304L Stainless Steel Pipe

304L pipe 18cr-8ni-Low carbon as low C 304 steel, in general, its corrosion resistance is similar to 304 steel, but after welding or after the elimination of stress, its resistance to intergranular corrosion is excellent, in the case of heat treatment, can also maintain good corrosion...

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304L pipe 18cr-8ni-Low carbon as low C 304 steel, in general, its corrosion resistance is similar to 304 steel, but after welding or after the elimination of stress, its resistance to intergranular corrosion is excellent, in the case of heat treatment, can also maintain good corrosion resistance, the use of temperature -196℃~800℃. It is used in the field of chemical, coal and petroleum industry, which has high resistance to grain boundary corrosion, and has difficult parts for heat-resisting parts and heat treatment of building materials.

Name

304L Stainless Steel Pipe







Standard

ASTM   A554, A249, A269 and A270







Material   Grade

201:   Ni 0.8%~1%







202:   Ni 3.5%~4.5%








304:   Ni 8%, Cr 18%








316:   Ni 10%, Cr 18%








316L:   Ni10%~14%








430:   Cr16%~18%








Outer   Diameter

10-600mm







Thickness

0.3-100mm







Length

6m   or as customers' request







Tolerance

a)   Outer Diameter: +/- 0.2mm







b)   Thickness: +/- 0.02mm








c)   Length: +/- 5mm








Application

handrail,   railing, staircase, weld mesh screen, door, window, balcony, fence, bench, furniture,   etc







Chemical   Composition of Material

Material   Composition

201

202

304

316

316L

430

C

≤0.15

≤0.15

≤0.08

≤0.08

≤0.035

≤0.12


Si

≤1.00

≤1.00

≤1.00

≤1.00

≤1.00

≤1.00


Mn

5.5-7.5

7.5-10

≤2.00

≤2.00

≤2.00

≤1.00


P

≤0.06

≤0.06

≤0.045

≤0.045

≤0.045

≤0.040


S

≤0.03

≤0.03

≤0.030

≤0.030

≤0.030

≤0.030


Cr

13-15

14-17

18-20

16-18

16-18

16-18


Ni

0.7-1.1

3.5-4.5

8-10.5

10.0-14.0

10.0-14.0

**


Mo

**

**

**

**

2.0-3.0

**


Mechanical   Property

Material   Item

201

202

304

316



Tensile   Strength

≥535

≥520

≥520

≥520




Yield   Strength

≥245

≥205

≥205

≥205




Extension

≥30%

≥30%

≥35%

≥35%




Hardness   (HV)

<105

<100

<90

<90




304 Seamless pipe is a hollow round steel, widely used in petroleum, chemical, medical, food, light industry, mechanical instrumentation and other industrial pipelines and mechanical components. In addition, the bending, torsional strength of the same, light weight, it is also widely used in the manufacture of mechanical parts and engineering structures. Also used for the production of various conventional weapons, barrels, shells and so on.

304 Seamless pipe wall thickness thicker, it will be more economical and practical, the thinner the wall, its processing costs will be greatly increased;

304 Seamless pipe technology to determine its limitations can, general seamless steel tube precision Low: uneven wall thickness, the appearance of low brightness in the tube, the high cost of the fixed ruler, and inside the appearance of hemp spots, black spots are not easy to remove;

304 Seamless tube inspection and shaping must be off-line processing. Therefore, it embodies its superiority in high pressure, high strength and mechanical structure.

Application

Decorating, chemical industrial, agricultural industry, shipping industry and other industries.



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