A312 2" 316 2 Inch 304 Stainless Steel Pipe Seamless Or Welded

Place of Origin Jiangsu, China
Certification ISO9001, CE
Minimum Order Quantity 1 pcs
Delivery Time 7~10working days
Payment Terms L/C, T/T
Supply Ability 5000 Ton/Tons per Month
Product Details
Product Name Stainless Steel Round Pipe Technique Cold Rolled,Hot Rolled
Type Seamless Pipe(SMLS) Surface No.1,2D,2B,BA,No.4,8k,Tempered
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2 316 stainless steel pipe

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a312 welded pipe

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seamless and welded pipe

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Product Description

Grade 316LN ERW Stainless Steel Welded Pipe

316(1.4401)/316L(1.4404)/316LN(1.4406) SEAMLESS&WELDED PIPE

 

The main difference between AISI 316 (1.4401) stainless steel and AISI 316L (1.4404) stainless steel is the carbon content. The "L" stands for "low carbon" content.

Due to the lower carbon amount, AISI 316L (1.4404) stainless steel has a reduced risk of sensitization (grain boundary carbide precipitation). Yet, at the same time, it loses some of its strength.

AISI 316LN (1.4406) stainless steel is alloyed with nitrogen to compensate for the loss of strength.

STOCKING PROGRAM

  • Size Range : 1/4″ ~ 36″ NPS (Larger sizes available upon request)
  • Schedules : 10, 10s, 40, 40s, 80, 80s, 120, 160 (Custom wall thicknesses available upon request)
  • Stainless Steel Grades : 304, 304L, 316, 316L, 316L, 317L, 321 , 347
  • Special Alloys : 2205, 254SMo, Monel, Inconel
  • Chrome Moly : P5, P9, P11, P22, P91
  • Standards : ASTM / ASME

CHEMICAL COMPOSITION

Element C Mn Si P S Cr Ni N Fe
316 0.07% 2.0% 1.00% 0.045% 0.03% 16.5~18.5% 10.0~13.0% 0.11% Remainder
316L 0.03% 2.0% 1.00% 0.045% 0.02% 16.5~18.5% 10.0~13.0% 0.11% Remainder
316LN 0.03% 2.0% 1.00% 0.045% 0.015% 16.5~18.5% 10.0~12.5% 0.12~0.22% Remainder

 

MECHANICAL PROPERTIES

Grade

Tensile Strength

(MPa)

 

Yield Strength

(MPa)Min

 

Density

(g/cm3)

Brinell

(HB)Max

316 500~700 200 8 215
316L 520~680 220 8 215
316LN 580~780 205 8 220

 

ADVANTAGES OF WELDED

  • Welded pipes are typically more cost effective than their seamless equivalents.
  • Welded pipes are usually more readily available than seamless. The longer lead time required for seamless pipes can not only make timing problematic, but it also allows more time for the price of the materials to fluctuate.
  • The wall thickness of welded pipes is generally more consistent than that of seamless pipes.
  • The internal surface of welded tubes can be checked before manufacturing, which isn’t possible with seamless.

ADVANTAGES OF WELDED

  • The main perceived advantage of seamless pipes is that they don’t have a weld seam.
  • Seamless pipes provide peace of mind. Although there should be no issues with the seams of welded pipes supplied by reputable manufacturers, seamless pipes prevent any possibility of a weak seam.
  • Seamless pipes have better ovality or roundness, than welded pipes.