Products Description
1.4871 21-4N Valve steel
X53CrMnNiN219 (1.4871) belongs to the European standard valve steel and valve alloy for internal combustion engines, the implementation standard: ISO683-15:1992
X53CrMnNiN219 (1.4871) corresponds to the Chinese stainless steel grade 5Cr21Mn9Ni4N.
X53CrMnNiN219 (1.4871) is an Austenitic heat-resistant steel with carbide as precipitation hardening phase, which is used to make exhaust valves for gasoline engines mainly subjected to high temperature strength. The steel contains higher Cr, which results in higher oxidation resistance and corrosion resistance. The austenitic structure can be obtained by adding Mn, Ni and N. The precipitation strengthening phase can be obtained by adding C and N.
Name: Valve steel
Material number: 1.4871
Brand: X53CrMnNiN219
Standard: SEW 490
The chemical composition of X53CrMnNiN219 (1.4871) is as follows:
| Element | Content |
|---|---|
| C | 0.48~0.58+ |
| Si | <0.35p |
| Mn | 8. .00~10.00 |
| P | ≤0.040 |
| S | - |
| Cr | 20.00~22.00 |
| N | 3.25~4.50+ |
| NI | 3.25-4.05 |
| Cu | ≤0.30 |
| C+Cu | ≥0.90 |
| Conditions | Test temperature | Heat treatment or condition | strength of extension σb Mpa |
Yield point σs Mpa |
Elongation or elongation after breaking δ % |
reduction of area ψ % |
hardness HBW |
|---|---|---|---|---|---|---|---|
| steel | indoor temperature | Controlled cooled | ≈1300 | ≈385 | |||
| steel | indoor temperature | Quenched at 1000°C to 1100°C | ≤1300 | ≤385 | |||
| steeld≤40 | indoor temperature | +AT +P | 950~1200 | ≥580 | ≥8 | ≥10 | HRC≥30* |
| steel | 500°C | +AT +P | ≥650 | ≥350 | |||
| steel | 550°C | ≥600 | ≥330 | ||||
| steel | 600°C | ≥550 | ≥300 | ||||
| steel | 650°C | ≥500 | ≥270 | ||||
| steel | 700°C | ≥450 | ≥250 | ||||
| steel | 750°C | ≥370 | ≥230 | ||||
| steel | 800°C | ≥300 | ≥200 |
Available steel
Stainless steel 2Cr10MoVNbN, 2Cr11Mo1NiWVNbN, 1Cr6Si2Mo, 22Cr12NiWMoV, 2Cr12NiWMoV, S47220, SUH616, 616, S42200, 1.4935, X20CrMoWV12-1, 2Cr12NiM o1W1V, 22Cr12NiMoWV, 2Cr12NiMoWV, S31254, F44, 254SMo, S31252, X33CrNiMnN23-8, 45Cr14Ni14W2Mo, 4Cr14Ni14W2Mo, S32590, SUH31, 50Cr21M n9Ni4Nb2WN, 21-4NWNb, 1.4882, X50CrMnNiNbN21-9, 53Cr21Mn9Ni4N, 5Cr21Mn9Ni4N, S35650, 21-4N, S63008, 1.4871, X53CrMnNiN21-9, SUH35.
Sichuan Liaofu Special Steel Company.,Ltd
Equivalent Materials:
AISI/SAE 410 and AISI 420:
AISI 410: This is a martensitic stainless steel with a high chromium content, offering good hardness and wear resistance. However, its heat resistance may be inferior to X45CrSi9-3 in extremely high-temperature conditions.
AISI 420: Similar to AISI 410, this is also a martensitic stainless steel with high hardness, suitable for high-strength and corrosion-resistant applications. However, its performance in high-temperature and high-pressure environments may be slightly inferior to X45CrSi9-3.
DIN 1.4034:
DIN 1.4034 is a martensitic stainless steel with similar chemical composition and performance, commonly used for manufacturing high-temperature and wear-resistant parts. This material has comparable corrosion resistance and thermal stability to X45CrSi9-3, making it a suitable alternative, especially in industrial environments that require good high-temperature and wear performance.
EN 10088-3 Series Materials:
X40CrSiMo10-9 and X45CrNiWMoV12-3: These materials, under the EN standard, have similar composition and performance to X45CrSi9-3, and are suitable for applications in high-temperature and high-pressure environments, particularly in the petrochemical and power generation industries.
jis SUH 1 valve steel x45cr9si3 valvle steel bar 4cr9si2 from factory
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