Sichuan Liaofu Special Steel Company is one of the most experienced manufacturers and suppliers of valve steel 21-4n 21-2n 1.4875 1.4871 1.4731 1.4718 in China. With over 20 years' experience, our factory offer high quality products made in China with competitive price. Welcome to contact us for wholesale service.
Valve steel materials like 21-4N, 21-2N, 1.4875, 1.4871, 1.4731, and 1.4718 are often used in high-performance applications, such as in valve manufacturing for internal combustion engines or industrial machinery. They are characterized by high strength, wear resistance, and heat resistance. Here's a brief overview of each:
21-4N: This is a chromium-molybdenum alloy steel that provides good high-temperature strength and resistance to thermal fatigue. It's often used for valve stems and other parts that are exposed to high-temperature and high-stress conditions.
21-2N: Similar to 21-4N but with a slightly different alloy composition, 21-2N offers good performance in high-temperature environments, particularly in valves for combustion engines.
1.4875: Also known as X20CrMoV121 in the European standard, this is a high-chromium-molybdenum-vanadium alloy steel. It's typically used for valves and other components that require high resistance to thermal cycling and oxidation at elevated temperatures.
1.4871: This alloy is similar to 1.4875 but with slightly different properties, offering improved thermal stability and oxidation resistance. It's also used in valve manufacturing, particularly where high thermal fatigue resistance is crucial.
1.4731: Known for good mechanical properties at high temperatures, 1.4731 is a chromium-nickel steel designed for high-stress applications. It offers excellent resistance to oxidation and corrosion in demanding environments.
1.4718: This is another high-performance valve steel, offering excellent heat and wear resistance, making it suitable for valve applications in engines or other systems with high operational temperatures.
| EN 10090 | SAE | DIN(WNo.) | BS | JIS | IS |
| X45CrSi93 | HNV3 | 1.4718 | EN52 | SUH1 | X45Cr9Si3 |
| X40CrSiMo10-2 | HNV1 | 1.4731 | SUH3 | X40Cr11Si2Mo10 | |
| X50CrSi82 | SUH-11 | X50Cr8Si2 | |||
| X53CrMnNiN21-9 | EV8 | 1.4871 | 21-4N | SUH35 | X53CrMnNiN219 |
| X55CrMnNiN20-8 | EV12 | 1.4875 | 21-2N | X55CrMnNiN208 | |
| X50CrMnNiNbN219 | VA63 | 1.4882 | 21-43 | X50CrMnNiNbN219 | |
| HEV3 | Inconel751 | NiCr15Fe7TiAl |
Similar steel grade & equivalent steel materials:
| BS |
Japanese |
Gemany |
British |
France |
International |
Chinese |
|
ASTM&AISI&SAE |
JIS |
EN DIN |
EN BS |
EN NF |
ISO |
GB |
|
21-4N |
SUH35 |
X53CrMnNiN21-9(1.4871) |
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5Cr21Mn9Ni4N |
||
|
SUH1 |
1.4718 X45crsi9-3 |
X45CR9SI3 | 4cr9si2 | |||
|
SUH3 |
X40CrSiMo10-2 1.4731 |
X40Cr11si2Mo1 | 4cr10si2mo | |||
| 21-2N | X55CrMnNiN20-8 1.4875 | x55cr2mn8ni2n | ||||
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