Description
304 Stainless Steel Pipe
304 stainless steel pipe is a versatile stainless steel that is widely used in the manufacture of equipment and equipment that require good overall performance (corrosion resistance and molding).Stainless steel 304 is a brand of stainless steel manufactured according to the ASTM standard, the equivalent of 0Cr19Ni9 ( 0Cr18Ni9 ) stainless steel, contains ≥18% of chromium and ≥8% nickel.
Ss 304 is the most widely used stainless steel, heat resistant steel, practical steel, Chinese steel. Used for food production equipment, common chemical equipment, nuclear energy, etc.
CHINESE NAME:304 Stainless Steel Pipe APPLICATIONS:SHIPBUIDING,OFFSHORE,CHEMICAL INDUSTRY,ETC
INTERNATIONAL NAME:TP 304 Stainless Steel Pipe SHAPE: ROUND,SQUARE,RECTANGULAR,HEX.
PERFORMANCE:STAINLESS METERIAL:TP304,SS304,304,STAINLESS STEEL 304
CATALOGUE:
1 economic role 2 use 3 in detail 4 process 5 differences and connections 6 classification
TP 304 / Ss304 Stainless Steel Pipe ECONNOMIC ROLE
TP 304/ Ss304 Stainless steel seamless pipe export is an important part of China’s export economy, it plays an important role in stimulating China’s economic growth, however, China’s foreign trade of stainless steel, stainless steel of China’s export met great resistance.
The TP 304/ Ss304 stainless steel pipe is used as a stainless steel tube and is used for the use of food equipment, general chemical equipment and equipment for the atomic energy industry.
The stainless steel rust resistance is stronger than the stainless steel materials of the 200 series. It is also good for high temperature, which can be up to 1000-1200 degrees. TP304/SS304 stainless steel has excellent corrosion resistance and good corrosion resistance.
304 stainless steel material has a strong resistance to corrosion in nitric acid, which is below the boiling temperature of less than 65%. Alkaline solution and most organic acids and inorganic acids also have good corrosion resistance.
Tp304/ ss304 Stainless Steel Pipe Od Tolerence.
| TOLERANCE GRADE | OD TOLERACE |
| D1 | ±1.5%，MIN ±0.75 mm |
| D2 | ±1.0%。MIN ±0.50 mm |
| D3 | ±0.75%．MIN ±0.30 mm |
| D4 | ±0.50%。MIN ±0.10 mm |
ASTM A312 TP304/ Ss304 304 Stainless Steel Seamless Pipe / Welded Pipe CACULATOR:(OD-W)*W*0.02491=KG/METER OD=OUT DIAMETER W=WALL THICKNESS
TP304 / Ss304 304 Stainless Steel Pipe DETAILED INTRODUCTION:
Products according to ASTM A312 / ASTM A213 / ASTM A269
( fluid conveying stainless steel seamless steel tube ) stainless steel seamless tube ( boiler, stainless steel seamless steel tubes for heat exchanger ),
decorative welded stainless steel pipe ,
building decorative stainless steel welded pipe ( JG/T 3030-1995 ),
all pass strict examination, conform to the requirements of the national standard specifications material 321/1 304/
Mechanical properties of tp304/ss304 stainless steel seamless pipe:
| grade | y.sσb/MPa | t.sδ5(%) |
| tp304/ss304 | ≥450 | ≥40 |
| tp321 | ≥560 | ≥40 |
| tp316l | ≥490 | ≥40 |
| tp347h | ≥550 | ≥35 |
| s31803/2205 | ≥550 | ≥35 |
TP304/ Ss304 304 Stainless Steel Pipe Excutive Standard:
For 304 stainless steel, the Ni element in its composition is very important, which directly determines the corrosion resistance of 304 stainless steel and its value.
The most important elements in 304 are Ni and Cr, but they are not limited to these two elements.
Specific requirements are specified by product standards. The common judgment in the industry is that as long as the Ni content is greater than 8% and the Cr content is greater than 18%, it can be considered as 304 stainless steel.
This is why the industry calls this type of stainless steel 18/8 stainless steel.
In fact, the relevant product standards have very clear regulations for 304, and these product standards have some differences for different shapes of stainless steel.
Below are some common product standards and tests.
To determine whether a material is 304 stainless steel, it must meet the requirements of each element in the product standard. As long as one does not meet the requirements, it cannot be called 304 stainless steel.
| 304 | C | Mn | P | S | Si | Cr | Ni |
| require，% | ≤0.08 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1.00 | 18.0–20.0 | 8.0-11.0 |
| 304 | C | Mn | P | S | Si | Cr | Ni | N |
| require，% | ≤0.07 | ≤2.00 | ≤0.045 | ≤0.030 | ≤0.75 | 17.5–19.5 | 8.0–10.5 | ≤0.10 |
| SUS 304 | C | Mn | P | S | Si | Cr | Ni |
| require，% | ≤0.08 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1.00 | 18.0–20.0 | 8.0-10.5 |
| SUS 304 | C | Mn | P | S | Si | Cr | Ni |
| require，% | ≤0.08 | ≤2.00 | ≤0.045 | ≤0.030 | ≤1.00 | 18.0–20.0 | 8.0-10.5 |
The above four standards are just a few common standards. In fact, there are more than these standards mentioned in ASTM and JIS 304.
In fact, each standard has different requirements for 304, so to determine whether a material is 304, the accurate expression should be whether it meets the 304 requirements in a product standard.
The material certificate generally needs to issue the following types of reports: detailed standard specification comparison: as of 2015-12-08
| No. | Standard / S30400 | C | Mn | P | S | Si | Cr | Ni | N | Cu |
| 1 | ASTM A276/A276M-15 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | ||
| 2 | ASTM A959-11 | 0.07 | 2.00 | 0.045 | 0.030 | 1.00 | 17.5-19.5 | 8.0-11.0 | ||
| 3 | ASTM A240/A240M-15a | 0.07 | 2.00 | 0.045 | 0.030 | 0.75 | 17.5-19.5 | 8.0-10.5 | ||
| 4 | ASTM A182/A182M-15 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | 0.10 | |
| 5 | ASTM A193/A193M-15 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | ||
| 6 | ASTM A269/A269M-15 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | ||
| 7 | ASTM A312/A312M-15a | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | ||
| 8 | ASTM A320/A320M-15a | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | ||
| 9 | ASTM A403/A403M-15 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | ||
| 10 | ASTM A493-09(2013) | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-10.5 | 0.10 | 1.00 |
| 11 | ASTM A554-15a (MT-304) | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 | ||
| 12 | JIS G4303:2012 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-10.5 | ||
| 13 | JIS G4304:2012 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-10.5 | ||
| 14 | JIS G4305:2012 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-10.5 | ||
| 15 | GB/T 20878-2007 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 |
Tp304 / SS 304 304 Stainless Steel Pipe PRODCUTION PROCESS
COLD DRAWN ( TP304 / SS 304 304 Stainless Steel Pipe seamless pipe) :
The tp304 / ss 304 stainless steel seamless pipe is a brand of stainless steel manufactured according to the ASTM standard, 304 stainless steel pipe are equivalent to China’s 0Cr19Ni9 (0Cr18Ni9) stainless steel pipe. 304 contains 18% of chromium and 8% nickel.
304 is the most widely used for stainless steel, the equipment for food, general chemical equipment, and the atomic energy industry.
SS 304 is a versatile stainless steel tube that is widely used to make equipment and parts that require good overall performance (corrosion resistance and molding).
304 is the most widely used stainless steel, heat resistant steel. Used in food production equipment, chemical equipment, nuclear power, etc.
tp304 / ss304 stainless steel pipe chemical composition specification C Si Mn P S Cr Ni (nickel) Mo
SUS304 less than or less than 0.08 is less than or equal to 1.00 or less than 0.03, or less than 0.05, 0.03, 18.00-20.00, 8.25 ~ 10.50
Classification of TP304/SS 304 stainless steel pipe has a lot of kinds, the first is the seamless pipe and ERW EFW pipe,
the second is the most basic classification structure with TP304/SS 304 stainless steel pipe and industrial fluid with TP304/SS 304 stainless steel pipe.
There is also a division of the national, Japanese and American standard
TP304 / Ss304 304 Stainless Steel Seamless & Welded Pipe In Stock
1/2”-16” SCH10 40 80
analysis of performance:
TP304 / SS 304 stainless steel pipe has good corrosion resistance, excellent corrosion performance and cold processing and stamping performance, which can be used as a heat-resistant stainless steel.
At the same time, the steel – 180 ℃ under the condition of the mechanical properties of this dismal disease.
The plastic, toughness and cold processing of steel in solid solution are good. The production and usage of 304 stainless steel are the largest and the most widely used steel types, which are resistant to corrosion in dielectric acid and atmosphere and water.
TP304 / SS304 stainless steel has a good cold and hot working performance, can be in all kinds of cold and hot working process,Heat treatment process
304 stainless steel pipe with solid solution treatment temperature of 1080-1100 ℃, cooling water or air cooling, Cold intermediate annealing temperature more than in 850-970 ℃, heat preservation water after a certain time.
After the solid solution, the tissue of the steel is the austenitic tissue, and sometimes there is a small amount of ferrite.
TP304 / SS304 stainless steel thin plate is used in the application process, often used in cold molding operation. Its cold molding performance is an important technical index to measure the success of the molding and yield.
304 Stainless Steel Pipe Applications:
1. SHIPBUILDING INDUSTRY
2. CHEMICAL INDUSTRY
3. WATER INDUSTRY
4. STEEL INDSUTRY
5. POWER STATION INDUSTRY
6. OIL&GAS INDSUCTRY
7. MARINE INDUSTRY
8. OFFSHORE&ONSHORE INDSUTRY
9. USE IN FOOD INDUSTRY
10. USE IN MEICAL INDSTURY
