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<!DOCTYPE html><head><meta http-equiv='Content-Type' content='text/html; charset=utf-8'><meta http-viv='Content-Type' content='text/html; charset=utf-8'><title>SteelNumber - EN 10027 - Designation systems for steels</title><meta name='keywords' content='EN 10027 - Designation systems for steels. Steel numbers' ><meta name='description' content='SteelNumber - EN 10027 - Designation systems for steels' ><meta name='viewport' content='width=device-width, initial-scale=1.0'><meta content='European Steel & Alloy Grades / Numbers Database (www.steelnumber.com)' name='author'> <meta content='European Steel and Alloy Grades / Numbers Database (steelnumber.com) Copyright 2011-2024' name='copyright'><link rel='icon' href='http://www.steelnumber.com/favicon.ico' type='image/x-icon'> <link rel='shortcut icon' href='http://www.steelnumber.com/favicon.ico' type='image/x-icon'> <style> body {font-family: Arial, Helvetica, sans-serif; font-size: 14px; padding: 0; margin: 0; } h1 { font-size: 16px; margin = 4px } h2 { font-size: 14px; margin = 4px } h3 { font-size: 14px; margin = 4px; letter-spacing:1pt;} table {border-color:#ccc; } table a {text-decoration: none;} a.aest {text-decoration: underline;} td {font-size: 14px;} li { font-size: 14px; } a.anot {text-decoration: none;} .menu1 { font-size: 14px; } .titl { font-size: 20px; letter-spacing:1pt; color='#f0f0f0'; margin =6px; padding-top: 20px;} .help1 { font-size: 12px; } .help2 { font-size: 12px; } .text2 { font-size: 12px; } .btn_bs { background: Coral; color: white; font-size: 14px; height: 30px;} </style><center> <script data-ad-client="ca-pub-6300528791853577" async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> </center> </head><body bgColor='#EFF5EB'><table width = '100%' cellspacing='0' cellpadding='1' border='0' bordercolor='#999999' bgcolor='#58a3c0' > <tr> <td align='center' ><img src='http://www.steelnumber.com/img/steelnumber.jpg' alt='SteelNumber: European Steel and Alloy Grades / Numbers Database' title='SteelNumber: European Steel and Alloy Grades / Numbers Database'></td></tr></table><table width= '100%' id='tbmenu' cellspacing='1' cellpadding='12' border='0' bordercolor='#FFFFFF' bgcolor='#e4eeec'><tr align='center'> <td><a class='anot' href='http://www.steelnumber.com/index.php'><b> Home </b></a> </td> <td><a class='anot' href='http://www.steelnumber.com/en/number_en10027_eu.php'> <b> Steel Numbers </a></td> <td><a class='anot' href='http://www.steelnumber.com/en/standard_eu.php'> <b> Steel / Cast iron Standards</a></td> <td><a class='anot' href='http://www.steelnumber.com/en/standard_nonferrous_eu.php'><b> Alloy Standards </a></td> <td><a class='anot' href='http://www.steelnumber.com/en/search_form_eu.php'> <b> Search </b></a></td> <td ><a class='anot' href='http://www.steelnumber.com/en/equivalent_grades_eu.php'> <b> Worldwide Equivalents </b></a> </td> </tr></table><center><h1><font color='#C71585'>Steel   Numbers <br> Steel Classification according to EN 10027-2.   Designation systems for steels.</h1></center></font><center><font class='help1'> You can compare the properties of steels after choosing the number</font><br><br><center> <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle" style="display:block; text-align:center;" data-ad-layout="in-article" data-ad-format="fluid" data-ad-client="ca-pub-6300528791853577" data-ad-slot="6167234827"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </center> <br><br><center> <table width='770' border='1' cellpadding='6' cellspacing='0' bgcolor='#f0f0f0' align='center' > <tr ><td width='48' align='center'><font size=+1><b>1.0XXX</b></td><td align='center' ><b>Non-alloy steels </td><td width='540'> <table width='98%' border='0' cellpadding='2' cellspacing='0' bgcolor='#f0f0f0' align='center' ><tr><td> <a href='number_steel_eu.php?number_kod=1.00' >Number = 1.00XX </a>   Base steels</td></tr><tr><td> <a href='number_steel_eu.php?number_kod=1.01' >Number = 1.01XX </a>   Quality steel (General structural steels with Rm < 500 MPa )</td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.02' > Number = 1.02XX</a>   Other structural steels (Not intended for heat treatment with Rm < 500 MPa )</td></tr><tr><td> <a href='number_steel_eu.php?number_kod=1.03' >Number = 1.03XX </a>   Steels with average C < 0,12%   or   Rm < 400 MPa</td></tr><tr><td> <a href='number_steel_eu.php?number_kod=1.04' >Number = 1.04XX </a>   Steels with average 0,12% =< C < 0,25%   or   400 MPa = < Rm < 500 MPa</td></tr><tr><td> <a href='number_steel_eu.php?number_kod=1.05' >Number = 1.05XX </a>   Steels with average 0,25% =< C < 0,55%   or   500 MPa =< Rm < 700 MPa</td></tr><tr><td> <a href='number_steel_eu.php?number_kod=1.06' > Number = 1.06XX </a>   Steels with average C >= 0,55%   or   Rm >= 700 MPa</td></tr><tr><td> <a href='number_steel_eu.php?number_kod=1.07' >Number = 1.07XX </a>   Steels with higher P or S content</td></tr> </table></td></tr><tr><td align='center'><font size=+1><b>1.0XXX</b></td><td align='center'><b>Alloy Steels</td><td> <table width='98%' border='0' cellpadding='2' cellspacing='0' bgcolor='#f0f0f0' align='center' ><tr><td> <a href='number_steel_eu.php?number_kod=1.08' >Number = 1.08XX </a>   Steels with special physical properties</td></tr><tr><td> <a href='number_steel_eu.php?number_kod=1.09' >Number = 1.09XX </a>   Steels for other applications</td></tr></table></td></tr><tr><td align='center'><font size=+1><b>1.1XXX</b></td><td align='center'><b>Non-alloy special steels</td><td><table width='98%' border='0' cellpadding='4' cellspacing='0' bgcolor='#f0f0f0' align='center' > <tr><td><a href='number_steel_eu.php?number_kod=1.10' >Number = 1.10XX</a>   Steels with special physical properties </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.11' >Number = 1.11XX</a>   Structural pressure vessel and engeneering steels with C < 0,5% </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.12' >Number = 1.12XX</a>   Structural pressure vessel and engeneering steels with C > = 0,5% </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.13' >Number = 1.13XX</a>  Structural pressure vessel and engeneering steels with special requirements</td></tr> <tr><td>Number = 1.14XX   - </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.15'>Number = 1.15XX</a>   Tool steel</td></tr> <tr><td>Number = 1.16XX   Tool steel</td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.17'>Number = 1.17XX</a>   Tool steel</td></tr> <tr><td>Number = 1.18XX   Tool steel</td></tr> <tr><td>Number = 1.19XX   - </td></tr> </table></td></tr><tr><td align='center'><font size=+1><b>1.2XXX</b></td><td align='center'><b>Alloy Tool Steels </td><td> <table width='98%' border='0' cellpadding='4' cellspacing='0' bgcolor='#f0f0f0' align='center' > <tr><td><a href='number_steel_eu.php?number_kod=1.20' >Number = 1.20XX</a>   Cr </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.21'>Number = 1.21XX</a>   Cr-Si,   Cr-Mn,   Cr-Mn-Si </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.22' >Number = 1.22XX</a>   Cr-V,   Cr-V-Si,   Cr-V-Mn,   Cr-V-Mn-Si </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.23'>Number = 1.23XX</a>   Cr-Mo,   Cr-Mo-V,   Mo-V </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.24'>Number = 1.24XX</a>   W,   Cr-W</td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.25'>Number = 1.25XX</a>   W-V,   Cr-W-V </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.26'>Number = 1.26XX</a>   W excluding groups 24, 25 and 27</td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.27'>Number = 1.27XX</a>   With Ni </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.28'>Number = 1.28XX</a>   Other </td></tr> <tr><td>Number = 1.29XX   - </td></tr> </table></td></tr><tr><td align='center'><font size=+1><b>1.3XXX</b></td><td align='center'><b>Alloy Miscellaneous Steels</b></td><td> <table width='98%' border='0' cellpadding='4' cellspacing='0' bgcolor='#f0f0f0' align='center' > <tr ><td>Number = 1.30XX   - </td></tr> <tr ><td>Number = 1.31XX   - </td></tr> <tr ><td><a href='number_steel_eu.php?number_kod=1.32'>Number = 1.32XX</a>   High speed steel with Co </td></tr> <tr ><td><a href='number_steel_eu.php?number_kod=1.33'>Number = 1.33XX</a>   High speed steel without Co</td></tr> <tr ><td><a href='number_steel_eu.php?number_kod=1.34'>Number = 1.34XX</a>   - </td></tr> <tr ><td>Number = 1.35XX   Bearing steels </td></tr> <tr ><td>Number = 1.36XX   Materials with special magnetic properties without Co </td></tr> <tr ><td>Number = 1.37XX   Materials with special magnetic properties and with Co </td></tr> <tr ><td><a href='number_steel_eu.php?number_kod=1.38'>Number = 1.38XX</a>   Materials with special physical properties without Ni </td></tr> <tr ><td>Number = 1.39XX   Materials with special physical properties and with Ni</td></tr> </table></td></tr><tr><td align='center'><font size=+1><b>1.4XXX</b></td><td align='center'><b>Stainless and Heat Resisting steels</td><td> <table width='98%' border='0' cellpadding='4' cellspacing='0' bgcolor='#f0f0f0' align='center' > <tr ><td><a href='number_steel_eu.php?number_kod=1.40' >Number = 1.40XX </a>   Stainless steel with Ni < 2.5 % without   Mo, Nb and Ti</td></tr> <tr ><td><a href='number_steel_eu.php?number_kod=1.41' >Number = 1.41XX </a>   Stainless steel with Ni < 2.5 % and   Mo but without   Nb and Ti</td></tr> <tr ><td>Number = 1.42XX   -</td></tr> <tr ><td><a href='number_steel_eu.php?number_kod=1.43' >Number = 1.43XX </a>   Stainless steel with Ni >= 2.5 % without   Mo, Nb and Ti</td></tr> <tr ><td><a href='number_steel_eu.php?number_kod=1.44' >Number = 1.44XX </a>   Stainless steel with Ni > = 2.5 % with   Mo but without   Nb and Ti</td></tr> <tr ><td><a href='number_steel_eu.php?number_kod=1.45' >Number = 1.45XX </a>   Stainless steels with special additions </td></tr> <tr ><td><a href='number_steel_eu.php?number_kod=1.46' >Number = 1.46XX </a>   Chemical resistant and high temp Ni alloys </td></tr> <tr ><td><a href='number_steel_eu.php?number_kod=1.47' >Number = 1.47XX </a>   Heat resistant steels with   Ni < 2.5 % </td></tr> <tr ><td><a href='number_steel_eu.php?number_kod=1.48' >Number = 1.48XX </a>   Heat resistant steels with   Ni > = 2.5 % </td></tr> <tr ><td><a href='number_steel_eu.php?number_kod=1.49' >Number = 1.49XX </a>   Materials with elevated temperature properties </td></tr> </table></td></tr> <tr><td align='center'><font size=+1><b>1.5XXX</b></td><td align='center'><b>Structural, pressure vessel and engineering steels</td><td> <table width='98%' border='0' cellpadding='4' cellspacing='0' bgcolor='#f0f0f0' align='center' > <tr><td><a href='number_steel_eu.php?number_kod=1.50'>Number = 1.50XX</a>   Mn-Si-Cu </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.51'>Number = 1.51XX</a>   Mn-Si,   Mn-Cr</td></tr> <tr><td>Number = 1.52XX   Mn-Cu,   Mn-V,   Si-V,   Mn-Si-V</td></tr> <tr><td>Number = 1.53XX   Mn-Ti,   Si-Ti</td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.54'>Number = 1.54XX</a>   Mo,   Nb,   Ti,   V,   W </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.55'>Number = 1.55XX</a>   B,   Mn-B   Mn < 1.65 % </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.56'>Number = 1.56XX</a>   Ni </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.57'>Number = 1.57XX</a>   Cr-Ni with   Cr < 1.0 % </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.58'>Number = 1.58XX</a>   Cr-Ni with   1.0 % =< Cr < 1.5 % </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.59'>Number = 1.59XX</a>   Cr-Ni with   1.5 % =< Cr < 2 % </td></tr> </table></td></tr> <tr><td align='center'><font size=+1><b>1.6XXX</b></td><td align='center'><b>Structural, pressure vessel and engineering steels</td><td> <table width='98%' border='0' cellpadding='4' cellspacing='0' bgcolor='#f0f0f0' align='center' > <tr><td>Number = 1.60XX   Cr-Ni with   2 % =< Cr < 3 % </td></tr> <tr><td>Number = 1.61XX   - </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.62'>Number = 1.62XX</a>   Ni-Si,   Ni-Mn,   Ni-Cu </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.63'>Number = 1.63XX</a>   Ni-Mo,   Ni-Mo-Mn,   Ni-Mo-Cu,   Ni-Mo-V,   Ni-Mn-V</td></tr> <tr><td>Number = 1.64XX - </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.65'>Number = 1.65XX</a>   Cr-Ni-Mo with   Mo < 0.4 % + Ni < 0.2 % </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.66'>Number = 1.66XX</a>   Cr-Ni-Mo with   Mo < 0.4 %   +   2.0 % =< Ni < 3.5 % </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.67'>Number = 1.67XX</a>   Cr-Ni-Mo with   Mo < 0.4 % + 3.5 % =< Ni < 5 %,   or   Mo >= 0.4 % </td></tr> <tr><td>Number = 1.68XX   Cr-Ni-V,   Cr-Ni-W,   Cr-Ni-V-W </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.69'>Number = 1.69XX</a>   Cr-Ni except groups 57 to 68 </td></tr> </table></td></tr> <tr><td align='center'><font size=+1><b>1.7XXX</b></td><td align='center'><b>Structural, pressure vessel and engineering steels</td><td> <table width='98%' border='0' cellpadding='4' cellspacing='0' bgcolor='#f0f0f0' align='center' > <tr><td><a href='number_steel_eu.php?number_kod=1.70'>Number = 1.70XX</a>   Cr,   Cr-B </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.71'>Number = 1.71XX</a>   Cr-Si,   Cr-Mn,   Cr-Mn-B,   Cr-Si-Mn </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.72'>Number = 1.72XX</a>   Cr-Mo with  Mo < 0.35 % ,   Cr-Mo-B</td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.73'>Number = 1.73XX</a>   Cr-Mo with   Mo >= 0.35 % </td></tr> <tr><td>Number = 1.74XX   - </td></tr> <tr><td>Number = 1.75XX   Cr-V with   Cr < 2.0 % </td></tr> <tr><td>Number = 1.76XX   Cr-V with   Cr >= 2.0 % </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.77'>Number = 1.77XX</a>   Cr-Mo-V </td></tr> <tr><td>Number = 1.78XX   - </td></tr> <tr><td>Number = 1.79XX   Cr-Mn-Mo,   Cr-Mn-Mo-V </td></tr> </table></td></tr><tr><td align='center'><font size=+1><b>1.8XXX</b></td><td align='center'><b>Structural, pressure vessel and engineering steels</td><td> <table width='98%' border='0' cellpadding='4' cellspacing='0' bgcolor='#f0f0f0' align='center' > <tr><td><a href='number_steel_eu.php?number_kod=1.80'>Number = 1.80XX</a>   Cr-Si-Mo,   Cr-Si-Mn-Mo,   Cr-Si-Mo-V,   Cr-Si-Mn-Mo-V </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.81'>Number = 1.81XX</a>   Cr-Si-V,   Cr-Mn-V,   Cr-Si-Mn-V </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.82'>Number = 1.82XX</a>   Cr-Mo-W,   Cr-Mo-W-V </td></tr> <tr><td>Number = 1.83XX   - </td></tr> <tr><td>Number = 1.84XX   Cr-Si-Ti,   Cr-Mn-Ti,   Cr-Si-Mn-Ti</td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.85'>Number = 1.85XX</a>   Nitriding steels</td></tr> <tr><td>Number = 1.86XX   - </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.87'>Number = 1.87XX</A>   Steels not for heat treatment by user </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.88'>Number = 1.88XX</a>   High strength weldable steels not intended for heat treatment by user </td></tr> <tr><td><a href='number_steel_eu.php?number_kod=1.89'>Number = 1.89XX</a>   High strength weldable steels not intended for heat treatment by user</td></tr> </table></td></tr> <tr><td align='center'><font size=+1><b>1.9XXX</b></td><td align='center'><b>Non-alloy Quality steels</td><td><table width='98%' border='0' cellpadding='2' cellspacing='0' bgcolor='#f0f0f0' align='center' > <tr><td>Number = 1.90XX   Base steels</td></tr> <tr><td>Number = 1.91XX   Quality steel (General structural steels with Rm < 500 MPa )</td></tr> <tr><td>Number = 1.92XX   Other structural steels (Not intended for heat treatment with Rm < 500 MPa )</td></tr><tr><td> Number = 1.93XX   Steels with average C < 0,12%   or   Rm < 400 MPa</td></tr><tr><td> Number = 1.94XX   Steels with average 0,12% =< C < 0,25%   or   400 MPa = < Rm < 500 MPa</td></tr><tr><td> Number = 1.95XX   Steels with average 0,25% =< C < 0,55%   or   500 MPa =< Rm < 700 MPa</td></tr><tr><td> Number = 1.96XX   Steels with average C >= 0,55%   or   Rm >= 700 MPa</td></tr><tr><td> Number = 1.97XX   Steels with higher P or S content</td></tr> </table> <tr><td align='center'><font size=+1><b>2.XXXX</b></td><td align='center'><b>Alloy<br></td><td>  <a href='number_steel_eu.php?number_kod=2.'>Number = 2.XXXX</a> </td></tr></td></tr></table></td></tr></table><center> <script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle" style="display:block; text-align:center;" data-ad-layout="in-article" data-ad-format="fluid" data-ad-client="ca-pub-6300528791853577" data-ad-slot="6167234827"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </center> <br><b>European Steel and Alloy Grades / Numbers <br>Steel classification according to EN 10027-2. Designation systems for steels. Steel numbers<br><br><hr size=5 width = '100%' color='#58a3c0'> </b><table width = '100%' cellspacing='0' cellpadding='2' border='0' bgcolor='#f0f0f0' bordercolor='#66CCCC'><tr> <td> <CENTER> European Steel and Alloy Grades / Numbers Searchable Database   ©   2011- 2024   All rights reserved.     <a class='anot' href='http://www.steelnumber.com/en/e_contact.php'><b>About us. 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