ASTM A Stainless Steel Seamless Tube

ASTM A / ASME SA 312 / 269 / 317L Stainless Steel Pipes SCH10 / SCH80 / SCH20

ASTM A / ASME SA 312 / 269 / 317L Stainless Steel Pipes SCH10 / 10S, SCH20, SCH30, SCH40/40S, STD, SCH80/80S, XS,

317L Stainless Steel Pipes and Tubes Product Range
317L Stainless Steel Pipes and Tubes Specifications: ASTM A/ASME SA 312/269/213/358 317L Stainless Steel Pipes and Tubes Sizes (Seamless): 1/2" NB - 8" NB
317L Stainless Steel Pipes and Tubes Sizes (ERW): 1/2" NB - 24" NB
317L Stainless Steel Pipes and Tubes Sizes (EFW): 6" NB - 100" NB  
317L Stainless Steel Pipes and Tubes Wall Thickness available:
Schedule 5S - Schedule XXS (heavier on request)

317L Stainless Steel Pipes and Tubes Other Materials Testing:

NACE MR0175, H2 SERVICE, OXYGEN SERVICE, CRYO SERVICE, etc.

317L Stainless Steel Pipes and Tubes Dimensions:
 All Pipes is manufactured and inspected/tested to the relevant standards including ASTM, ASME and API etc.

 

General Properties

Alloy 317LMN and 317L are molybdenum-bearing austenitic stainless steels with greatly increased resistance to chemical attack as compared to the conventional chromium-nickel austenitic stainless steels such as Alloy 304. In addition, 317LMN and 317L alloys offer higher creep, stress-to-rupture, and tensile strengths at elevated temperatures than conventional stainless steels. All are low carbon or "L" grades to provide resistance to sensitization during welding and other thermal processes. The "M" and "N" designations indicate that the compositions contain increased levels of molybdenum and nitrogen respectively. The combination of molybdenum and nitrogen is particularly effective in enhancing resistance to pitting and crevice corrosion, especially in process streams containing acids, chlorides, and sulfur compounds at elevated temperatures. Nitrogen also serves to increase the strength of these alloys. Both alloys are intended for severe service conditions such as flue gas desulfurization (FGD) systems.
 

Composition

Chemical Composition in Weight Percent per ASTM A240 for Cited Alloys
Element	Type 317L	Type 317LMN
Carbon	0.03 max	0.03 max
Manganese	2.00	2.00
Silicon	0.75 max	0.75 max
Chromium	18.00   20.00	17.00     20.00
Nickel	11.00 15.00	13.50     17.50
Molybdenum	3.00    4.00	4.00    5.00
Phosphorus	0.04 max	0.04 max
Sulfur	0.03 max	0.03 max
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