Stainless steel pipe 304

304 stainless steel is a universal stainless steel material, and its rust resistance is stronger than that of 200 series stainless steel materials. 304 stainless steel plate is suitable for food processing, transportation and storage. It has good plasticity and can be used in plate heat exchangers, tableware, cabinets, and water heaters. Then, auto parts, water heaters, building materials, and food industries are also involved.

According to the manufacturing method, there are two types of hot rolling and cold rolling, and they are divided into 5 types according to the structural characteristics of the steel grade: austenite type, austenite-ferrite type, ferrite type, martensite type, and precipitation hardening type. Including thin cold plates with a thickness of 0.02-4 mm and medium and thick plates with a thickness of 4.5-100 mm. The density of 304 stainless steel is 7.93 g/cm3. Austenitic stainless steel generally uses this value. 304 has a chromium content (%) of 17.00-19.00 and a nickel content (%) of 8.00-10.00. 304 is equivalent to my country's 0Cr19Ni9 (0Cr18Ni9) stainless steel. 304 stainless steel has excellent corrosion resistance and good resistance to intergranular corrosion. 304 stainless steel has a beautiful surface, diversified use possibilities, good corrosion resistance, long-term durability, better corrosion resistance than ordinary steel, and high strength, so the thin plate has a high possibility of use, high temperature oxidation resistance and high strength, so it can resist fire. Ambient temperature processing, that is, easy plastic processing, is unique among metals because stainless steel already possesses many desirable properties required by building materials, and its development continues. Stainless steel combines performance, appearance and use characteristics, so stainless steel will remain one of the best building materials in the world.
The most common ones on the market are filament and short filament. After processing such surface, 304 stainless steel plate shows good decorative effect and can meet the requirements of general decorative materials. Generally speaking, 304 series stainless steel can form a good effect after one frosting. Due to the low cost, simple operation, low processing cost, and wide application of this type of processing equipment, it has become a must-have equipment for processing centers. Therefore, most machining centers can provide frosted plates for filaments and short filaments, of which 304 steel accounts for more than 80%. The 304 series stainless steel has a perfect decorative effect after oil grinding, and is widely used in decorative panels such as elevators and home appliances. Cold-rolled 304 series stainless steel can generally achieve good results after one grinding pass. There are also some machining centers on the market that can provide oil-based grinding of hot-rolled stainless steel, and the effect is comparable to that of cold-rolled oil grinding. Oily drawing is also divided into filament and short filament. Elevator decoration generally uses filament, and all kinds of small household appliances, kitchen utensils and other two kinds of patterns can be selected.
304 stainless steel is the most widely used chromium-nickel stainless steel. As a widely used steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; good hot workability such as stamping and bending, no heat treatment Hardening phenomenon (use temperature -196℃~800℃). Corrosion resistance in the atmosphere, if it is an industrial atmosphere or heavily polluted area, it needs to be cleaned in time to avoid corrosion. Suitable for processing, storage and transport of food

Equivalent Grades

Grade C Mn Si P S Cr Mo Ni N
304 Min.
Max.
/
0.08
/
2.0
/
0.75
/
0.045
/
0.030
18.00
20.00
/ 8.00
10.50
/
0.10
304l Min.
Max.
/
0.03
/
2.0
/
1.0
/
0.045
/
0.030
18.00
20.00
/ 9.00
11
/
304H Min.
Max.
0.04
0.10
/
2.0
/
0.75
/
0.045
/
0.030
18.00
20.00
/ 8.00
10.50
/

Standard Specification

Grade Tensile Strength
(MPa) 
Yield Strength
0.2% Proof (MPa)ngth
Elongation
(% in 50mm)
Hardness
Rockwell B
(HR B)
Brinell
(HB)
304 515 205 40 92 201
304l 515 205 40 90 187
304LN 515 205 40 92 201

Composition content


1D -- The surface has discontinuous granular shape, also known as fog surface.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling.
2D - A slightly silvery white colour.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling.
2B -- Silver white with better gloss and flatness than a 2D surface.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + quenching and tempering rolling.
Ba - Excellent surface gloss, high reflectivity, like a mirror surface.
Processing technology: hot rolling + annealing shot peening pickling + cold rolling + annealing pickling + surface polishing + quenching and tempering rolling.
No.3 -- Good gloss, coarse grain surface.
Processing technology: polishing and tempering rolling for 2D or 2B with 100~120 abrasive materials (JIS R6002).
No.4 -- Good gloss, fine lines on the surface.
Processing process: polishing and tempering rolling for 2D or 2B with 150~180 abrasive materials (JIS R6002).
HL -- Silver grey with hair streaks.
Processing technology: 2D products or 2B products with appropriate granularity of abrasive materials for polishing the surface is a continuous abrasive grain.
MIRRO -- Specular.
Processing technology: 2D products or 2B products with appropriate granularity of the grinding material grinding and polishing to the mirror effect.

Characteristic machining technology

Types of stainless steel pipes round pipe,squard pipe ,rectangular pipe,oval tube,and pipe in roll.
pipe thickness 0.2-200mm
out diameter 3mm,6mm,10mm,12mm,60mm,80mm,102mm,180mm,245mm,530mm,630mm etc.
type of the pipe  weld pipe and sealess pipe.
length 1000mm,3000mm,5800mm,6000mm,12000mm ,and any length you want,etc.
surface Hot rolled  (HR), Cold rolled Tube (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)

Price List

Stainless Steel 304 pipe Price List  FOB Shanghai Per Unit (USD)
304 stainless steel Round pipe $1200.00-$2000.00
304 mirror/no.4 Stainless Steel pipe $1500.00-$2200.00
304 Stainless Steel Square pipe $1200.00-$2000.00
304 seamless pipe  $1400.00-$2050.00

Get Information