| Major categories of stainless steel |
National standard grades |
American Standard numbers (ASTM/UNS) |
Japanese Code (JIS) |
European marking number (EN/ material number) |
Application scenarios |
| Austenitic stainless steel |
06Cr19Ni10 |
304/S30400 |
SUS304 |
10/1.4301 X5CrNi18 - |
Kitchenware and tableware, hardware fittings, Architectural decoration, fluid fittings, General mechanical equipment, Daily five Metalwork |
| Austenitic stainless steel |
022Cr19Ni10 |
304L/S30403 |
SUS304L |
9/1.4306 X2CrNi18 - |
Chemical containers, welded pipe fittings, Food and pharmaceutical equipment, large steel Structures, low-temperature components |
| Austenitic stainless steel |
06Cr17Ni12Mo2 |
316/S31600 |
SUS316 |
X5CrNiMo17-12-2/1. |
Ship fittings, Marine equipment, Chemical piping, pumps and valves, coastal Construction, food and pharmaceutical equipment |
| Austenitic stainless steel |
022Cr17Ni12Mo2 |
316L/S31603 |
SUS316L |
X2CrNiMo17-12-2/1. |
Deep-sea equipment, chemical reactions Kettles, high-end food equipment, sea Water desalination components |
| Austenitic stainless steel |
06Cr18Ni11Ti |
321/S32100 |
SUS321 |
10/1.4541 X6CrNiTi18 - |
High-temperature piping, boiler fittings, Heat treatment equipment, aerospace Structural components |
| Austenitic stainless steel |
06Cr25Ni20 |
310S/S31008 |
SUS310S |
20/1.4845 X15CrNiSi25 - |
Industrial furnace bodies, kiln fittings, High-temperature heating pipes, heat treatment Tooling |
| Austenitic stainless steel |
06Cr25Ni20Si2 |
314/S31400 |
SUS314 |
21/1.4841 X15CrNiSi25 - |
Industrial heat treatment furnaces, high-temperature POTS Furnace pipes, kiln linings, high Heating equipment fittings for high temperatures |
| Austenitic stainless steel |
022Cr18Ni16Mo5 |
S31792 |
SUS31792 |
X2CrNiMo18-16-5/1. |
High-temperature chemical fluid piping, along Offshore high-temperature equipment, desulfurization and denitrification Equipment components |
| Austenitic stainless steel |
06Cr21Ni5Mo2N |
S20910 |
SUS20910 |
X2CrNiMoN21-5-2/1. |
High-temperature pressure vessels, heat exchangers Apparatus, chemical high-temperature structural components, High-temperature ship fittings |
| Austenitic stainless steel |
022Cr19Ni13Mo4 |
904L/S38904 |
SUS904L |
X1NiCrMoCu25-20-5/ |
Chemical desulfurization equipment, pharmaceutical equipment Equipment, high-end corrosion-resistant precision parts Parts, seawater treatment equipment |
| Austenitic stainless steel |
020Cr18Ni20Mo6CuN |
254Mo/S31254 |
SUS254Mo |
X1CrNiMoCuN20-18-7 |
Desalination equipment, deep-sea vessels Ship piping, chemical strong acid equipment Equipment, high-end seawater treatment components |
| Austenitic stainless steel |
015Cr21Ni26Mo5Cu2 |
N08367 |
SUSN08367 |
X1CrNiMoCu21-26-5/ |
Deep-sea oil and gas equipment, chemical distillation Towers, high-salt wastewater treatment, nuclear engineering Corrosion-resistant components for the industry |
| Austenitic stainless steel |
020 cr20ni25mo4. 5 cu |
Incoloy926/N08926 |
SUS926 |
X1CrNiMoCu20-25-5/ |
Flue gas desulfurization equipment, chemical mixing Medium piping, pharmaceutical fermentation equipment Equipment, high-end components for Marine engineering |
| Austenitic stainless steel |
06Cr18Ni9Cu3 |
304Cu/S30430 |
SUS304Cu |
9/1.4567 X5CrNiCu18 - |
Precision hardware, electronic accessories, I Bath parts, small stamping parts |
| Austenitic stainless steel |
06Cr19Ni13Mo3 |
317L/S31703 |
SUS317L |
X2CrNiMo18-15-4/1. |
Chemical distillation equipment, seawater desalination Piping for chemical and acidic fluids |
| Ferritic stainless steel |
10Cr17 |
430/S43000 |
SUS430 |
X6Cr17/1.4016 |
Home appliance casings, interior decoration, virtual Sanitary hardware, car interiors, daily-use Hardware |
| Ferritic stainless steel |
022Cr12 |
409L/S40903 |
SUS409L |
X2CrTi12/1.4512 |
Car exhaust pipes, household kitchenware, Common decorative panels |
| Ferritic stainless steel |
10Cr17Mo |
434/S43400 |
SUS434 |
X6CrMo17/1.4113 |
Bathroom fixtures, car trims, Outdoor decorative components |
| Ferritic stainless steel |
019Cr18MoTi |
444/S44400 |
SUS444 |
2/1.4521 X2CrMoTi18 - |
Solar energy equipment, water purification equipment Equipment, coastal civil decoration, sanitation Bath components, water heater inner tanks |
| Ferritic stainless steel |
10Cr15 |
439/S43900 |
SUS439 |
X3CrTi17/1.4511 |
Kitchenware inner liner, home appliance panel, Small containers |
| Ferritic stainless steel |
022Cr19Ti |
441/S44100 |
SUS441 |
X2CrTi18/1.4509 |
Kitchen appliances, heating components, Outdoor decoration |
| Ferritic stainless steel |
10Cr13 |
410S/S41008 |
SUS410S |
X6Cr13/1.4000 |
Mechanical parts, civilian hardware, Decorative strips |
| Ferritic stainless steel |
019Cr24Mo4Ti |
446/S44600 |
SUS446 |
X2CrMo25-5-1/1.4597 |
Industrial chimneys, outdoor high-temperature resistant Corrosion components, outside of chemical equipment Shells, large coastal decorative pieces |
| Ferritic stainless steel |
022Cr21Mo3Ti |
445/S44500 |
SUS445 |
3/1.4591 X2CrMoTi21 - |
High-end kitchen and bathroom, water purification equipment, Coastal civilian hardware, decorative surfaces plate |
| Ferritic stainless steel |
022Cr26Mo1Ti |
447/S44700 |
SUS447 |
1/1.4592 X2CrMo26 - |
Coastal construction, industrial anti-corrosion equipment Equipment, long-term outdoor corrosion-resistant structures a |
| Martensitic stainless steel |
12Cr13 |
410/S41000 |
SUS410 |
X12Cr13/1.4006 |
Valves, shafts, fasteners, Tool fittings, mechanical wear parts |
| Martensitic stainless steel |
20Cr13 |
420/S42000 |
SUS420 |
X20Cr13/1.4021 |
Precision cutting tools, medical cutting tools, Valve cores, wear-resistant tools |
| Martensitic stainless steel |
30Cr13 |
420J2/S42020 |
SUS420J2 |
X30Cr13/1.4028 |
Industrial tools, bearings, wear-resistant Mechanical parts, mold fittings |
| Martensitic stainless steel |
9Cr18 |
440C/S44004 |
SUS440C |
X105CrMo17/1.4125 |
High-end bearings, precision tools, Measuring tools, wear-resistant molds, medical Surgical knives |
| Martensitic stainless steel |
11Cr17 |
440B/S44003 |
SUS440B |
X90CrMo18/1.4112 |
Industrial bearings, wear-resistant cutting tools, Mechanical molds, valve fittings, Precision wear-resistant parts |
| Martensitic stainless steel |
14Cr17Ni2 |
431/S43100 |
SUS431 |
2/1.4057 X17CrNi16 - |
Pump shaft, valve stem, gear, Precision mechanical parts, Ocean Five gold |
| Martensitic stainless steel |
17Cr16Ni2 |
440A/S44002 |
SUS440A |
X70CrMo15/1.4109 |
High-end cutting tools, bearings, measuring Tools, wear-resistant molds |
| Martensitic stainless steel |
06Cr17 |
416/S41600 |
SUS416 |
X12CrS13/1.4005 |
Precision screws, instrument fittings, Electronic hardware, automatic turning parts |
| Duplex stainless steel austenitic + iron Plain duplex structure |
022Cr22Ni5Mo3N |
2205/S32205 |
SUS329J3L |
X2CrNiMoN22-5-3/1. |
Oil and gas equipment, chemical pressure capacity Vessels, seawater pipelines, deep-sea engineering cheng |
| Duplex stainless steel austenitic + iron Plain duplex structure |
022Cr25Ni7Mo4N |
2507/S32750 |
SUS329J5L |
X2CrNiMoN25-7-4/1. |
Deep sea oil and gas, chemical desulfurization, Seawater desalination, highly corrosive chemicals Equipment, offshore platform components |
| Duplex stainless steel austenitic + ferritic Bulk duplex structure |
022Cr26Ni7Mo4CuN |
S32760 |
SUSS32760 |
X2CrNiMoCuN25-7-4/ |
Deep-sea vessel piping, Marine oil Gas extraction, seawater lift pump, Highly corrosive chemical pipelines |
| Duplex stainless steel austenitic + ferritic Bulk duplex structure |
022Cr19Ni5Mo3Si2N |
2304/S32304 |
SUS2304 |
X2CrNiMoN19-5-3/1 |
Chemical piping, water treatment equipment Equipment, general Marine engineering components |
| Duplex stainless steel austenitic + ferritic Bulk duplex structure |
022Cr25Ni6Mo2N |
2101/S32101 |
SUS2101 |
X2CrNiN21-1-2/1.4162 |
Building structures, bridge fittings, General chemical equipment |
| Duplex stainless steel austenitic + ferritic Bulk duplex structure |
022Cr27Ni5Mo4N |
2707/S32707 |
SUS2707 |
X2CrNiMoN27-5-4/1. |
Deep sea drilling, high-end chemicals, Corrosion-resistant components for the nuclear industry |
| Precipitation-hardening stainless steel |
04Cr17Ni7Al |
17-4PH/S17400 |
SUS630 |
X5CrNiCuNb17-4/1. |
Aerospace accessories, precision instruments Watches, valves, shafts, high-end Mechanical parts |
| Precipitation-hardening stainless steel |
06Cr17Ni4Cu4Nb |
17-4PH low-carbon improvement Item /S17401 |
SUS630L |
X4CrNiCuNb17-4/1. |
Welded precision structural components, chemical Welding containers, aviation welding Accessories |
| Precipitation hardening stainless steel |
07Cr17Ni7Al |
17-7PH/S17700 |
SUS631 |
7/1.4568 X7CrNiAl17 - |
Aviation springs, precision sensing Instruments, instrument elastic elements, high End fasteners |
| Precipitation-hardening stainless steel |
05Cr13Ni8Mo2Al |
13-8Mo/S13800 |
SUS138Mo |
X5CrNiMoAl13-8-2/1 |
Aeroengine core components, Deep-sea precision equipment, high-end medical Medical implant devices |
| Precipitation hardening stainless steel |
06Cr17Ni10Mo2Al |
PH15-7Mo/S15700 |
SUS632 |
X7CrNiMoAl15-7-2/1 |
Chemical precision pumps and valves, Marine equipment Equipped with corrosion-resistant fittings, aviation precision Precision instruments |
| Precipitation-hardening stainless steel |
04Cr12Ni5Cu3Mo |
Custom 450/S45000 |
SUS450 |
X4CrNiCuMo12-5-3/ |
Coastal precision hardware, chemical equipment Spare parts, pump and valve cores, high End medical devices |
| Precipitation hardening stainless steel |
05Cr17Ni6Cu2Al |
17-6PH/S17600 |
SUS635 |
X6CrNiCuAl17-6-2/1. |
Precision elastic components, aviation instruments Watch stands, high-end fasteners, Medical precision tools |
| Precipitation hardening stainless steel |
04Cr¹9Ni9Mo3Al |
PH14-8Mo/S14800 |
SUS148Mo |
X4CrNiMoAl14-8-3/1 |
High-end chemical corrosion-resistant equipment, Marine deep water pipe fittings, navigation Special structural components for aerospace |
| Austenitic stainless steel |
015Cr21Ni26Mo5Cu2 |
N08367 |
SUSN08367 |
X1CrNiMoCu21-26-5/ |
Deep-sea oil and gas equipment, chemical distillation Towers, high-salt wastewater treatment, nuclear engineering Corrosion-resistant components for the industry |
| Austenitic stainless steel |
020 cr20ni25mo4. 5 cu |
Incoloy926/N08926 |
SUS926 |
X1CrNiMoCu20-25-5/ |
Flue gas desulfurization equipment, chemical mixing Medium piping, pharmaceutical fermentation equipment Equipment, high-end components for Marine engineering |
| Austenitic stainless steel |
06Cr18Ni9Cu3 |
304Cu/S30430 |
SUS304Cu |
9/1.4567 X5CrNiCu18 - |
Precision hardware, electronic accessories, I Bath parts, small stamping parts |
| Austenitic stainless steel |
06Cr19Ni13Mo3 |
317L/S31703 |
SUS317L |
X2CrNiMo18-15-4/1. |
Chemical distillation equipment, seawater desalination Piping for chemical and acidic fluids |
| Ferritic stainless steel |
10Cr17 |
430/S43000 |
SUS430 |
X6Cr17/1.4016 |
Home appliance casings, interior decoration, virtual Sanitary hardware, car interiors, daily-use Hardware |
| Ferritic stainless steel |
022Cr12 |
409L/S40903 |
SUS409L |
X2CrTi12/1.4512 |
Car exhaust pipes, household kitchenware, Common decorative panels |
| Ferritic stainless steel |
10Cr17Mo |
434/S43400 |
SUS434 |
X6CrMo17/1.4113 |
Bathroom fixtures, car trims, Outdoor decorative components |
| Ferritic stainless steel |
019Cr18MoTi |
444/S44400 |
SUS444 |
2/1.4521 X2CrMoTi18 - |
Solar energy equipment, water purification equipment Equipment, coastal civil decoration, sanitation Bath components, water heater inner tanks |
| Ferritic stainless steel |
10Cr15 |
439/S43900 |
SUS439 |
X3CrTi17/1.4511 |
Kitchenware inner liner, home appliance panel, Small containers |
| Ferritic stainless steel |
022Cr19Ti |
441/S44100 |
SUS441 |
X2CrTi18/1.4509 |
Kitchen appliances, heating components, Outdoor decoration |
| Ferritic stainless steel |
10Cr13 |
410S/S41008 |
SUS410S |
X6Cr13/1.4000 |
Mechanical parts, civilian hardware, Decorative strips |
| Ferritic stainless steel |
019Cr24Mo4Ti |
446/S44600 |
SUS446 |
X2CrMo25-5-1/1.4597 |
Industrial chimneys, outdoor high-temperature resistant Corrosion components, outside of chemical equipment Shells, large coastal decorative pieces |
| Ferritic stainless steel |
022Cr21Mo3Ti |
445/S44500 |
SUS445 |
3/1.4591 X2CrMoTi21 - |
High-end kitchen and bathroom, water purification equipment, Coastal civilian hardware, decorative surfaces plate |
| Ferritic stainless steel |
022Cr26Mo1Ti |
447/S44700 |
SUS447 |
1/1.4592 X2CrMo26 - |
Coastal construction, industrial anti-corrosion equipment Equipment, long-term outdoor corrosion-resistant structures a |
| Martensitic stainless steel |
12Cr13 |
410/S41000 |
SUS410 |
X12Cr13/1.4006 |
Valves, shafts, fasteners, Tool fittings, mechanical wear parts |
| Martensitic stainless steel |
20Cr13 |
420/S42000 |
SUS420 |
X20Cr13/1.4021 |
Precision cutting tools, medical cutting tools, Valve cores, wear-resistant tools |
| Martensitic stainless steel |
30Cr13 |
420J2/S42020 |
SUS420J2 |
X30Cr13/1.4028 |
Industrial tools, bearings, wear-resistant Mechanical parts, mold fittings |
| Martensitic stainless steel |
9Cr18 |
440C/S44004 |
SUS440C |
X105CrMo17/1.4125 |
High-end bearings, precision tools, Measuring tools, wear-resistant molds, medical Surgical knives |
| Martensitic stainless steel |
11Cr17 |
440B/S44003 |
SUS440B |
X90CrMo18/1.4112 |
Industrial bearings, wear-resistant cutting tools, Mechanical molds, valve fittings, Precision wear-resistant parts |
| Martensitic stainless steel |
14Cr17Ni2 |
431/S43100 |
SUS431 |
2/1.4057 X17CrNi16 - |
Pump shaft, valve stem, gear, Precision mechanical parts, Ocean Five gold |
| Martensitic stainless steel |
17Cr16Ni2 |
440A/S44002 |
SUS440A |
X70CrMo15/1.4109 |
High-end cutting tools, bearings, measuring Tools, wear-resistant molds |
| Martensitic stainless steel |
06Cr17 |
416/S41600 |
SUS416 |
X12CrS13/1.4005 |
Precision screws, instrument fittings, Electronic hardware, automatic turning parts |
| Duplex stainless steel austenitic + iron Plain duplex structure |
022Cr22Ni5Mo3N |
2205/S32205 |
SUS329J3L |
X2CrNiMoN22-5-3/1. |
Oil and gas equipment, chemical pressure capacity Vessels, seawater pipelines, deep-sea engineering cheng |
| Duplex stainless steel austenitic + iron Plain duplex structure |
022Cr25Ni7Mo4N |
2507/S32750 |
SUS329J5L |
X2CrNiMoN25-7-4/1. |
Deep sea oil and gas, chemical desulfurization, Seawater desalination, highly corrosive chemicals Equipment, offshore platform components |
| Duplex stainless steel austenitic + ferritic Bulk duplex structure |
022Cr26Ni7Mo4CuN |
S32760 |
SUSS32760 |
X2CrNiMoCuN25-7-4/ |
Deep-sea vessel piping, Marine oil Gas extraction, seawater lift pump, Highly corrosive chemical pipelines |
| Duplex stainless steel austenitic + ferritic Bulk duplex structure |
022Cr19Ni5Mo3Si2N |
2304/S32304 |
SUS2304 |
X2CrNiMoN19-5-3/1 |
Chemical piping, water treatment equipment Equipment, general Marine engineering components |
| Duplex stainless steel austenitic + ferritic Bulk duplex structure |
022Cr25Ni6Mo2N |
2101/S32101 |
SUS2101 |
X2CrNiN21-1-2/1.4162 |
Building structures, bridge fittings, General chemical equipment |
| Duplex stainless steel austenitic + ferritic Bulk duplex structure |
022Cr27Ni5Mo4N |
2707/S32707 |
SUS2707 |
X2CrNiMoN27-5-4/1. |
Deep sea drilling, high-end chemicals, Corrosion-resistant components for the nuclear industry |
| Precipitation-hardening stainless steel |
04Cr17Ni7Al |
17-4PH/S17400 |
SUS630 |
X5CrNiCuNb17-4/1. |
Aerospace accessories, precision instruments Watches, valves, shafts, high-end Mechanical parts |
| Precipitation-hardening stainless steel |
06Cr17Ni4Cu4Nb |
17-4PH low-carbon improvement Item /S17401 |
SUS630L |
X4CrNiCuNb17-4/1. |
Welded precision structural components, chemical Welding containers, aviation welding Accessories |
| Precipitation hardening stainless steel |
07Cr17Ni7Al |
17-7PH/S17700 |
SUS631 |
7/1.4568 X7CrNiAl17 - |
Aviation springs, precision sensing Instruments, instrument elastic elements, high End fasteners |
| Precipitation-hardening stainless steel |
05Cr13Ni8Mo2Al |
13-8Mo/S13800 |
SUS138Mo |
X5CrNiMoAl13-8-2/1 |
Aeroengine core components, Deep-sea precision equipment, high-end medical Medical implant devices |
| Precipitation hardening stainless steel |
06Cr17Ni10Mo2Al |
PH15-7Mo/S15700 |
SUS632 |
X7CrNiMoAl15-7-2/1 |
Chemical precision pumps and valves, Marine equipment Equipped with corrosion-resistant fittings, aviation precision Precision instruments |
| Precipitation-hardening stainless steel |
04Cr12Ni5Cu3Mo |
Custom 450/S45000 |
SUS450 |
X4CrNiCuMo12-5-3/ |
Coastal precision hardware, chemical equipment Spare parts, pump and valve cores, high End medical devices |
| Precipitation hardening stainless steel |
05Cr17Ni6Cu2Al |
17-6PH/S17600 |
SUS635 |
X6CrNiCuAl17-6-2/1. |
Precision elastic components, aviation instruments Watch stands, high-end fasteners, Medical precision tools |
| Precipitation hardening stainless steel |
04Cr¹9Ni9Mo3Al |
PH14-8Mo/S14800 |
SUS148Mo |
X4CrNiMoAl14-8-3/1 |
High-end chemical corrosion-resistant equipment, Marine deep water pipe fittings, navigation Special structural components for aerospac |
