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ASTM A403 WP316L-S Fitting Elbow, Stainless Steel Seamless Pipe Elbow

Categories Steel Fitting
Brand Name: YUHONG
Model Number: WP316L-S
Certification: ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015
Place of Origin: CHINA
MOQ: 1PC
Price: Negotiable
Payment Terms: T/T,L/C
Supply Ability: Depends On quantity
Delivery Time: 5 - 90 Work Days
Packaging Details: Wooden Cases
Standard: ASTM A403 / ASME SA403, ASME B16.9
Grade: WP316L-S (UNS S31603), Austenitic Stainless Steel (Low Carbon + Molybdenum)
Type: Elbow Fitting (90°/45° Optional), Seamless/Welded Optional
Size Range: 1/2” – 24” (DN15 – DN600)
Wall Thickness: SCH 10S – SCH 160S, Custom Thickness Optional
Forming Process: Seamless Hot/Cold Forming, Solution Annealing (1050-1150℃), Pickling & Passivation
Company Info.
Yuhong Group Co.,Ltd
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ASTM A403 WP316L-S Fitting Elbow, Stainless Steel Seamless Pipe Elbow

ASTM A403 WP316L-S Fitting Elbow, Stainless Steel Seamless Pipe Elbow
Brief Introduction

ASTM A403 WP316L-S Fitting Elbow is a high-performance corrosion-resistant stainless steel pipe fitting, strictly manufactured in accordance with ASTM A403 / ASME SA403 and ASME B16.9 standards. It is made of WP316L-S austenitic stainless steel (UNS S31603), a low-carbon variant of 316 stainless steel with added molybdenum, featuring superior corrosion resistance (especially to pitting and crevice corrosion), excellent weldability, stable mechanical properties and strong adaptability to harsh environments. As a key pipeline connection component, it is specially designed to change the direction of industrial pipelines, with compact structure, high dimensional accuracy and easy installation. It is suitable for low to medium pressure, normal to medium temperature working conditions, widely applied in various industrial systems conveying corrosive media, serving as a reliable and durable connection fitting for pipeline systems.

Chemical Composition Analysis (wt%)
Alloy GradeCCrNiMoMnSiPS
ASTM A403 WP316L-S (UNS S31603)≤0.0316.0-18.010.0-14.02.0-3.0≤2.00≤1.00≤0.045≤0.030
Typical Mechanical Properties
Mechanical PropertyStandard Requirement (ASTM A403)Typical Value
Yield Strength (Rp0.2), MPa≥170180-250
Tensile Strength (Rm), MPa≥485495-620
Elongation (A), %≥4042-50
Hardness (HB), Brinell≤201135-185
Impact Toughness (KV), J (-20℃)≥6075-100
Bending Strength, MPa≥650680-820
Available Tests
Test TypeStandard
Chemical Composition Test (PMI)Spectrometer, ASTM A403
Tensile & Impact TestASTM E8/E8M, ASTM A370
Hardness TestASTM E10
Hydrostatic/Pneumatic Pressure TestASTM A403, ASME B16.9
Non-Destructive Testing (NDT)UT, RT, MT, PT (ASTM E165), Eddy Current Test
Corrosion Resistance TestASTM G48 (Pitting Corrosion), Salt Spray Test (ASTM B117), Intergranular Corrosion Test
Dimensional & Visual InspectionASTM A403, ASME B16.9, Surface Defect Inspection
Microstructure InspectionASTM E45, Metallographic Microscope Test
Bending TestASTM E290
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