51CrV4 \/ 1.8159 Spring Steel<\/b><\/strong><\/h1>\n![\"51CrV4](\"https:\/\/waldunsteel.com\/wp-content\/uploads\/2021\/08\/51CrV4-1.8159-Spring-Steel.jpg\")
<\/p>\n
51CrV4 \/ 1.8159 Spring Steel<\/b><\/strong>\u00a0<\/b><\/strong>is chromium vanadium type spring steel. It\u2019s a similar alloy steel to 5150 steel with small, but effective, vanadium addition, to import greater hardness. \u00a051CrV4 \/ 1.8159 Spring Steel\u00a0has low distortion properties and is easily heat treated. 51CrV4 \/ 1.8159 Spring Steel grade is suitable for oil hardening and tempering.<\/p>\n51CrV4 \/ 1.8159 Spring Steel is usually supplied in the as rolled condition. When used in the oil hardened and tempered condition \u00a051CrV4 \/ 1.8159 Spring Steel\u00a0combines spring characteristics with excellent resistance to both abrasion and shock. Hardened \u00a051CrV4 \/ 1.8159 Spring Steel\u00a0offers excellent toughness and shock resistance which make it a suitable alloy spring steel for parts exposed to stress, vibration and shock.<\/p>\n
51CrV4 \/ 1.8159 Spring Steel<\/strong>\u00a0<\/strong>Supply Range<\/strong><\/h2>\n51CrV4 \/ 1.8159 Spring Steel Round Bar: diameter 8mm \u2013 1000mm
\n51CrV4 \/ 1.8159 Spring Steel Square Bar: 20mm \u2013 500mm
\nSurface Finish: Black, Rough Machined, Turned or as per given requirements.<\/p>\n
51CrV4 \/ 1.8159 Spring Steel<\/strong>\u00a0<\/strong>Specification and Relevant Standards<\/strong><\/h2>\n\n\n\nCountry<\/td>\n USA<\/td>\n BS<\/td>\n Japan<\/td>\n China<\/td>\n<\/tr>\n \nStandard<\/td>\n ASTM A29<\/td>\n EN 10083<\/td>\n JIS G4801<\/td>\n GB\/T 3077<\/td>\n<\/tr>\n \nGrades<\/td>\n 6150<\/td>\n 1.8159\/51CrV4<\/td>\n SUP 10<\/td>\n 50CrVA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n51CrV4 \/ 1.8159 Spring Steel<\/strong>\u00a0<\/strong>Chemical Composition per EN 10083-3 (Spring Steel)<\/strong><\/h2>\n\n\n\nGRADE<\/b><\/strong><\/td>\nNUMBER<\/b><\/strong><\/td>\nC<\/b><\/strong><\/td>\nSi<\/b><\/strong><\/td>\nMn<\/b><\/strong><\/td>\nP<\/b><\/strong><\/td>\nS<\/b><\/strong><\/td>\nCr<\/b><\/strong><\/td>\nV<\/b><\/strong><\/td>\n<\/tr>\n\n51CrV4<\/b><\/strong><\/td>\n1.8159 <\/b><\/strong><\/td>\n0.47-0.55<\/td>\n \u2264 0.40<\/td>\n 0.70-1.10<\/td>\n \u2264 0.025<\/td>\n \u2264 0.025<\/td>\n 0.90-1.20<\/td>\n 0.10-0.25<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n51CrV4 \/ 1.8159 Spring Steel<\/strong>\u00a0<\/strong>Mechanical Properties<\/strong><\/h2>\n\n\n\nProperties<\/td>\n \u00a0Conditions<\/td>\n<\/tr>\n \nT\u00a0(\u00b0C)<\/td>\n Treatment<\/td>\n<\/tr>\n \nDensity\u00a0(\u00d71000 kg\/m3)<\/td>\n 7.7-8.03<\/td>\n 25<\/td>\n <\/td>\n<\/tr>\n \nPoisson\u2019s Ratio<\/td>\n 0.27-0.30<\/td>\n 25<\/td>\n <\/td>\n<\/tr>\n \nElastic Modulus\u00a0(GPa)<\/td>\n 190-210<\/td>\n 25<\/td>\n <\/td>\n<\/tr>\n \nTensile Strength\u00a0(Mpa)<\/td>\n 667.4<\/td>\n 25<\/td>\n annealed at 815\u2103<\/td>\n<\/tr>\n \nYield Strength\u00a0(Mpa)<\/td>\n 412.3<\/td>\n<\/tr>\n \nElongation\u00a0(%)<\/td>\n 23.0<\/td>\n<\/tr>\n \nReduction in Area\u00a0(%)<\/td>\n 48.4<\/td>\n<\/tr>\n \nHardness\u00a0(HB)<\/td>\n 197<\/td>\n 25<\/td>\n annealed at 815\u2103<\/td>\n<\/tr>\n \nImpact Strength\u00a0(J)<\/td>\n 27.4<\/td>\n 25<\/td>\n annealed at 815\u2103<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nForging of Material 51CrV4 \/ 1.8159 Spring Steel<\/strong><\/h2>\n51CrV4 \/ 1.8159 Spring Steel\u00a0could be forged between 2150 and 1600\u00baF (1175 and 870\u00baC.) The alloy should be slow cooled after forging or transferred to a furnace around the \u2018finishing\u2019 temperature. Do not forge below 840\u00b0C.<\/p>\n
51CrV4 \/ 1.8159 Spring Steel<\/strong>\u00a0<\/strong>Heat Treatment<\/strong><\/h2>\n\n- Preheat:<\/li>\n<\/ul>\n
1200-1250F (650-675\u00baC), equalize.<\/p>\n
\n- Annealing:<\/li>\n<\/ul>\n
1100-1300F (595-740\u00baC), hold 2 hours, air cool. As with 5150 alloy, the microstructure for this 51CrV4 \/ 1.8159 Spring Steel\u00a0to give optimum machinability is one of coarse lamellar pearlite to coarse spheroidite.<\/p>\n
\n- Normalizing:<\/li>\n<\/ul>\n
A nominal normalizing temperature for the 51CrV4 \/ 1.8159 Spring Steel\u00a0is 1650\u00baF (900\u00baC.) This treatment is followed by air cooling.<\/p>\n
\n- Straightening:<\/li>\n<\/ul>\n
Best done warm 400-800F (205-425\u00baC).<\/p>\n
\n- High Heat:<\/li>\n<\/ul>\n
1550-1650F (845-900\u00baC), soak 10 to 30 minutes. For vacuum hardening, use the high side of the high heat range and soak times.<\/p>\n
\n- Quenching:<\/li>\n<\/ul>\n
Oil quench to hand warm, 150F (65\u00baC). Temper 51CrV4 \/ 1.8159 Spring Steel\u00a0immediately. Note vacuum furnaces must have oil quench capability.<\/p>\n
\n- Tempering:<\/li>\n<\/ul>\n
Tempering at 400-1200 (205-650\u00baC) for 1 hour per inch (25mm) of thickness at temperature is recommended. (2 hours min.). Air cool to room temperature. Tempering of the 51CrV4 \/ 1.8159 Spring Steel\u00a0will be between 400-600\u00b0C for most applications.<\/p>\n
Machinability of<\/strong>\u00a051CrV4 \/ 1.8159 Spring Steel<\/strong><\/h2>\n51CrV4 \/ 1.8159 Spring Steel is readily machined from a coarse pearlite to a coarse spheroidite microstructure. The machinability rating of 51CrV4 \/ 1.8159 Spring Steel\u00a0is 59.<\/p>\n
Welding of 51CrV4 \/ 1.8159 Spring Steel<\/strong>\u00a0<\/strong>Materials<\/strong><\/h2>\n51CrV4 \/ 1.8159 Spring Steel can be welded, however, preheating and post weld stress relieving have to be performed for welding this steel.<\/p>\n
Welding of 51CrV4 \/ 1.8159 Spring Steel\u00a0should be carried out in the annealed condition, not on hardened and tempered material.<\/p>\n
Application of 51CrV4 \/ 1.8159 Spring Steel<\/strong><\/h2>\nIt\u2019s commonly used in heavily stressed machinery parts including shafts, gears, pinions and also in hand tool components. 51CrV4 \/ 1.8159 Spring Steel\u00a0is also widely in the motor vehicle industry 51CrV4 \/ 1.8159 Spring Steel\u00a0is suitable for many general engineering applications that require high tensile strength and toughness.<\/p>\n<\/div><\/section><\/div>
\n<\/div><\/section>
\nLatest Products<\/h3>
<\/p>\n51CrV4 \/ 1.8159 Spring Steel is usually supplied in the as rolled condition. When used in the oil hardened and tempered condition \u00a051CrV4 \/ 1.8159 Spring Steel\u00a0combines spring characteristics with excellent resistance to both abrasion and shock. Hardened \u00a051CrV4 \/ 1.8159 Spring Steel\u00a0offers excellent toughness and shock resistance which make it a suitable alloy spring steel for parts exposed to stress, vibration and shock.<\/p>\n
51CrV4 \/ 1.8159 Spring Steel<\/strong>\u00a0<\/strong>Supply Range<\/strong><\/h2>\n51CrV4 \/ 1.8159 Spring Steel Round Bar: diameter 8mm \u2013 1000mm
\n51CrV4 \/ 1.8159 Spring Steel Square Bar: 20mm \u2013 500mm
\nSurface Finish: Black, Rough Machined, Turned or as per given requirements.<\/p>\n
51CrV4 \/ 1.8159 Spring Steel<\/strong>\u00a0<\/strong>Specification and Relevant Standards<\/strong><\/h2>\n\n\n\nCountry<\/td>\n USA<\/td>\n BS<\/td>\n Japan<\/td>\n China<\/td>\n<\/tr>\n \nStandard<\/td>\n ASTM A29<\/td>\n EN 10083<\/td>\n JIS G4801<\/td>\n GB\/T 3077<\/td>\n<\/tr>\n \nGrades<\/td>\n 6150<\/td>\n 1.8159\/51CrV4<\/td>\n SUP 10<\/td>\n 50CrVA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n51CrV4 \/ 1.8159 Spring Steel<\/strong>\u00a0<\/strong>Chemical Composition per EN 10083-3 (Spring Steel)<\/strong><\/h2>\n\n\n\nGRADE<\/b><\/strong><\/td>\nNUMBER<\/b><\/strong><\/td>\nC<\/b><\/strong><\/td>\nSi<\/b><\/strong><\/td>\nMn<\/b><\/strong><\/td>\nP<\/b><\/strong><\/td>\nS<\/b><\/strong><\/td>\nCr<\/b><\/strong><\/td>\nV<\/b><\/strong><\/td>\n<\/tr>\n\n51CrV4<\/b><\/strong><\/td>\n1.8159 <\/b><\/strong><\/td>\n0.47-0.55<\/td>\n \u2264 0.40<\/td>\n 0.70-1.10<\/td>\n \u2264 0.025<\/td>\n \u2264 0.025<\/td>\n 0.90-1.20<\/td>\n 0.10-0.25<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n51CrV4 \/ 1.8159 Spring Steel<\/strong>\u00a0<\/strong>Mechanical Properties<\/strong><\/h2>\n\n\n\nProperties<\/td>\n \u00a0Conditions<\/td>\n<\/tr>\n \nT\u00a0(\u00b0C)<\/td>\n Treatment<\/td>\n<\/tr>\n \nDensity\u00a0(\u00d71000 kg\/m3)<\/td>\n 7.7-8.03<\/td>\n 25<\/td>\n <\/td>\n<\/tr>\n \nPoisson\u2019s Ratio<\/td>\n 0.27-0.30<\/td>\n 25<\/td>\n <\/td>\n<\/tr>\n \nElastic Modulus\u00a0(GPa)<\/td>\n 190-210<\/td>\n 25<\/td>\n <\/td>\n<\/tr>\n \nTensile Strength\u00a0(Mpa)<\/td>\n 667.4<\/td>\n 25<\/td>\n annealed at 815\u2103<\/td>\n<\/tr>\n \nYield Strength\u00a0(Mpa)<\/td>\n 412.3<\/td>\n<\/tr>\n \nElongation\u00a0(%)<\/td>\n 23.0<\/td>\n<\/tr>\n \nReduction in Area\u00a0(%)<\/td>\n 48.4<\/td>\n<\/tr>\n \nHardness\u00a0(HB)<\/td>\n 197<\/td>\n 25<\/td>\n annealed at 815\u2103<\/td>\n<\/tr>\n \nImpact Strength\u00a0(J)<\/td>\n 27.4<\/td>\n 25<\/td>\n annealed at 815\u2103<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nForging of Material 51CrV4 \/ 1.8159 Spring Steel<\/strong><\/h2>\n51CrV4 \/ 1.8159 Spring Steel\u00a0could be forged between 2150 and 1600\u00baF (1175 and 870\u00baC.) The alloy should be slow cooled after forging or transferred to a furnace around the \u2018finishing\u2019 temperature. Do not forge below 840\u00b0C.<\/p>\n
51CrV4 \/ 1.8159 Spring Steel<\/strong>\u00a0<\/strong>Heat Treatment<\/strong><\/h2>\n\n- Preheat:<\/li>\n<\/ul>\n
1200-1250F (650-675\u00baC), equalize.<\/p>\n
\n- Annealing:<\/li>\n<\/ul>\n
1100-1300F (595-740\u00baC), hold 2 hours, air cool. As with 5150 alloy, the microstructure for this 51CrV4 \/ 1.8159 Spring Steel\u00a0to give optimum machinability is one of coarse lamellar pearlite to coarse spheroidite.<\/p>\n
\n- Normalizing:<\/li>\n<\/ul>\n
A nominal normalizing temperature for the 51CrV4 \/ 1.8159 Spring Steel\u00a0is 1650\u00baF (900\u00baC.) This treatment is followed by air cooling.<\/p>\n
\n- Straightening:<\/li>\n<\/ul>\n
Best done warm 400-800F (205-425\u00baC).<\/p>\n
\n- High Heat:<\/li>\n<\/ul>\n
1550-1650F (845-900\u00baC), soak 10 to 30 minutes. For vacuum hardening, use the high side of the high heat range and soak times.<\/p>\n
\n- Quenching:<\/li>\n<\/ul>\n
Oil quench to hand warm, 150F (65\u00baC). Temper 51CrV4 \/ 1.8159 Spring Steel\u00a0immediately. Note vacuum furnaces must have oil quench capability.<\/p>\n
\n- Tempering:<\/li>\n<\/ul>\n
Tempering at 400-1200 (205-650\u00baC) for 1 hour per inch (25mm) of thickness at temperature is recommended. (2 hours min.). Air cool to room temperature. Tempering of the 51CrV4 \/ 1.8159 Spring Steel\u00a0will be between 400-600\u00b0C for most applications.<\/p>\n
Machinability of<\/strong>\u00a051CrV4 \/ 1.8159 Spring Steel<\/strong><\/h2>\n51CrV4 \/ 1.8159 Spring Steel is readily machined from a coarse pearlite to a coarse spheroidite microstructure. The machinability rating of 51CrV4 \/ 1.8159 Spring Steel\u00a0is 59.<\/p>\n
Welding of 51CrV4 \/ 1.8159 Spring Steel<\/strong>\u00a0<\/strong>Materials<\/strong><\/h2>\n51CrV4 \/ 1.8159 Spring Steel can be welded, however, preheating and post weld stress relieving have to be performed for welding this steel.<\/p>\n
Welding of 51CrV4 \/ 1.8159 Spring Steel\u00a0should be carried out in the annealed condition, not on hardened and tempered material.<\/p>\n
Application of 51CrV4 \/ 1.8159 Spring Steel<\/strong><\/h2>\nIt\u2019s commonly used in heavily stressed machinery parts including shafts, gears, pinions and also in hand tool components. 51CrV4 \/ 1.8159 Spring Steel\u00a0is also widely in the motor vehicle industry 51CrV4 \/ 1.8159 Spring Steel\u00a0is suitable for many general engineering applications that require high tensile strength and toughness.<\/p>\n<\/div><\/section><\/div>
\n<\/div><\/section>
\nLatest Products<\/h3>
\n51CrV4 \/ 1.8159 Spring Steel Square Bar: 20mm \u2013 500mm
\nSurface Finish: Black, Rough Machined, Turned or as per given requirements.<\/p>\n
| Country<\/td>\n | USA<\/td>\n | BS<\/td>\n | Japan<\/td>\n | China<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Standard<\/td>\n | ASTM A29<\/td>\n | EN 10083<\/td>\n | JIS G4801<\/td>\n | GB\/T 3077<\/td>\n<\/tr>\n | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Grades<\/td>\n | 6150<\/td>\n | 1.8159\/51CrV4<\/td>\n | SUP 10<\/td>\n | 50CrVA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n51CrV4 \/ 1.8159 Spring Steel<\/strong>\u00a0<\/strong>Chemical Composition per EN 10083-3 (Spring Steel)<\/strong><\/h2>\nGRADE<\/b><\/strong><\/td>\n | NUMBER<\/b><\/strong><\/td>\n | C<\/b><\/strong><\/td>\n | Si<\/b><\/strong><\/td>\n | Mn<\/b><\/strong><\/td>\n | P<\/b><\/strong><\/td>\n | S<\/b><\/strong><\/td>\n | Cr<\/b><\/strong><\/td>\n | V<\/b><\/strong><\/td>\n<\/tr>\n | 51CrV4<\/b><\/strong><\/td>\n | 1.8159 <\/b><\/strong><\/td>\n | 0.47-0.55<\/td>\n | \u2264 0.40<\/td>\n | 0.70-1.10<\/td>\n | \u2264 0.025<\/td>\n | \u2264 0.025<\/td>\n | 0.90-1.20<\/td>\n | 0.10-0.25<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n | 51CrV4 \/ 1.8159 Spring Steel<\/strong>\u00a0<\/strong>Mechanical Properties<\/strong><\/h2>\nProperties<\/td>\n | \u00a0Conditions<\/td>\n<\/tr>\n | T\u00a0(\u00b0C)<\/td>\n | Treatment<\/td>\n<\/tr>\n | Density\u00a0(\u00d71000 kg\/m3)<\/td>\n | 7.7-8.03<\/td>\n | 25<\/td>\n | <\/td>\n<\/tr>\n | Poisson\u2019s Ratio<\/td>\n | 0.27-0.30<\/td>\n | 25<\/td>\n | <\/td>\n<\/tr>\n | Elastic Modulus\u00a0(GPa)<\/td>\n | 190-210<\/td>\n | 25<\/td>\n | <\/td>\n<\/tr>\n | Tensile Strength\u00a0(Mpa)<\/td>\n | 667.4<\/td>\n | 25<\/td>\n | annealed at 815\u2103<\/td>\n<\/tr>\n | Yield Strength\u00a0(Mpa)<\/td>\n | 412.3<\/td>\n<\/tr>\n | Elongation\u00a0(%)<\/td>\n | 23.0<\/td>\n<\/tr>\n | Reduction in Area\u00a0(%)<\/td>\n | 48.4<\/td>\n<\/tr>\n | Hardness\u00a0(HB)<\/td>\n | 197<\/td>\n | 25<\/td>\n | annealed at 815\u2103<\/td>\n<\/tr>\n | Impact Strength\u00a0(J)<\/td>\n | 27.4<\/td>\n | 25<\/td>\n | annealed at 815\u2103<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n | Forging of Material 51CrV4 \/ 1.8159 Spring Steel<\/strong><\/h2>\n
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