Introduction

Stainless steel welded pipe is corrosion resistant and this type of material is extremely durable in harsh conditions. This type of pipe is popular in industrial applications in the following industries:
Chemical, Food and beverage, Marine, Mining, Oil and gas, Pharmaceutical, Petrochemical, Power generation, Renewable energy.
Stainless steel is a versatile stainless steel that is widely used in the production of equipment and parts that require good comprehensive performance  corrosion resistance and molding).In order to maintain the corrosion resistance inherent in stainless steel, stainless steel plate must contain more than 18% chromium and more than 8% nickel content.
 
Product Stainless Steel Welded Pipe
Size Outside Diameter:  2" - 48"
  Wall Thickness: 5S, 10S, STD, XH, 40, 80, 100, 120, 160, XXH
Standard ASTMA312/A1016/A269/A268/A789/A632/A250/A270/A358/A688/A814/A409
  EN10216/EN10297/JIS G3448/G3459/G3463
Grades 200 series:201,202.204Cu.
  300series:301,302,304,304Cu,303,303Se,304L,305,307,308,308L,309,309S,310,310S,316,316L,321.
  400 series:410,420,430,420J2,439,409,430S,444,431,441,446,440A,440B,440C.
  Duplex and Others:2205,904L,S31803,330,660,630,17-4PH,631,17-7PH,2507,F51,S31254 etc.
Application In Chemical Industry, Coal, Oil Field Open Machine, Building Materials Heat-resistant Parts
 

Welded Stainless Steel Pipe Tolerances

Welded Stainless Steel Pipe Tolerances
NPS Designator Permissible Variations in Outside Diameter
  Over In. Under In.
1/8 to 1-1/2, inch 1/64 (0.015) 1/32 (0.031)
Over 1-1/2 to 4, inch 1/32 (0.031) 1/32 (0.031)
Over 4 to 8, inch 1/16 (0.062) 1/32 (0.031)
Over 8 to 18, inch 3/23 (0.093) 1/32 (0.031)

Chemical Composition

Grade C Si Mn P S Ni Cr Mo
201 ≤0 .15 ≤0 .75 5. 5-7. 5 ≤0.06 ≤ 0.03 3.5 -5.5 16 .0 -18.0 -
202 ≤0 .15 ≤l.0 7.5-10.0 ≤0.06 ≤ 0.03 4.0-6.0 17.0-19.0 -
301 ≤0 .15 ≤l.0 ≤2.0 ≤0.045 ≤ 0.03 6.0-8.0 16.0-18.0 -
302 ≤0 .15 ≤1.0 ≤2.0 ≤0.035 ≤ 0.03 8.0-10.0 17.0-19.0 -
304 ≤0 .0.08 ≤1.0 ≤2.0 ≤0.045 ≤ 0.03 8.0-10.5 18.0-20.0 -
304L ≤0.03 ≤1.0 ≤2.0 ≤0.035 ≤ 0.03 9.0-13.0 18.0-20.0 -
309S ≤0.08 ≤1.0 ≤2.0 ≤0.045 ≤ 0.03 12.0-15.0 22.0-24.0 -
310S ≤0.08 ≤1.5 ≤2.0 ≤0.035 ≤ 0.03 19.0-22.0 24.0-26.0  
316 ≤0.08 ≤1.0 ≤2.0 ≤0.045 ≤ 0.03 10.0-14.0 16.0-18.0 2.0-
316L ≤0 .03 ≤1.0 ≤2.0 ≤0.045 ≤ 0.03 12.0 - 15.0 16 .0 -1 8.0 2.0 -
321 ≤ 0 .08 ≤1.0 ≤2.0 ≤0.035 ≤ 0.03 9.0 - 13 .0 17.0 -1 9.0 -
630 ≤ 0 .07 ≤1.0 ≤1.0 ≤0.035 ≤ 0.03 3.0-5.0 15.5-17.5 -
631 ≤0.09 ≤1.0 ≤1.0 ≤0.030 ≤0.035 6.50-7.75 16.0-18.0 -
904L ≤ 2 .0 ≤0.045 ≤1.0 ≤0.035 - 23.0·28.0 19.0-23.0 4.0-5.0
2205 ≤0.03 ≤1.0 ≤2.0 ≤0.030 ≤0.02 4.5-6.5 22.0-23.0 3.0-3.5
2507 ≤0.03 ≤0.8 ≤1.2 ≤0.035 ≤0.02 6.0-8.0 24.0-26.0 3.0-5.0
2520 ≤0.08 ≤1.5 ≤2.0 ≤0.045 ≤ 0.03 0.19 -0. 22 0. 24 -0 . 26 -
410 ≤0.15 ≤1.0 ≤1.0 ≤0.035 ≤ 0.03 - 11.5-13.5 -
430 ≤0.1 2 ≤0.75 ≤1.0 ≤ 0.040 ≤ 0.03 ≤0.60 16.0 -18.0 -
 

Application

Stainless steel pipe (tube) has excellent characteristics of corrosion resistance and smooth finishing. Stainless steel pipe (tube) is commonly used in demanding equipment like automobiles, food processing, water treatment facilities, oil and gas processing, refinery and petrochemicals, breweries and energy industries.
- Automotive industries
- Food processing
- Water treatment facilities
- Breweries and energy industries
Stainless Steel Welded Pipe
Stainless Steel Welded Pipe