304 Stainless Steel Tube/Pipe:
Introduction:
304 stainless steel pipe standard: 304 stainless steel pipe is a brand of stainless steel produced according to American ASTM standard.
304 stainless steel pipe is equivalent to 0Cr19Ni9 (0Cr18Ni9) stainless steel pipe in China. 304 contains 19% chromium and 9% nickel. Standard for the trip to Germany: din2462.
Properties of 304 stainless steel: 304 stainless steel is the most widely used chromium nickel stainless steel, with good corrosion resistance, heat resistance, low temperature strength and mechanical properties. It is resistant to corrosion in the atmosphere. If it is industrial atmosphere or heavily polluted area, it needs to be cleaned in time to avoid corrosion. It is suitable for food processing, storage and transportation. It has good machinability and weldability.
use:
304 stainless steel pipe is a kind of universal stainless steel pipe, which is widely used to make equipment and parts with good comprehensive performance (corrosion resistance and formability). Such as food equipment, general chemical equipment, atomic energy industry equipment.
Chemical composition specification:
304 stainless steel pipe C Si Mn p s Cr Ni Mo
SUS304 ≤0.08 ≤1.00 ≤2.00 ≤0.05 ≤0.03 18.00-20.00 8.25~10.50 -
304 stainless steel is a kind of universal stainless steel material, and its antirust performance is better than that of 200 series stainless steel. High temperature resistance is also good, up to 1000-1200 degrees. 304 stainless steel has excellent corrosion resistance and intergranular corrosion resistance. A kind of
Features:
304 stainless steel has strong corrosion resistance in nitric acid below boiling temperature of 65%. It also has good corrosion resistance to alkali solution and most organic and inorganic acids. A kind of high alloy steel that can resist corrosion in air or chemical corrosion medium. Stainless steel has beautiful surface and good corrosion resistance. It doesn't need to be treated by color plating and other surface treatment. It plays the inherent surface properties of stainless steel and is used in many kinds of steel. It is usually called stainless steel. The representative properties are 13 chromium steel, 18-8 chromium nickel steel and other high alloy steel. From the metallographic point of view, because the stainless steel contains chromium, a very thin chromium film is formed on the surface, which is separated from the oxygen invading into the steel and plays a role of corrosion resistance. In order to maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 12% chromium.
ASTM 304/304L Stainless Steel Tube/Pipe | ||||||||
Product: | ASTM 304/304L Stainless Steel Tube/Pipe | |||||||
Material: | Stainless Steel 200 series,300series,400series | |||||||
Standard: | ASTM/AISI/DIN/JIS/GB…. | |||||||
Dimension: | Thickness:0.3MM-6MM,OD:8MM-325MM | |||||||
Length: | Random Length | |||||||
Surface Finish: | No.1/2B/No.4/4K/6K/8K/HL/Matt | |||||||
Tchnology: | Cold Rolled ,Hot Rolled | |||||||
MOQ: | 1TON | |||||||
Package: | Standard Export Packing,Or As Per Your Requirement | |||||||
Application: | Railings,Staircase Railing Balustrade,Windows,Balustrsde System,Equipment Manufacturing and Maintenance,etc. |
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 |
Which is better ss304 or ss316?
Since Type 316 stainless steel alloy contains molybdenum bearing it has a greater resistance to chemical attack than 304. Type 316 is durable, easy-to-fabricate, clean, weld and finish. It is considerably more resistant to solutions of sulfuric acid, chlorides, bromides, iodides and fatty acids at high temperature.
What is good quality stainless steel?
304 stainless steel is the most common form of stainless steel used around the world due to excellent corrosion resistance and value. 304 can withstand corrosion from most oxidizing acids. That durability makes 304 easy to sanitize, and therefore ideal for kitchen and food applications.
What is the difference between 304, 304H and 304L?
In fact, the content of chromium and nickel is 304 stainless steel, and the composition contains 18% chromium (Cr) and 8% nickel (Ni), but the main difference lies in the carbon content.
304L is an ultra-low carbon stainless steel. The carbon content is reduced to less than 0.03%, which can avoid intergranular corrosion. In theory, the effect of stress corrosion resistance is stronger than that of 304, but the effect is not obvious in practical applications. The purpose of reducing carbon and adding titanium is the same, but the smelting cost of titanium-added 321 is higher, the molten steel is thick, and the price is more expensive.
The H in 304H refers to high temperature. High carbon content is the guarantee of high temperature strength. GB150 requires that when austenitic steel is used above 525 degrees, the carbon content should not be less than 0.04%. Carbide is the strengthening phase, especially the high temperature strength. Better than pure austenite.
Among the three, the highest carbon content is 304H, the lowest carbon content is 304L, and the carbon content of 304 stainless steel is between the two. The higher the carbon content, the worse the corrosion resistance of stainless steel and the easier it is to rust. The difference in carbon content also causes the price to be different, or the requirements for different uses are also different.
Why is stainless steel so expensive?
Stainless steel is more expensive to produce because of the addition of the variety of alloying elements, such as iron, chromium, nickel, manganese and copper. … The chromium attaches itself to oxygen more readily than iron and thus creates a chromium oxide layer which protects the metal from degradation.
What is the safest stainless steel?
Stainless steel cookware is generally recognized as a safe material for cookware. Any good quality stainless steel, be it 304 or 316 stainless steel, is a better choice than most of the other available materials. For example, coated aluminum pans lose their non-stick over time.
Quality First, Safety Guaranteed