{"id":793,"date":"2020-06-07T22:41:48","date_gmt":"2020-06-07T17:11:48","guid":{"rendered":"http:\/\/www.resistantalloy.com\/?page_id=793"},"modified":"2020-08-06T15:25:22","modified_gmt":"2020-08-06T09:55:22","slug":"astm-b344-2","status":"publish","type":"page","link":"http:\/\/www.resistantalloy.com\/astm-b344-2\/","title":{"rendered":"ASTM B344 Manufacturer and Suppliers"},"content":{"rendered":"\t\t
(Standard Specification for Drawn or Rolled Iron-Chromium-Aluminium Alloys for Electrical\u00a0Heating Elements)<\/p>
Scope<\/strong><\/p> This specification covers annealed, drawn, or rolled shapes for electrical heating and resistance purposes of alloys conisting mainly of iron, chromium, and aluminum as detailed in table. Significance and Use<\/strong><\/p> This specification on iron-chromium-aluminium alloys contains the requirements for chemistry, electrical resistance, mechanical properties, resistance change with temperature, and packaging. Chemical Requirements<\/strong><\/p> The alloys shall conform to the requirements as to chemical composition prescribed in Table. Physical Requirements<\/strong><\/p> The material shall be thoroughly and uniformly annealed. \u00a0<\/p> Table – Chemical Requirements<\/strong><\/p> \u00a0<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t Material\u00a0<\/p><\/td> Unalloyed steel\u00a0<\/p><\/td> C steel soft\u00a0<\/p><\/td> C steel\u00a0<\/p><\/td> C steel\u00a0<\/p><\/td> Tool steel\u00a0<\/p><\/td> CrMo steel\u00a0<\/p><\/td> Cr- steel\u00a0<\/p><\/td> CrNi steel\u00a0<\/p><\/td> CrNiMo steel\u00a0<\/p><\/td> Heat-resist. Steel\u00a0<\/p><\/td> Heat-resist. Steel\u00a0<\/p><\/td> Copper\u00a0<\/p><\/td> Brass\u00a0<\/p><\/td> Bronze\u00a0<\/p><\/td> Nickel\u00a0<\/p><\/td> Al alloy\u00a0<\/p><\/td> Aluminium\u00a0<\/p><\/td><\/tr> Material number\u00a0<\/p><\/td> 1.0338<\/p><\/td> 1.1248<\/p><\/td> 1.1274<\/p><\/td> 1.2003<\/p><\/td> 1.2379<\/p><\/td> 1.4031Mo\u00a0<\/p><\/td> 1.4034 (1.2083)\u00a0<\/p><\/td> 1.431<\/p><\/td> 1.4404<\/p><\/td> 1.4767<\/p><\/td> 1.4828<\/p><\/td> 2.007<\/p><\/td> 2.0321<\/p><\/td> 2.102<\/p><\/td> 2.4068<\/p><\/td> 3.0205<\/p><\/td><\/tr> DIN\/EN AISI UNS\u00a0<\/p><\/td> DC04 1008 A 620\u00a0<\/p><\/td> C75S lC+MA 1075 G 10750\u00a0<\/p><\/td> C100S+QT 1095 G 10950\u00a0<\/p><\/td> 75Cr1+QT 1075 G 10780\u00a0<\/p><\/td> X155CrVMo12-1 D2\u00a0<\/p><\/td> X39CrMo14-1 Etwa 420\u00a0<\/p><\/td> X46Cr13 420 S 42000\u00a0<\/p><\/td> X12CrNi17-7 301 S 30100\u00a0<\/p><\/td> X2CrNiMo17-12-2 316l S 31603\u00a0<\/p><\/td> X8CrAl20-5\u00a0<\/p><\/td> X15CrNiSi20-12 309 S 30900\u00a0<\/p><\/td> SE-Cu58\/CW021A C 10300\u00a0<\/p><\/td> CuZn 37 C 27200\u00a0<\/p><\/td> CuSn6\/CW452K C 51900\u00a0<\/p><\/td> lC-Ni 99.2% N 02201\u00a0<\/p><\/td> EN-AW 8079\u00a0<\/p><\/td> EN-AW 1200 A91200\u00a0<\/p><\/td><\/tr> Dimensions\u00a0<\/p><\/td> Widths Thicknesses Width tolerance Thickness tole-rance\u00a0<\/p><\/td> 150+305 0.025-1.00mm DIN EN 10 140\u00a0<\/p><\/td> 300-305 mm 0.20-3.00mm\u00a0<\/p><\/td> 6 – 305 mm 0.02-2.00 mm B 2 T 3\u00a0<\/p><\/td> 350 + 610 mm 0.60 \u2013 5.03 mm -T 3\u00a0<\/p><\/td> ca. 630x1000mm 2.3-5.5 mm -0\/+0.5mm\u00a0<\/p><\/td> 70-310 0.076-1.50 EN 9445 T1-T3\u00a0<\/p><\/td> 320 mm 1.00 – 3.00 mm EN 10258 R T 3\u00a0<\/p><\/td> 10 – 1000 mm 0.003 – 3.00 mm EN 10258 R T 3 (some EN10258)\u00a0<\/p><\/td> Approx. 300 mm 0.05 – 0.50 EN 10258 R EN 10258 (some T3)\u00a0<\/p><\/td> Approx. 300 mm 0.03 \u2013 0.20 mm EN 10 258\u00a0<\/p><\/td> Approx. 300 mm 0.15 \u2013 0.30 mm EN 10 258\u00a0<\/p><\/td> 150 + 305 mm 0.01 \u2013 0.50 mm +\/- 10%\u00a0<\/p><\/td> 150 + 305 mm 0.01 – 1.00 mm DIN 1791 T 3\u00a0<\/p><\/td> 150 + 305 mm 0.05 \u2013 0.30 mm\u00a0<\/p><\/td> 150 + 320 mm 0.01 \u2013 0.30 mm\u00a0<\/p><\/td> 150 mm 0.025 mm\u00a0<\/p><\/td> 150 mm 0.05 \u2013 0.20 mm\u00a0<\/p><\/td><\/tr> Surface\u00a0<\/p><\/td> Bright\u00a0<\/p><\/td> Bright\u00a0<\/p><\/td> White-polished\u00a0<\/p><\/td> Bright\u00a0<\/p><\/td> Scaled\u00a0<\/p><\/td> White-polished\u00a0<\/p><\/td> Ground\u00a0<\/p><\/td> 2H\u00a0<\/p><\/td> 2R\/2H\u00a0<\/p><\/td> Bright\u00a0<\/p><\/td> Bright\u00a0<\/p><\/td> Bright\u00a0<\/p><\/td> Bright\u00a0<\/p><\/td> Bright\u00a0<\/p><\/td> Bright\u00a0<\/p><\/td> Bright\u00a0<\/p><\/td> Bright\u00a0<\/p><\/td><\/tr> Edge form\u00a0<\/p><\/td> Cut\u00a0<\/p><\/td> Cut\u00a0<\/p><\/td> Cut (in a width of 12.7 mm. rounded from a thickness of 0.25 mm)\u00a0<\/p><\/td> Cut\u00a0<\/p><\/td> Rolled edge\u00a0<\/p><\/td> Cut\u00a0<\/p><\/td> Cut\u00a0<\/p><\/td> Cut\u00a0<\/p><\/td> Cut\u00a0<\/p><\/td> Cut\u00a0<\/p><\/td> Cut\u00a0<\/p><\/td> Cut\u00a0<\/p><\/td> Cut\u00a0<\/p><\/td> Cut\u00a0<\/p><\/td> Cut\u00a0<\/p><\/td> Cut\u00a0<\/p><\/td> Cut\u00a0<\/p><\/td><\/tr> Straightness\u00a0<\/p><\/td> Normal\u00a0<\/p><\/td> Normal\u00a0<\/p><\/td> Normal\u00a0<\/p><\/td> Normal\u00a0<\/p><\/td> Normal\u00a0<\/p><\/td> SR\u00a0<\/p><\/td> Normal\u00a0<\/p><\/td> DIN 1791\u00a0<\/p><\/td> Evenness\u00a0<\/p><\/td> Normal\u00a0<\/p><\/td> Extra precise\u00a0<\/p><\/td> Extra precise\u00a0<\/p><\/td> 0.2% of the strip width\u00a0<\/p><\/td> P2\/P3\u00a0<\/p><\/td> Extra precise\u00a0<\/p><\/td> Wave height. max. 1 mm\u00a0<\/p><\/td> DIN\u00a0<\/p><\/td> DIN 1791\u00a0<\/p><\/td> Rolled condition\u00a0<\/p><\/td> Hard-rolled\u00a0<\/p><\/td> Hard-rolled\u00a0<\/p><\/td> Hardened and tempered (H+T)\u00a0<\/p><\/td> Hardened and tempered (H+T)\u00a0<\/p><\/td> Hardened and tempered (H+T)\u00a0<\/p><\/td> Hardened and tempered (H+T)\u00a0<\/p><\/td> Hardened and tempered (H+T)\u00a0<\/p><\/td> Cold-rolled \u2013 spring-tempered\u00a0<\/p><\/td> Cold-rolled. an-nealed or spring-tempered\u00a0<\/p><\/td> Hard-rolled\u00a0<\/p><\/td> Annealed\u00a0<\/p><\/td> Hard-rolled\u00a0<\/p><\/td> Spring-tempered\u00a0<\/p><\/td> Spring-tempered\u00a0<\/p><\/td> Hard or semi-hard\u00a0<\/p><\/td> Hard-rolled\u00a0<\/p><\/td> Hard-rolled\u00a0<\/p><\/td><\/tr> Tensile strength\/ hardness\u00a0<\/p><\/td> >590 N\/mm\u00b2\u00a0<\/p><\/td> 490-650 N\/mm\u00b2\u00a0<\/p><\/td> See tensile strengths table\u00a0<\/p><\/td> HRC 48-50\u00a0<\/p><\/td> HRC 59-61\u00a0<\/p><\/td> 1700-1950 N\/ mm\u00b2\u00a0<\/p><\/td> HRC 50-54\u00a0<\/p><\/td> See tensile strengths table\u00a0<\/p><\/td> 540-750 N\/mm\u00b2 (Annealed) >1100 N\/mm\u00b2 (Hard)\u00a0<\/p><\/td> Approx.1000 N\/ mm\u00b2\u00a0<\/p><\/td> 540 \u2013 750 N\/mm\u00b2\u00a0<\/p><\/td> >360 N\/mm\u00b2\u00a0<\/p><\/td> See tensile strengths table\u00a0<\/p><\/td> HV 160-190\u00a0<\/p><\/td> Approx. 500-1000 N\/mm\u00b2\u00a0<\/p><\/td> >180 N\/mm\u00b2\u00a0<\/p><\/td> > 150 N\/mm\u00b2\u00a0<\/p><\/td><\/tr> Material \u2013 composition\u00a0<\/p><\/td> C:\u00a0<\/p><\/td> max.0.08%\u00a0<\/p><\/td> max. 0.65-0.80%\u00a0<\/p><\/td> max. 1.05%\u00a0<\/p><\/td> 0.70-0.80%\u00a0<\/p><\/td> 1.50-1.60%\u00a0<\/p><\/td> Approx. 0.39%\u00a0<\/p><\/td> 0.40 – 0.50%\u00a0<\/p><\/td> max. 0.15%\u00a0<\/p><\/td> max. 0.03%\u00a0<\/p><\/td> max. 0.05%\u00a0<\/p><\/td> max. 0.20%\u00a0<\/p><\/td> max. 0.02%\u00a0<\/p><\/td> Si:\u00a0<\/p><\/td> 0.15-0.30%\u00a0<\/p><\/td> 0.15-0.30%\u00a0<\/p><\/td> 0.25-0.50%\u00a0<\/p><\/td> 0.35-0.40%\u00a0<\/p><\/td> max. 0.40%\u00a0<\/p><\/td> 0.30%<\/p><\/td> max. 1.5%\u00a0<\/p><\/td> max. 1.0%\u00a0<\/p><\/td> max. 0.50%\u00a0<\/p><\/td> 1.5-2.5%\u00a0<\/p><\/td> –<\/p><\/td> max. 0.1%\u00a0<\/p><\/td> 0.05-0.3%\u00a0<\/p><\/td> Si+Fe max. 1%\u00a0<\/p><\/td><\/tr> Mn:\u00a0<\/p><\/td> max. 0.4%\u00a0<\/p><\/td> 0.30-0.45%\u00a0<\/p><\/td> 0.30-0.45%\u00a0<\/p><\/td> 0.60-0.80%\u00a0<\/p><\/td> 0.30-0.60%\u00a0<\/p><\/td> Approx. 0.60%\u00a0<\/p><\/td> 0.35%<\/p><\/td> max. 2.0%\u00a0<\/p><\/td> max. 2.0%\u00a0<\/p><\/td> max. 2.0%\u00a0<\/p><\/td> max. 0.3%\u00a0<\/p><\/td> max. 0.05%\u00a0<\/p><\/td><\/tr> P:\u00a0<\/p><\/td> max. 0.03%\u00a0<\/p><\/td> max. 0.02%\u00a0<\/p><\/td> max. 0.02%\u00a0<\/p><\/td> max. 0.03 %\u00a0<\/p><\/td> max. 0.03%\u00a0<\/p><\/td> max. 0.025%\u00a0<\/p><\/td> max. 0.045%\u00a0<\/p><\/td> max. 0.045%\u00a0<\/p><\/td> max. 0.045%\u00a0<\/p><\/td> 0.002-0.007%\u00a0<\/p><\/td> 0.01-0.4%\u00a0<\/p><\/td> S:\u00a0<\/p><\/td> max. 0.03%\u00a0<\/p><\/td> max. 0.02%\u00a0<\/p><\/td> max. 0.02%\u00a0<\/p><\/td> max. 0.03%\u00a0<\/p><\/td> max 0.02%\u00a0<\/p><\/td> max. 0.01%\u00a0<\/p><\/td> max. 0.03%\u00a0<\/p><\/td> max. 0.03%\u00a0<\/p><\/td> max. 0.03%\u00a0<\/p><\/td> max. 0.005%\u00a0<\/p><\/td> Cr:\u00a0<\/p><\/td> max. 0.40%\u00a0<\/p><\/td> max. 0.40%\u00a0<\/p><\/td> 0.30-0.40%\u00a0<\/p><\/td> 11-12%\u00a0<\/p><\/td> Approx. 13.5%\u00a0<\/p><\/td> 13.50%<\/p><\/td> 16-18%\u00a0<\/p><\/td> 16.50-18.50%\u00a0<\/p><\/td> 19.0 \u2013 22.0 %\u00a0<\/p><\/td> 19.0-21.0%\u00a0<\/p><\/td> Ni:<\/p><\/td> –<\/p><\/td> 7-9%\u00a0<\/p><\/td> 10.0-13.0%\u00a0<\/p><\/td> max. 0.30%\u00a0<\/p><\/td> 11.0-13.0%\u00a0<\/p><\/td> max. 0.2%\u00a0<\/p><\/td> > 99.2%\u00a0<\/p><\/td> Mo:\u00a0<\/p><\/td> 0.7-0.9%\u00a0<\/p><\/td> ca. 1%\u00a0<\/p><\/td> –<\/p><\/td> max. 0.80%\u00a0<\/p><\/td> 2.0-2.5%\u00a0<\/p><\/td> Al:\u00a0<\/p><\/td> –<\/p><\/td> 5.50-6.50%\u00a0<\/p><\/td> balance\u00a0<\/p><\/td> >99.0%\u00a0<\/p><\/td><\/tr> Cu:\u00a0<\/p><\/td> –<\/p><\/td> >99.95%\u00a0<\/p><\/td> 62-64%\u00a0<\/p><\/td> balance\u00a0<\/p><\/td> max. 0.25%\u00a0<\/p><\/td> max. 0.05%\u00a0<\/p><\/td> max. 0.05%\u00a0<\/p><\/td><\/tr> Pb:\u00a0<\/p><\/td> –<\/p><\/td> max. 0.005%\u00a0<\/p><\/td> max. 0.1%\u00a0<\/p><\/td> max. 0.02%\u00a0<\/p><\/td> Sn:\u00a0<\/p><\/td> –<\/p><\/td> 5.5-7.0%\u00a0<\/p><\/td> Zn:\u00a0<\/p><\/td> –<\/p><\/td> balance\u00a0<\/p><\/td> max. 0.2%\u00a0<\/p><\/td> max.0.1%\u00a0<\/p><\/td> max. 0.1%\u00a0<\/p><\/td><\/tr> Fe:\u00a0<\/p><\/td> balance\u00a0<\/p><\/td> balance\u00a0<\/p><\/td> balance\u00a0<\/p><\/td> balance\u00a0<\/p><\/td> balance\u00a0<\/p><\/td> balance\u00a0<\/p><\/td> balance\u00a0<\/p><\/td> balance\u00a0<\/p><\/td> balance\u00a0<\/p><\/td> balance\u00a0<\/p><\/td> balance\u00a0<\/p><\/td> max. 0.1%\u00a0<\/p><\/td> max. 0.4%\u00a0<\/p><\/td> 0.7-1.3%\u00a0<\/p><\/td> Si+Fe max. 1%\u00a0<\/p><\/td><\/tr> N:\u00a0<\/p><\/td> max. 0.01%\u00a0<\/p><\/td> Other:\u00a0<\/p><\/td> V: 0.7-0.9%\u00a0<\/p><\/td> –<\/p><\/td> Traces of Zr+Y+Hf\u00a0<\/p><\/td> max. 0.03%\u00a0<\/p><\/td> max. 0.2%\u00a0<\/p><\/td> Ti: 0.01-0.1%\u00a0<\/p><\/td> max. 0.15%\u00a0<\/p><\/td> max. 0.15%\u00a0<\/p><\/td><\/tr><\/tbody><\/table> \u00a0<\/p><\/div><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t Unalloyed, hard-rolled steel, mat. no. 1.0338 (DC04)<\/strong> Fields of application<\/strong><\/p> Typical application<\/p><\/td><\/tr> \u00a0\u00a0\u00a0FeCrAl 125<\/strong><\/p><\/td> \u00a0\u00a0\u00a0Heating elements\u00a0operating out in the open, tubes quartz, emergent heaters, rheostats and in general where the \u00a0\u00a0\u00a0temperature on the element is under 1100\u00b0C<\/p><\/td><\/tr> \u00a0\u00a0\u00a0FeCrAl 135<\/strong><\/p><\/td> \u00a0\u00a0\u00a0Hot plates, irons, electric furnaces, cigarette lighters and fuel burners elements,resistor applications and heavy relay \u00a0\u00a0\u00a0switches, etc. Good for continuous element operating temperatures up to 1250\u00b0C.<\/p><\/td><\/tr> \u00a0\u00a0\u00a0FeCrAl 140<\/strong><\/p><\/td> \u00a0\u00a0\u00a0Heating elements\u00a0of industrial furnaces where a high head rate is necessary. A very long life time of the elements \u00a0\u00a0\u00a0operating at high temperatures up to 1300\u00b0C.<\/p><\/td><\/tr> \u00a0\u00a0\u00a0FeCrAl 145<\/strong><\/p><\/td> \u00a0\u00a0\u00a0Electric furnaces for ceramic, chemical and metallurgic industries, and for all applications where it is necessary to \u00a0\u00a0\u00a0apply very high temperature of use. Long-life for continuous operating temperatures up to 1400\u00b0C.<\/p><\/td><\/tr> \u00a0\u00a0\u00a0FeCrAl Y<\/strong><\/p><\/td> \u00a0\u00a0\u00a0High-temperature industrial furnaces with an element temperature up to 1350\u00b0C. Electric heating appliances, ceran \u00a0\u00a0\u00a0hotplates, tube elements, radiant heaters, fans, toasters, burner heads and covers.<\/p><\/td><\/tr> \u00a0\u00a0\u00a0FeCrAl H<\/strong><\/p><\/td> \u00a0\u00a0\u00a0High temperature industrial and laboratory furnaces, furnaces for electronic industries, diffusion furnaces, resistance \u00a0\u00a0\u00a0elements, radiant heaters, ceramic kilns, etc. Operating temperatures is under 1400\u00b0C.<\/p><\/td><\/tr><\/tbody><\/table> AUSTENITIC ALLOYS (NiCr)\u00a0Nickel-Chromium<\/strong><\/p> Typical Applications:<\/strong><\/p> Typical application<\/p><\/td><\/tr> \u00a0\u00a0\u00a0Ni80Cr20<\/strong><\/p><\/td> \u00a0\u00a0\u00a0Heating batteries, electric cooking equipment, precision resistors.<\/p><\/td><\/tr> \u00a0\u00a0\u00a0Ni70Cr30<\/strong><\/p><\/td> \u00a0\u00a0\u00a0Industrial furnaces (up to 1250\u00b0C) with alternating oxidizing\/ reducing atmosphere, precision resistors<\/p><\/td><\/tr> \u00a0\u00a0\u00a0Ni60Cr15<\/strong><\/p><\/td> \u00a0\u00a0\u00a0Heating elements\u00a0operating at a temperature up to 1150\u00b0C, which include all sorts of heating elements and \u00a0\u00a0\u00a0resistances (toasters elements, potentiometer resistances and other household and industrial appliances).<\/p><\/td><\/tr> \u00a0\u00a0\u00a0Ni40Cr20<\/strong> \u00a0\u00a0Heating appliances (up to 1050\u00b0C), furnaces in carburising or semi-reducing atmosphere,\u00a0heating elements\u00a0of \u00a0\u00a0cooking equipment.<\/p><\/td><\/tr><\/tbody><\/table><\/div><\/div><\/div><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
This standard does not purport to address all of the safety concerns. If any, associated with its use. It is the responsibility of the user of this standard to become famaliar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product\/material provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.<\/p>
Determination of properties is not required to for routine acceptance of matrial unless specified by the purchaser.<\/p>
Samples for Chemical Analysis<\/em>\u00a0– Specimens for chemical analysis may be taken from either the melt or from a sample of finished wire that is representative of the lot.
Chemical Analysis<\/em>\u00a0– The chemical analysis shall be made in accordance with Test Methods A 751<\/p>
Wire shall conform to the following elongation requirements<\/p>
(250 mm) min, %<\/div><\/td><\/tr>0.0035 in. (No. 39 Awg) (0.089 mm) and larger<\/td> 0.0031 to 0.0020 in. (Nos 40 to 44 Awg) (0.079 to 0.015 mm)<\/td> Class<\/td> Material Information\n<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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Unalloyed steels are very cost-effective materials for simple parts that don’t need to be corrosion-resistant and are not subjected to mechanical strains. With a tensile strength of at least 590 N\/mm\u00b2 (+C590), the products stocked at h+s are easy to blank but can only be dished or deep-drawn to a limited extent. Due to thickness tolerances according to EN 10 140, this material is only suitable for shim parts that do not have high precision requirements.
Unhardened, hardenable spring steel strip, mat. no. 1.1248<\/strong>
With a carbon content of 0.75%, material 1.1248 is frequently used as an alloy for springs. In an unhardened state, this steel is very easy to stamp and form; however, it must then be hardened to achieve a high tensile strength and hardness.
Hardened spring steel strip, mat. no. 1.1274
<\/strong>With a carbon content of over 1%, this material is very well suited for feeler gauge strips and precision foils as well as highly stressed springs that are not subject to any corrosion requirements. In particularly igh-quality designs, as the only carbon steel, 1.1274 is suitable for shock absorbers and flapper valves.
Hardened tool steel, mat. no. 1.2003<\/strong>
The addition of a small amount of chromium gives this material high wear-resistance and a better through-hardening in large cross-sections. With a Rockwell hardness of 47\u201351 HRC, this material is also suitable for smaller tools.
Hardened, rust-resistant special spring steel strip 1.4031 (AISI 420)
<\/strong>As a result of the alloying with 13% chrome and 1% molybdenum, this alloy is corrosion-resistant against damp air, water vapour and water, but is not sufficiently resistant to chloride ions and acids. The advantages of this steel lie in its good wear-resistance and minimum internal tensions. With a tensile strength of 1700\u20131950 N\/mm2, this material is ideal for springs, gauges, tools and knives. In a particularly high-quality design, this material is also suitable for flapper valves.
Hardened, stainless tool steel, mat. no. 1.4034 (1.2083)<\/strong>\u00a0As a result of the alloying with 13% chromium, this martensitic chrome steel is corrosion-resistant against damp air, water vapour and water, but is not sufficiently resistant to chloride ions and acids. This material has a lower corrosion-resistance compared to 1.4310. The advantages of this steel lie in its good wear-resistance and minimum internal tensions. With a Rockwell hardness of 50\u201354 HRc, this material is ideal for gauges, tools and machine cutting tools in the food industry and scalpels. Materials 1.4034 and 1.2083 are only marginally different in terms of carbon content.
Cold-rolled, stainless spring steel strip, mat. no. 1.4310<\/strong>
As a result of the alloying with 17% chrome and 7% nickel, this material is particularly corrosion-resistant. Cold-rolling gives this material a high tensile strength. It has a significantly higher strength than 1.4301. As a result, material 1.4310 is very well suited for stainless-steel precision gauge strips and precision foils. This material is only weakly magnetic and therefore cannot be held in place on magnetic clamping plates during grinding. When chamfering or bending material 1.4310, please be aware that folds should always run transversely to the roll direction. The roll direction must also be observed when using the material as a flat spring.
Stainless precision steel strip 1.4404<\/strong>
Due to its higher content of nickel and molybdenum, this material is significantly more resistant to corrosion than 1.4301 or 1.4310. In an annealed state, this material has very good deep-drawing properties due to the high nickel content. In a hard-rolled state, this material can be used for springs in corrosive environments. Similarly to 1.4310, 1.4404 becomes slightly magnetisable as a result of hard-rolling; however, due to its higher nickel content, its magnetism is less than in 1.4310.
Heat-resistant ferritic chrome steel, mat. no. 1.4767<\/strong>
By adding approximately 6% aluminium and traces of yttrium and hafnium, this ferritic steel is incredibly heat-resistant up to 1200\u00b0C. We stock this material in a hard-rolled state but it becomes soft during the first heating. This alloy is used for heating conductors in hobs, sensors and in flue gas cleaning. Ferritic steels can be magnetised.
Heat-resistant austenitic steel, mat. no. 1.4828<\/strong>
This material is heat-resistant to 1000\u00b0C as a result of its high chromium, nickel and silicon content. We stock this material in an annealed state.
Hard-rolled copper strip, mat. no. 2.0070 (SE-Cu58)
<\/strong>With a copper content of at least 99.95% and low oxygen and phosphorous content, the SE-Cu58 alloy is better quality than the generally used copper types, E-Cu (UNS C11000) and SF-Cu (UNS C12200). This material is used in general electrical engineering for cable straps and connectors, transformer coils, semiconductors and sheet metal parts (e.g. for seals).
Hard-rolled brass strip, mat. no. 2.0321<\/strong>
Composed of 63% copper and 37% zinc, this material is the standard product for spring-tempered, rolled brass. This material is not magnetic. Observe the roll direction when using the brass as a flat spring or when chamfering or bending brass.
Hard-rolled bronze strip, mat. no. 2.1020 (CuSn6)<\/strong>
With zinc content of 6%, the bronze alloy CuSn6 is the most frequently used type of bronze. Examples of typical applications are connectors, contact pins and general sheet metal parts and springs that require good electrical conductivity. Unlike brass, bronze can also be used in vacuum technology.
Pure nickel, mat. no. 2.4068 (Ni 99.2)<\/strong>
Pure nickel is very corrosion-resistant in alkaline media in particular, even at temperatures above 300\u00b0C. It is used in the chemical apparatus construction and pharmaceuticals industries. As nickel is resistant to chemical substances, the absolute purity of the product being processed is ensured. In thicknesses from 0.01 to 0.05 mm, nickel is available in a hard-rolled state; in thicknesses from 0.10 to 0.30 mm, it is available in a semi-hard state
Aluminium alloy EN-AW 8079<\/strong>
Due to its low specific weight and good formability, aluminium can be used for a wide range of applications. EN-AW contains iron and silicon, giving it a higher tensile strength. This allow is therefore used for aluminium foils of a thickness of up to around 0.05 mm.
Pure aluminium, mat. no. 3.0502 (Al 99.0%)<\/strong>
Due to its relatively good thermal conductivity, pure aluminium is also used for heat exchangers (however, alloys 3003 or 6063 should be used in soldered heat exchangers). As a result of its high electrical conductivity, aluminium can also be used in the electronics industry and, thanks to its high reflective properties, in lamp reflectors too.<\/p><\/div><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\tTechnical<\/h3>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
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\u00a0\u00a0\u00a0Ni30Cr20
\u00a0\u00a0\u00a0Ni20Cr25<\/strong><\/p><\/td>