Stainless Steel Category
1.Austenitic stainless steel
200 series austenite – grades include 202, 203, 204, 205, etc. These
grades are non-magnetic, cannot be heat treated, have excellent molding
and processing properties, and are widely used in washing machines,
bathtubs, etc.
300 series austenite – grades include 301, 302, 303, 304, 305, 308,
309, 310, 314, 316, 317, 321, 330, 347, etc., with obvious advantages in
cold working performance. These grades are non-magnetic, not heat
treatable, and have excellent formability. Adding the element molybdenum
greatly improves the corrosion resistance. These grades are widely used
in food equipment, chemical equipment, etc.
2.martensitic stainless steel
400 series martensite – grades include 403, 410, 414, 416, 420, 422,
431, 440, etc., which are magnetic and heat treatable. They are mainly
used in fasteners, pump shafts and turbine blades.
3.ferritic stainless steel
400 series ferrite – grades include 405, 409, 429, 430, 434, 436,
442, 446, etc., which are magnetic but cannot be heat treated. These
grades are mainly used in automotive interiors and kitchen appliances
4.Precipitation hardened stainless steel
Precipitation hardening type – grades include 13-8, 15-5, 15-7, 17-4,
17-7, etc., mainly used in valves, gears, petrochemical equipment, etc.
5.duplex steelstainless steel
Duplex steel – grades include 329, 2205, 2304, 2507, 3RE60, etc.
These grades have stronger stress corrosion cracking resistance than
austenite and stronger hardness than pure ferrite. Widely used in
pipelines, pressure shaft systems, etc.
| Comparison table of major domestic and foreign brands |
| China GB | Germany | France NF | ISO | Japan JIS | Sweden SS | U.K BS | USA |
| DIN | W-Nr. | ASTM | UNS |
| Austenitic stainless steel | 1Cr18Ni9 | X12CrNi18 8 | 1.4300 | Z10CN18.09 | – | SUS 302 | – | 302S25 | 302 | S30200 |
| 0Cr19Ni9 (0Cr18Ni9) | X5CrNi18 10 | 1.4301 | Z6CN18.09 | 11 | SUS 304 | 2332 2333 | 304S15 | 304 304H | S30400 |
| 0Cr17Ni12Mo2 | X5CrNiMo17 12 2 X5CrNiMo17 13 3 | 1.4401 1.4436 | Z6CND17.11 Z6CND17.12 | 20 20a | SUS 316 | 2347 2343 | 316S16 316S31 | 316 | S31600 |
| 00Cr17Ni14Mo2 | X2CrNiMO18 14 3 | 1.4435 | Z2CNDT17.13 | 19 19a | SUS 316L | 2353 | 316S11 316S12 | 316L | S31603 |
| 1Cr18Ni9Ti | X12CrNiTi18 9 | 1.4878 | Z6CNT18.12 | X6CrNiTi18 10 | SUS 321 | 2337 | 321S20 | 321 | S32100 |
| 0Cr18Ni11Ti (0Cr18Ni9Ti) | X6CrNiTi18 10 | 1.4541 | Z6CNT18.10 | 15 | SUS 321 | 2337 | 321S12 321S31 | 321 | S32100 |
| Austenitic-ferritic type |
| 0Cr26Ni5Mo2 | X8CrNiMo27 5 | 1.4460 | – | – | SUS 329J1 | 2324 | – | 329 | S32900 |
| martensitic stainless steel | 1Cr13 | X10Cr13 | 1.4006 | Z12C13 | 3 | SUS 410 | 2302 | 410S21 | 410 | S41000 |
| 2Cr13 | X20Cr13 | 1.4021 | Z20C13 | 4 | SUS 420J1 | 2303 | 420S37 | 420 | S42000 |
| 3Cr13 | X30Cr13 | 1.4028 | Z30C13 | 5 | SUS 420J2 | 2304 | 420S45 | － | － |
| 4Cr13 | X38Cr13 | – | Z40C14 | – | – | – | – | – | – |
| 1Cr17Ni2 | X20CrNi17 2 | 1.4057 | Z15CN16.02 | － | SUS 431 | 2321 | 431S29 | 431 | S43100 |
| precipitation hardening | 0Cr17Ni4Cu4Nb | X5CrNiCuNb17 14 | 1.4542 | Z6CNU17.04 | 1 | SUS 630 | – | – | 630 | S17400 |
| 0Cr17Ni7Al | X7CrNiAl17 7 | 1.4568 | Z8CNA17.07 | 2 | SUS 631 | – | – | 631 | S17700 |
| 0Cr15Ni7Mo2A | X7CrNiMoA15 7 | 1.4532 | Z8CNDA17.07 | 3 | SUS 632 | – | – | 632 | S15700 |
Chemical composition and physical properties table of main stainless steel materials
| Material | Physical Property |
Yield Strength
(Mpa) | ultimate tensile strength
(Mpa) | Elongation（% min.） | Hardness |
| 904L | ≥220 | ≥490 | ≥36 | 70-90 Rockwell B |
| 316L | ≥177 | ≥480 | ≥40 | ≤187HB;≤90HRB;≤200HV |
| 316Ti | ≥205 | ≥520 | ≥40 | ≤200HV |
| 304 | ≥205 | ≥520 | ≥40 | ≤200HV |
| 304L | ≥175 | ≥480 | ≥40 | ≤200HV |
| 201 | ≥275 | ≥520 | 55-60 | ≤180HRB |
| 321 | ≥205 | ≥515 | ≥40 | ≤95Rb |
| 254SMO | ≥310 | ≥655 | ≥35 |
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| 440c | ≥245 | ≥590 | ≥15 |
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| C276 | 275 | 690 | ≥40 | ≤100（HRB） |
| C22 | 283 | 690 | ≥40 |
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| N08020 | ≥241 | ≥551 | ≥30 | ≤95 RB |
| Material | Chemical Composition(%) |
| C | Si | Mn | P | S | Cr | Ni | Mo | Cu | N | Ti | W | Co | Fe | V | Nb |
| 904L | ≤0.020 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.035 | 19.00-23.00 | 23.00-28.00 | 4.00- 5.00 | 1.00- 2.00 | 0.1 |
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| 316L | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.035 | 16.00-18.00 | 10.00-14.00 | 2.00- 3.00 | / | / |
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| 316Ti | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.035 | ≤0.030 | 16.00-19.00 | 10.00-14.00 | 1.80- 2.50 | 0.20- 0.70 | / |
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| 304 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.00-20.00 | 8.00- 10.50 | / | / | / |
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| 304L | ≤0.030 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.030 | 18.00-20.00 | 8.00-10.50 | / | / | / |
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| 201 | ≤0.15 | ≤0.75 | 5.50-7.50 | ≤0.060 | ≤0.030 | 16.00-18.00 | 3.50- 5.50 | / | / | ≤0.25 |
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| 321 | ≤0.08 | ≤0.75 | ≤2.0 | ≤0.045 | ≤0.030 | 17.00-19.00 | 9.00- 12.00 | / | ≤9.999 | ≤0.10 | ≤0.70 |
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| 254SMO | ≤0.02 | ≤0.80 | ≤1.0 | ≤0.03 | ≤0.01 | 19.5-20.5 | 17.5- 18.5 | 6.0- 6.50 | 0.5-1.0 | 0.18-0.22 |
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| 440c | 0.95-1.20 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 16.00-18.00 | ≥0.6 | ≥0.75 | / | / |
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| C276 | ≤0.01 | ≤0.08 | ≤1.00 | ≤0.040 | ≤0.030 | 14.50-16.50 | ≥57 | 15.0- 17.0 |
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| 3.0-4.5 | ≤2.5 | 4.0-7.0 |
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| C22 | ≤0.015 | ≤0.08 | ≤0.5 | ≤0.02 | ≤0.02 | 20-22.5 |
| 12.5- 14.5 |
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| 2.5-3.5 | ≤2.5 | 2.0-6.0 | ≤0.35 |
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| N08020 | ≤0.06 | ≤0.80 | ≤1.00 | ≤0.035 | ≤0.030 | 19.00-20.00 | 36.0- 38.0 | 2.0- 3.0 | 3.0-4.0 |
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| 36-38 |
| 0.5-0.7 |
Stainless steel tube and stainless steel rod packaging：
- Ordinary packaging is bundled with steel straps.
- Oil paper bag packaging
- Customized wooden box
Stainless steel plate packaging：
- Without package requirement
- Wooden pallet package and fixed by steel belt
- Paper boardcard package
- Customized package way
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