304/304L STAINLESS STEEL SHEET
Chemical composition:
304 stainless steel grades: 0Cr18Ni9 (0Cr19Ni9) 06Cr19Ni9 S30408
Chemical composition: C: ≤0.08, Si: ≤1.0 Mn: ≤2.0, Cr: 18.0～20.0, Ni: 8.0～10.5, S: ≤0.03, P: ≤0.035 N≤0.1.
With 304L
304L is more corrosion resistant, and 304L contains less carbon.
304 has a wide range of uses, with good corrosion resistance, heat resistance, low temperature strength and mechanical characteristics; good hot workability such as stamping and bending, no heat treatment and hardening phenomenon (non-magnetic, use temperature -196 °C ~ 800 °C).
304L has excellent resistance to grain boundary corrosion after welding or after stress relief; it can also maintain good corrosion resistance without heat treatment, and the use temperature is
Basic situation:
There are two types of hot rolling and cold rolling according to the manufacturing method, and they are divided into 5 categories according to the structural characteristics of steel types: austenitic type, austenite-ferrite type, ferrite type, martensite type, and precipitation hardening type. It is required to withstand the corrosion of various acids such as oxalic acid, sulfuric acid-ferric sulfate, nitric acid, nitric acid-hydrofluoric acid, sulfuric acid-copper sulfate, phosphoric acid, formic acid, acetic acid, etc. It is widely used in chemical industry, food, medicine, papermaking, petroleum, atomic energy, etc. Industry, as well as various parts for construction, kitchen utensils, tableware, vehicles, household appliances.
The surface of the stainless steel plate is smooth and has high plasticity, toughness and mechanical strength, and is resistant to corrosion by acids, alkaline gases, solutions and other media. It is an alloy steel that does not easily rust, but it is not absolutely not rusty.
Stainless steel plates are divided into hot-rolled and cold-rolled according to the manufacturing method, including thin cold plates with a thickness of 0.02-4 mm and medium-thick plates with a thickness of 4.5-100 mm.
In order to ensure that the mechanical properties such as yield strength, tensile strength, elongation and hardness of various stainless steel plates meet the requirements, the steel plates must undergo annealing, solution treatment, aging treatment and other heat treatments before delivery 05.10 88.57.29.38 special symbols
The corrosion resistance of stainless steel mainly depends on its alloy composition (chromium, nickel, titanium, silicon, aluminum, etc.) and internal structure, and the main role is chromium. Chromium has high chemical stability, can form a passivation film on the surface of steel, isolate the metal from the outside, protect the steel plate from oxidation, and increase the corrosion resistance of the steel plate. After the passivation film is destroyed, the corrosion resistance decreases.
General characteristics:
304 stainless steel plate has a beautiful surface and a variety of possibilities
Good corrosion resistance, durable than ordinary steel
304 stainless steel plate
304 stainless steel plate
Good corrosion resistance
High strength, so the possibility of using thin plates is high
High temperature oxidation resistance and high strength, so it can resist fire
Normal temperature processing, ie easy plastic processing
Because no surface treatment is required, it is simple and easy to maintain
Clean and high finish
Good welding performance
use:
304 is widely used in household goods (category 1, 2 tableware), cabinets, indoor pipelines, water heaters, boilers, bathtubs, auto parts, medical appliances, building materials, chemicals, food industry, agriculture, ship parts.
| Mechanical Property | |||||
| ASTM | TS(Mpa)≥ | YS（Mpa）≥ | EL(%)≥ | Hardness | |
| HB | HRB | ||||
| 201 | 520 | 275 | 40 | 241 | 100 |
| 202 | 520 | 275 | 40 | 207 | 95 |
| 301 | 520 | 205 | 40 | 207 | 95 |
| 304 | 520 | 205 | 40 | 20 | 90 |
| 304L | 480 | 175 | 40 | 187 | 90 |
| 309S | 520 | 205 | 40 | 187 | 90 |
| 310 | 520 | 205 | 40 | 187 | 90 |
| 310S | 520 | 205 | 40 | 187 | 90 |
| 316 | 520 | 205 | 40 | 187 | 90 |
| 316L | 480 | 175 | 40 | 187 | 90 |
| 316Ti | 520 | 205 | 40 | 187 | 90 |
| 317L | 480 | 175 | 40 | 187 | 90 |
| 321 | 520 | 205 | 40 | 187 | 90 |
| 430 | 450 | 205 | 22 | 183 | 88 |
| 904L | 490 | 216 | 35 | ||
| 2205 | 640 | 25 | |||
| Chemical Composition | ||||||||||||
| Chemical Composition(%) | ||||||||||||
| C | Si | Mn | P | S | Ni | Cr | Mo | Cu | N | Other | ||
| 1Cr17Mn6Mi5N | 201 | 0.15 | 1.00 | 5.5-5.7 | 0.06 | 0.03 | 3.3-3.5 | 16-18 | _ | _ | 0.05-0.25 | |
| 1Cr18Mn8Mi5N | 202 | 0.15 | 1.00 | 7.5-10 | 0.06 | 0.03 | 4.0-6.0 | 17-19 | _ | _ | 0.05-0.25 | |
| 1Cr18Mn8Mi5N | 301 | 0.15 | 1.00 | 2.00 | 0.07 | 0.03 | 6.0-8.0 | 16-18 | _ | _ | 0.10 | |
| 0Cr18Ni9 | 304 | 0.07 | 1.00 | 2.00 | 0.035 | 0.03 | 8.1-10.0 | 17-19 | _ | _ | _ | |
| 0Cr18Ni9 | 309S | 0.08 | 1.00 | 2.00 | 0.035 | 0.03 | 12.0-15.0 | 22-24 | _ | _ | _ | |
| 0Cr25Ni20 | 310S | 0.08 | 1.00 | 2.00 | 0.035 | 0.03 | 19.0-22.0 | 24-26 | _ | _ | _ | |
| 0Cr17Ni12Mo2 | 316 | 0.08 | 1.00 | 2.00 | 0.035 | 0.03 | 10.0-14.0 | 16-18.5 | 2.0-3.0 | _ | _ | |
| 00Cr17Ni14Mo2 | 316L | 0.08 | 1.00 | 2.00 | 0.035 | 0.03 | 12.0-15.0 | 16-18 | 2.0-3.0 | _ | _ | |
| 0Cr18Ni12Mo3Ti | 316Ti | 0.08 | 1.00 | 2.00 | 0.035 | 0.03 | 11.0-14.0 | 16-19 | 2.5-3.5 | _ | _ | Ti≥5C |
| 0Cr18Ni12Mo3Ti | 317L | 0.03 | 1.00 | 2.00 | 0.035 | 0.03 | 11.0-15.0 | 18-20 | 3.0-4.0 | _ | _ | |
| 1Cr18Ni9Ti | 321 | 0.12 | 1.00 | 2.00 | 0.035 | 0.03 | 8.0-11.0 | 17-19 | _ | _ | _ | Ti5C-0.70 |
| 1Cr12 | 430 | 0.12 | 1.00 | 2.00 | 0.035 | 0.03 | 0.60 | 16-18 | _ | _ | _ | |
| 00Cr20Ni25Mo4.5Cu | 904L | 0.02 | 1.00 | 2.00 | 0.035 | 0.03 | 23.0-28.0 | 19-23 | 4.0-5.0 | 1.0-2.0 | 0.14-0.20 | |
| 00Cr2Ni5Mo3N | 2205 | 0.03 | 1.00 | 2.00 | 0.035 | 0.02 | 4.5-6.5 | 21-23 | 2.5-3.5 | _ | _ | |
| Stainless steel national standard _ stainless steel implementation standard _ national stainless steel grade comparison table | ||||||||||
| No | China GB | Japan | United States | Korea | EU | India | Australia | Taiwan, China | ||
| Old grade | New grade（07.10) | JIS | ASTM | UNS | KS | BS EN | IS | IS | CNS | |
| Austenitic stainless steel | ||||||||||
| 1 | lCrl7Mn6Ni5N | 12Crl7Mn6Ni5N | SUS201 | 201 | S20100 | STS201 | 1.4372 | 10Crl7Mn6Ni4N20 | 201-2 | 201 |
| 2 | lCrl8Mn8NI5N | 12Crl8Mn9Ni5N | SUS202 | 202 | S20200 | STS202 | 1.4373 | - | 202 | |
| 3 | lCrl7Ni7 | 12Crl7Ni7 | SUS301 | 301 | S30100 | STS301 | 1.4319 | 10Crl7Ni7 | 301 | 301 |
| 4 | 0Crl8Ni9 | 06Crl9Nil0 | SUS304 | 304 | S30400 | STS304 | 1.4301 | 07Crl8Ni9 | 304 | 304 |
| 5 | 00Crl9Nil0 | 022Crl9Nil0 | SUS304L | 304L | S30403 | STS304L | 1.4306 | 02Crl8Nill | 304L | 304L |
| 6 | 0Crl9Ni9N | 06Crl9Nil0N | SUS304N1 | 304N | S30451 | STS304N1 | 1.4315 | - | 304N1 | 304N1 |
| 7 | 0Crl9Nil0NbN | 06Crl9Ni9NbN | SUS304N2 | XM21 | S30452 | STS304N2 | - | - | 304N2 | 304N2 |
| 8 | 00Crl8Nil0N | 022Crl9Nil0N | SUS304LN | 304LN | S30453 | STS304LN | - | - | 304LN | 304LN |
| 9 | lCrl8Nil2 | 10Crl8Nil2 | SUS305 | 305 | S30500 | STS305 | 1.4303 | - | 305 | 305 |
| 10 | 0Cr23Nil3 | 06Cr23Nil3 | SUS309S | 309S | S30908 | STS309S | 1.4833 | - | 309S | 309S |
| 11 | 0Cr25Ni20 | 06Cr25Ni20 | SUS310S | 310S | S31008 | STS310S | 1.4845 | - | 310S | 310S |
| 12 | 0Crl7Nil2Mo2 | 06Crl7Nil2Mo2 | SUS316 | 316 | S31600 | STS316 | 1.4401 | 04Crl7Nil2Mo2 | 316 | 316 |
| 13 | 0Crl8Nil2Mo3Ti | 06Crl7Nil2Mo2Ti | SUS316TI | 316TI | S31635 | - | 1.4571 | 04Crl7Nil2MoTi20 | 316Ti | 316TI |
| 14 | 00Crl7Nil4Mo2 | 022Crl7Nil2Mo2 | SUS316L | 316L | S31603 | STS316L | 1.4404 | ~02Crl7Nil2Mo2 | 316L | 316L |
| 15 | 0Crl7Nil2Mo2N | 06Crl7Nil2Mo2N | SUS316N | 316N | S31651 | STS316N | - | - | 316N | 316N |
| 16 | 00Crl7Nil3Mo2N | 022Crl7Nil3Mo2N | SUS316LN | 316LN | S31653 | STS316LN | 1.4429 | - | 316LN | 316LN |
| 17 | 0Crl8Nil2Mo2Cu2 | 06Crl8Nil2Mo2Cu2 | SUS316J1 | - | - | STS316J1 | - | - | 316J1 | 316J1 |
| 18 | 00Crl8Nil4Mo2Cu2 | 022Crl8Nil4Mo2Cu2 | SUS316J1L | - | - | STS316J1L | - | - | - | 316J1L |
| 19 | 0Crl9Nil3Mo3 | 06Crl9Nil3Mo3 | SUS317 | 317 | S31700 | STS317 | - | - | 317 | 317 |
| 20 | 00Crl9Nil3Mo3 | 022Crl9Nil3Mo3 | SUS317L | 317L | S31703 | STS317L | 1.4438 | - | 317L | 317L |
| 21 | 0Crl8Nil0Ti | 06Crl8NillTi | SUS321 | 321 | S32100 | STS321 | 1.4541 | 04Crl8Nil0Ti20 | 321 | 321 |
| 22 | 0Crl8NillNb | 06Crl8NillNb | SUS347 | 347 | S34700 | STS347 | 1.455 | 04Crl8Nil0Nb40 | 347 | 347 |
| Austenitic-ferritic stainless steel (duplex stainless steel) | ||||||||||
| 23 | 0Cr26Ni5Mo2 | - | SUS329J1 | 329 | S32900 | STS329J1 | 1.4477 | - | 329J1 | 329J1 |
| 24 | 00Crl8Ni5Mo3Si2 | 022Crl9Ni5Mo3Si2N | SUS329J3L | - | S31803 | STS329J3L | 1.4462 | - | 329J3L | 329J3L |
| 0Crl8Nil0Ti ferritic stainless steel | ||||||||||
| 25 | 0Crl3AI | 06Crl3Al | SUS405 | 405 | S40500 | STS405 | 1.4002 | 04Crl3 | 405 | 405 |
| 26 | - | 022CrllTi | SUH409 | 409 | S40900 | STS409 | 1.4512 | - | 409L | 409L |
| 27 | 00Crl2 | 022Crl2 | SUS410L | - | - | STS410L | - | - | 410L | 410L |
| 28 | lCrl7 | 10Crl7 | SUS430 | 430 | S43000 | STS430 | 1.4016 | 05Crl7 | 430 | 430 |
| 29 | lCrl7Mo | 10Crl7Mo | SUS434 | 434 | S43400 | STS434 | 1.4113 | - | 434 | 434 |
| 30 | - | 022Crl8NbTi | - | - | S43940 | - | 1.4509 | - | 439 | 439 |
| 31 | 00Crl8Mo2 | 019Crl9Mo2NbTi | SUS444 | 444 | S44400 | STS444 | 1.4521 | - | 444 | 444 |
| Martensitic stainless steel | ||||||||||
| 32 | lCrl2 | 12Crl2 | SUS403 | 403 | S40300 | STS403 | - | - | 403 | 403 |
| 33 | lCrl3 | 12Crl3 | SUS410 | 410 | S41000 | STS410 | 1.4006 | 12Crl3 | 410 | 410 |
| 34 | 2Crl3 | 20Crl3 | SUS420J1 | 420 | S42000 | STS420J1 | 1.4021 | 20Crl3 | 420 | 420J1 |
| 35 | 3Crl3 | 30Crl3 | SUS420J2 | - | - | STS420J2 | 1.4028 | 30 Crl3 | 420J2 | 420J2 |
| 36 | 7Crl7 | 68Crl7 | SUS440A | 440A | S44002 | STS440A | - | - | 440A | 440A |
