q & T)
Thicker sections have lower strengths
Strength values (QT) are quench and tempered. (N) values are normalized..

Name.. Number C          Si(max) Mn P(max) S(max) Cr(max) Mo(max) Ni(max) Proof Stress Re Tensile Strength Rm (min) Equivalent BS Code
MPa MPa
C22 1.0402 0,17-0,24 0,4 0,40-0,70 0,045 0,045 0,04 0,10 0,40 340(QT)
240(N)		 500(QT)
430(N)		 - -
C25 1.0406 0,22-0,29 0,4 0,40-0,70 0,045 0,045 0,04 0,10 0,40 370 (QT)
240(N)		 260 (QT)
470(N)		 - -
C30 1.0528 0,27-0,34 0,4 0,50-0,80 0,045 0,045 0,04 0,10 0,40 400(QT)
280(N)		 600 (QT)
510(N)		 - -
C40 1.0511 0,37-0,44 0,4 0,50-0,80 0,045 0,045 0,04 0,10 0,40 460 (QT)
320(N)		 650 (QT)
580(N)		 - -
C50 1.0540 0,47-0,55 0,4 0,60-0,90 0,045 0,045 0,04 0,10 0,40 520 (QT)
355(N)		 750 (QT)
650(N)		 - -
C60 1.0601 0,57-0,65 0,4 0,60-0,90 0,045 0,045 0,04 0,10 0,40 580 (QT)
380(N)		 850 (QT)
710(N)		 - -



BS EN 10087:1999 Free cutting steels

Note:
The yield stress and the tensile stress vary considerably with the section size.
The lowest values are for the lowest value of the thickest section ( > 63mm, ≤ 100mm)
The highest values are for the highest value of the thinnest section ( ≥5mm, ≤ 10mm )
For the relevant steel the strength values relate to the Hardened and Tempered condition.

Name Number C Si Mn P S Pb Yield Stress Re Tensile Strength Rm Equivalent BS Code
MPa MPa
Steels which are not heat treated
11SMn30 1.0715 <= 0,14 0,05 0,90-1,30 0,11 0,27 - 0,33 - - 360 - 570 BS 970-3 230M07
11SMnPb37 1.0737 <=0,14 0,05 0,10 - 1,50 0,11 0,34 - 0,40 0,20 - 0,35 - 360 - 570 - -
Case Hardened Steels
10S20 1.0721 0,07 - 0,13 0,40 0,70 - 1,10 0,06 0,15 - 0,25 - - 360 - 530 - -
15SMn13 1.0725 0,12 - 0,18 0,40 0,90 - 1,30 0,06 0,08-0,18 - - 420-610 - -
Direct Hardening Steels
35S20 1.0726 0,32 - 0,39 0,40 0,70 - 1,10 0,06 0,15 - 0,25 - 320 - 430 550-780 BS 970 EN 8M
36SMn14 1.0764 0,32 -0,39 0,40 1,30 - 1,70 0,06 0,10-0,18 - 360 -480 570 - 850 - -
38SMn28 1.0760 0,35 - 0,40 0,40 1,20 - 1,50 0,06 0,24 - 0,33 - 380 - 480 630 - 850 - -
44SMn28 1.0762 0,40 - 0,48 0,40 1,30 - 1,70 0,06 0,24 - 0,33 - 400 - 520 700 - 850 - -
46S20 1.0727 0,42 - 0,48 0,40 0,70 - 1,10 0,06 0,15 - 0,25 - 370 - 490 630 - 850 - -


BS EN 10088 Stainless Steels ..Part 2 sheet/plate and strip ..Part 3 bars, rods and sections

Name................ Number C
(max)		 Si
(max)		 Mn
(max)		 P
max)		 S N Cr Cu Mo Ni Proof Stress Rp0.2 Tensile Strength Rm Equivalent BS Code
MPa MPa
X6Cr17 1.4016 0,08 1,00 1,00 0,040 =< 0,03 - 16-18 - - - 240 400-630 BS1449-2
BS 970-3		 430S17
X6Cr13 1.4000 0,08 1,00 1,00 0,040 =<0,03 - 12-14 - - - 230 400-630 BS1449-2 403S17
X12Cr13 1.4006 0,08-0,15 1,00 1,50 0,040 =< 0,03 - 11,5-13,5 - - =< 0,75 450 (HT) 650-650 (HT) BS1449-2
BS 970-3		 410S21
X5CrNi18-10 1.4301 0,07 1,0 2,0 0,045 0,030 =< 0,11 17,0- 19,5 - - 8,0-10,5 190 500-700 BS1449-2
BS 970-3		 304S31
X2CrNi19-11 1.4306 0,03 1,0 2,0 0,045 0,030 =< 0,11 18,0-20,0 - - 10,0-12,0 180 460-680 BS1449-2
BS 970-3		 304S11
X2CrNi18-9 1.4307 0,03 1,00 2,00 0,045 =< 0,03 =< 0,11 17,5-19,50 - - 8-10 175 450-680 BS1449-2
BS 970-3		 304S11
X5CrNiMo17-12-2 1.4401 0,07 1,00 2,00 0,045 =< 0,03 =< 0,11 16,5 - 18,5 - 2,0-2,5 10 -13 200 500 - 700 BS1449-2
BS 970-3		 316S31
X2CrNiMo17-12-2 1.4404 0,030 1,00 2,00 0,045 =< 0,03 =< 0,11 16,5-18,5 - 2,0-2,5 10-13 200 500-700 BS1449-2
BS 970-3		 316S11
X6CrNiTi18-10 1.4541 0,08 1,00 2,00 0,045 =< 0,03 - 17-19 - - 9-12 190 500-700 BS1449-2
BS 970-3		 321S31
X1NiCrMoCu25-20-5 1.4539 0,020 0,70 2,0 0030 0,010 0,15 19-21 1,2-2,0 4-5 24 - 26 230 530-730 BS1449-2 310S24



BS EN 10130 Cold rolled low carbon steel products

Name Number C P S(max) Mn Ti Yield Stress Re Tensile Strength Rm Equivalent BS Code
MPa MPa
DC01 1.0330 0,12 0,045 0,045 0,060 - 140-280 270-410 - -
DC03 1.0347 0,10 0,035 0,035 0,045 - 140-240 270-370 - -
DC04 1.0338 0,08 0,030 0,030 0,040 - 140-210 270-350 - -
DC05 1.0312 0,06 0,025 0,025 0,035 - 140-180 270-330 - -



BS EN 10277 Bright Steel Products- Pt 2 Steels for general engineering

Note:
The proof stress and the tensile stress values are for Cold drawn bar.
The lowest values are for the lowest value of the thickest section ( >63mm, ≤ 100mm).
The highest values are for the highest value of the thinnest section (>=5mm, ≤ 10mm )

Name................ Number C Si Mn P S N Cr Mo Ni Proof Stress Rp0.2 Tensile Strength Rm Equivalent Old BS Code
MPa MPa
S235JRG2 1.0122 0,17max 1,40max - 0,045 0,045 0,009 - - - 215-355 340-840 - -
E335GC 1.0543 - - - 0,045 0,045 0,009 - - - 255-510 470 -950 - -
C10 1.0301 0,07-0,13 0,40 0,30-0,60 0,45 0,45 - - - - 180 -350 320 - 760 - -
C35 1.0501 0,32-0,39 0,40 0,50-0,80 0,45 0,45 - 0,40 0,10 0,40 270 - 510 520 - 1000 - 060A35
C45 1.0503 0,42-0,50 0,40 0,50-0,80 0,45 0,45 - 0,40 0,10 0,40 310 - 565 580 - 1050 - 080M46
C60 1.0601 0,57-0,65 0,40 0,60-0,90 0,45 0,45 - 0,40 0,10 0,40 480 - 630 730 - 1150 - 080A62


Steel Selection links
  1. British Stainless Steel Association...Properties /Relevant Standards for Stainless Steels
  2. Grade Alternatives... Mikra metal Stainless Steel Grades
  3. Material Cross Reference List..Coromant- Sandvik Comprehensive list of steels
  4. Hendrix Group..General Material Information Available
  5. Key-To-Metal...An excellent reference site for steel classifications and properties.- registration required for full access
  6. West Yorkshire Steel Co Ltd ...Reputable UK Steel Supplier, Site includes Material specifications
  7. Casti Metals Black Book ..Download . A comprehensive reference text on european metals including Ref to latest Standards
  8. Numbering Systems for Metals and Alloys...WNR (German/european) & UNS Numbering system lookup data
  9. Database of Steel and Alloy (Marochnik )...Database of Steels and Alloy (Russian,Ukraine etc)- Very useful for interested users
    European steels and Alloys ...Database of European Steels and Alloy and equivalents - Vast amount of useful information.****

Matter Index
Notes on Steel Standards

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