Heat-Resisting Stainless Steels
Steel Type Country Code C(%) Si(%) Mn(%) P(%) S(%) Ti(%) Cr(%) Mo(%)
304 CNS <0.08 <1.0 <2.0 <0.045 <0.03 18.0-20.0
0Cr18Ni9 GB <0.07 <2.0 <1.0 <0.03 <0.035 17.0-19.0
0Cr19Ni9 GB <0.08 <1.0 <2.0 <0.035 <0.03 18.0-20.0
SUS304 JIS <0.08 <1.0 <2.0 <0.045 <0.03 18.0-20.0
304 AISI <0.08 <1.0 <2.0 <0.045 <0.03 18.0-20.0
0Cr23Ni13 GB <0.08 <1.5 <2.0 <0.035 <0.03 22.0-24.0
SUS309S JIS <0.08 <1.5 <2.0 <0.045 <0.03 22.0-24.0
309S AISI <0.08 <1.5 <2.0 <0.045 <0.03 22.0-24.0
X7CrNi-23-14 DIN <0.08 <1.0 <2.0 <0.045 <0.03 21.0-23.0
SUS310S JIS <0.08 <1.5 <2.0 <0.045 <0.03 24.0-26.0
310S AISI <0.08 <1.5 <2.0 <0.045 <0.03 24.0-26.0
SUS316 JIS <0.08 <1.0 <2.0 <0.045 <0.03 16.0-18.0 2.0-3.0
316 AISI <0.08 <1.0 <2.0 <0.045 <0.03 16.0-18.0 2.0-3.0
0Cr18Ni-12Mo2Ti GB <0.08 <1.0 <2.0 <0.035 <0.03 16.0-19.0 1.8-2.5
SUS317 JIS <0.08 <1.0 <2.0 <0.045 <0.03 18.0-20.0 3.0-4.0
317 AISI <0.08 <1.0 <2.0 <0.045 <0.03 18.0-20.0 3.0-4.0
321 CNS <0.08 <1.0 <2.0 <0.045 <0.03 >5xC% 17.0-19.0
0Cr18-Ni11Ti GB <0.08 <1.0 <2.0 <0.035 <0.03 >5xC% 17.0-19.0
SUS321 JIS <0.08 <1.0 <2.0 <0.045 <0.03 >5xC% 17.0-19.0
321 AISI <0.08 <1.0 <2.0 <0.045 <0.03 >5xC% 17.0-19.0
347 CNS <0.08 <1.0 <2.0 <0.045 <0.03 17.0-19.0
0Cr18Ni-11Nb GB <0.08 <1.0 <2.0 <0.035 <0.03 17.0-19.0
SUS347 JIS <0.08 <1.0 <2.0 <0.045 <.03 17.0-19.0
347 AISI <0.08 <1.0 <2.0 <0.045 <0.03 17.0-19.0
X6CrNi-Nb18-10 DIN <0.08 <1.0 <2.0 <0.045 <0.03 17.0-19.0
405 AISI <0.08 <1.0 0.1-0.3 <1.0 <0.04 <0.03 11.5-14.5
410 AISI <0.15 <1.0 <1.0 <0.04 <0.03 11.5-13.5
X10Cr13 DIN 0.08-0.12 <1.0 <1.0 <0.045 <0.03 12.0-14.0
00Cr12 GB <0.03 <1.0 <1.0 <0.04 <0.03 11.0-13.0
SUS410L JIS <0.03 <1.0 <1.0 <0.04 <0.03 11.0-13.5
420J1 CNS 0.16-0.25 <1.0 <1.0 <0.035 <0.03 12.0-14.0
2Cr13 GB 0.16-0.25 <1.0 <1.0 <0.035 <0.03 12.0-14.0
SUS420J1 JIS 0.16-0.25 <1.0 <1.0 <0.04 <0.03 12.0-14.0
420 AISI >0.15 <1.0 <1.0 <0.04 <0.03 12.0-14.0
X20Cr13 DIN 0.17-0.22 <1.0 <1.0 <0.045 <0.03 12.0-14.0
430 CNS <0.12 <0.75 <1.0 <0.04 <0.03 16.0-18.0
1Cr17 GB <0.12 <0.75 <1.0 <0.035 <0.03 16.0-18.0
SUS430 JIS <0.12 <0.75 <1.0 <0.04 <0.03 16.0-18.0
430 AISI <0.12 <1.0 <1.0 <0.04 <0.03 16.0-18.0
X6Cr17 DIN <0.08 <1.0 <1.0 <0.045 <0.03 16.0-18.0
1Cr17Ni2 GB 0.11-0.17 <0.8 <0.8 <0.035 <0.03 16.0-18.0
SUS431 JIS <0.2 <1.0 <1.0 <0.04 <0.03 15.0-17.0
431 AISI <0.2 <1.0 <1.0 <0.04 <0.03 15.0-17.0
X20Cr-Ni17-2 DIN 0.14-0.23 <1.0 <1.0 <0.045 <0.03 15.5-17.5
630 CNS <0.07 <1.0 <1.0 <0.04 <0.03 15.0-17.0
0Cr17Ni-4Cu4Nb GB <0.07 <1.0 <1.0 <0.04 <0.03 15.0-17.5
SUS631 JIS <0.09 <1.0 0.75-1.50 <1.0 <0.04 0.75-1.50 <0.03 16.0-18.0
631 CNS <0.09 <1.0 0.75-1.50 <1.0 <0.04 <0.03 16.0-18.0
0Cr17-Ni7A1 GB <0.09 <1.0 0.75-1.50 <1.0 <0.035 <0.03
1 CNS 0.4-0.5 3.0-3.5 <0.6 <0.03 <0.03
4Cr9Si2 GB 0.35-0.5 2.0-3.0 <0.7 <0.035 <0.03
SUH1 JIS 0.4-0.5 3.0-3.5 <0.6 <0.03 <0.03
HNV3 SAE 0.4-0.5 2.75-3.75 <0.8 <0.04 <0.03
X45Cr-Si9-3 DIN 0.4-0.5 2.7-3.3 <0.8 <0.04 <0.03
3 CNS 0.35-0.45 1.8-2.5 <0.6 <0.03 <0.03
4Cr10Si-2Mo GB 0.35-0.45 1.9-2.6 <0.7 <0.03 <0.03
SUH3 JIS 0.35-0.45 1.8-2.5 <0.6 <0.03 <0.03
X40CrSi-Mo10-2 DIN 0.35-0.45 2.0-3.0 <0.8 <0.04 <0.03
4 CNS 0.75-0.85 1.75-2.25 0.2-0.6 <0.03 <0.03
8Cr20Si-2Ni GB 0.75-0.85 1.75-2.25 0.2-0.6 <0.03 <0.03
SUH4 JIS 0.75-0.85 1.75-2.25 0.2-0.6 <0.03 <0.03
X80Cr-NiSi20 DIN 0.75-0.85 1.75-2.25 <1.0 <0.03 <0.03
X45CrNi-W18-9 DIN 0.4-0.5 2.0-3.0 0.8-1.5 <0.045 <0.03
SUH36 JIS 0.48-0.58 <0.35 8.0-10.0 <0.04 0.04-0.09
EV8 SAE 0.48-0.58 <0.25 8.0-10.0 <0.05 0.35-0.55 <0.035
SUH37 JIS 0.15-0.25 <1.0 1.0-1.6 <0.04 0.15-0.30 <0.03
38 CNS 0.25-0.35 <1.0 <1.2 0.18-0.25 <0.03
660 CNS <0.08 0.1-0.5 <1.0 <2.0 <0.04 <0.03
0Cr15Ni25T-2MoA1VB GB <0.08 <1.0 <2.0 <0.035 <0.03
661 CNS 0.08-0.16 <1.0 1.0-2.0 <0.04 0.1-0.2 <0.03
1Cr22Ni20-Co20Mo3 GB 0.08-0.16 <1.0 1.0-2.0 <0.035 0.1-0.2 <0.03
SUH661 JIS 0.08-0.16 <1.0 1.0-2.0 <0.04 0.1-0.2 <0.03
661 AISI 0.11-0.13 0.6-0.8 1.4-1.6 0.12-0.14 20.7-20.8
X12CrCo-Ni21-20 DIN 0.08-0.16 <1.0 <2.0 <0.045 0.1-0.2 <0.03 20.0-22.5
309 CNS <0.2 <1.0 <2.0 <0.04 <0.03 22.0-24.0
2Cr23Ni13 GB <0.2 <1.0 <2.0 <0.035 <0.03 22.0-24.0
SUH309 JIS <0.2 <1.0 <2.0 <0.04 <0.03 22.0-24.0
309 AISI <0.2 <1.0 <2.0 <0.045 <0.03 22.0-24.0
X15CrNi-Si20-12 DIN <0.2 1.5-2.5 <2.0 <0.04 <0.03 22.0-25.0
310 CNS <0.25 <1.5 <2.0 <0.04 <0.03 24.0-26.0
1Cr25Ni-20Si2 GB <0.2 1.5-2.5 <1.5 <0.03 <0.03 24.0-27.0
2Cr25Ni20 GB <0.25 <1.5 <2.0 <0.035 <0.03 24.0-26.0
SUH310 JIS <0.25 <1.5 <2.0 <0.04 <0.03 24.0-26.0
310 AISI <0.25 <1.5 <2.0 <0.045 <0.03 24.0-26.0
X12Cr-Ni25-20 DIN <0.15 <1.5 1.0-2.5 <0.025 <0.02 24.0-27.0
X15CrNi-Si25-20 DIN <0.15 <1.0 <2.0 <0.04 <0.03 23.0-26.0
330 CNS <0.15 <1.5 <2.0 <0.04 <0.03 14.0-17.0
1Cr16Ni35 GB <0.15 <2.0 <1.5 <0.035 <0.03 14.0-17.0
SUH330 JIS <0.15 <1.5 <2.0 <0.04 <0.03 14.0-17.0
330 AISI <0.15 0.75-1.5 <2.0 <0.04 <0.03 17.0-20.0
X12NiCr-Si36-16 DIN <0.15 1.0-2.0 <2.0 <0.03 <0.015 15.0-17.0
446 CNS <0.2 <1.0 <1.5 <0.04 <0.25 <0.03 23.0-27.0
2Cr25N GB <0.2 <1.0 <1.5 <0.035 <0.25 <0.03 23.0-27.0
SUH446 JIS <0.2 <1.0 <1.5 <0.04 <0.25 <0.03 23.0-27.0
446 AISI <0.2 <1.0 <1.5 <0.04 <0.25 <0.03 23.0-27.0
600 CNS 0.15-0.20 0.1-0.4 <0.5 0.5-1.0 <0.04 <0.03 10.0-13.0
2Cr12Mo-VNbN GB 0.15-0.2 <0.5 0.5-1.0 <0.035 <0.03
SUH600 JIS 0.15-0.20 0.1-0.4 <0.5 0.5-1.0 <0.04 <0.03
616 CNS 0.20-0.25 0.2-0.3 <0.5 0.5-1.0 <0.04 <0.03
2Cr12Ni-MoWV GB 0.20-0.25 0.2-0.3 <0.5 0.5-1.0 <0.035 <0.003
SUH616 JIS 0.20-0.25 0.2-0.3 <0.5 0.5-1.0 <0.04 <0.03
616 ASTM 0.2-0.25 0.2-0.3 <0.5 0.5-1.0 <0.025 <0.025
X20CrMo-WV12-1 DIN 0.17-0.25 0.25-0.35 0.1-0.5 0.3-0.8 <0.045 <0.03
SUS630 JIS <0.07 <1.0 <1.0 <0.04 <0.03
630 AISI <0.07 <1.0 <1.0 <0.04 <0.03
X5CrNiCu-Nb17-4 DIN <0.07 <1.0 <1.0 <0.025 <0.03
631 AISI <0.09 <1.0 0.75-1.50 <1.0 <0.04 <0.03
X7CrNi-A117-7 DIN <0.09 <1.0 <1.0 <0.045 0.75-1.50 <0.03
304H AISI 0.04-0.1 <1.0 <2.0 <0.04 <0.03
X5Cr-Ni18-9 DIN <0.07 <1.0 <2.0 <0.045 <0.03
309S CNS <0.08 <1.5 <2.0 <0.045 <0.03
X12Cr-Ni25-21 DIN <0.15 <0.35 <2.0 <0.045 <0.03
1Cr25Ni20-Si2 GB <0.2 1.5-2.5 <1.5 <0.035 <0.03
316 CNS <0.08 <1.0 <2.0 <0.045 <0.03
0Cr17Ni-12Mo2 GB <0.08 <1.0 <2.0 <0.035 <0.03
X5CrNiMo-17-12-2 DIN <0.07 <1.0 <2.0 <0.045 <0.015
X5CrNiMo-17-13-3 DIN <0.05 <1.0 <2.0 <0.045 >0.11 <0.015
X5CrMo-17-13 DIN <0.07 <1.0 <2.0 <0.045 <0.03
X10CrNi-Ti18-9 DIN <0.1 <1.0 <0.2 <0.045 <0.03
XM15 ASTM <0.08 1.5-2.5 <2.0
0Cr18Ni-13Si4 GB <0.08 3.0-5.0 <2.0 <0.035 <0.03 15.0-20.0
SUSXM-15J1 JIS <0.08 3.0-5.0 <2.0 <0.04 <0.03 15.0-20.0
X7CrA113 DIN <0.08 <1.0 0.1-0.3 <1.0 <0.04 <0.015 12.0-14.0
X10CrA113 DIN <0.12 0.7-1.4 0.7-1.2 <1.0 <0.04 <0.03 12.0-14.0
SUS410 JIS <0.15 <1.0 <1.0 <0.04 <0.03 11.5-13.5
SUS410J1 JIS 0.08-0.18 <0.6 <1.0 <0.04 <0.03 11.5-14.0 0.3-0.6
1Cr13Mo GB 0.08-0.18 <0.6 <1.0 <0.035 <0.03 11.5-14.0 0.3-0.6
X8Cr17 DIN <0.1 <1.0 <1.0 <0.045 <0.03 15.5-17.5
X10CrA118 DIN <0.12 0.7-1.4 0.7-1.2 <1.0 <0.04 <0.03 17.0-19.0
Heat-resisting stainless steels, also known as heat-resistant stainless steels or heat-resistant alloys, are a group of stainless steels that are designed to maintain their strength and corrosion resistance at high temperatures. These alloys are used in applications where they will be exposed to elevated temperatures, such as in the petrochemical, power generation, aerospace, and automotive industries.

The characteristics and properties of heat-resisting stainless steels include:

1. High temperature strength: Heat-resisting stainless steels have excellent strength and toughness at elevated temperatures, allowing them to withstand extreme heat without significant deformation or failure.

2. Oxidation resistance: These alloys have a high level of resistance to oxidation, which helps them maintain their corrosion resistance and structural integrity at high temperatures. They form a protective oxide layer on the surface that prevents further oxidation.

3. Creep resistance: Heat-resisting stainless steels have a low rate of creep deformation, meaning they resist deformation under long-term exposure to high temperatures. This property is critical in applications where components are subjected to constant loads over time.

4. Thermal stability: These alloys have good thermal stability, meaning they have minimal changes in microstructure and mechanical properties even when exposed to thermal cycling or rapid temperature changes. This stability allows them to maintain their performance at various temperature ranges.

5. Resistance to corrosion: Heat-resisting stainless steels are typically highly resistant to corrosion in various corrosive environments, including oxidation, sulfidation, carburization, and nitriding. This makes them suitable for applications in aggressive environments where both heat and corrosion resistance are required.

Some examples of heat-resisting stainless steels include:

1. Austenitic stainless steels: These alloys, such as AISI 310 and 314, are widely used in high-temperature applications due to their excellent resistance to oxidation and creep at elevated temperatures.

2. Ferritic stainless steels: Alloys like AISI 446 and 430 are known for their resistance to high-temperature scaling and excellent thermal conductivity, making them suitable for applications involving heat exchangers, furnaces, and exhaust systems.

3. Martensitic stainless steels: Heat-resisting martensitic stainless steels, such as AISI 403 and 410, offer good strength and moderate corrosion resistance at high temperatures.

In summary, heat-resisting stainless steels are a specialized group of alloys designed to withstand high temperatures while maintaining their strength, corrosion resistance, and other mechanical properties. They are essential in various industries where exposure to extreme heat is a concern.