A358 GR 316LN

316LN Pipes, Stainless Steel Pipes, Nitrogen-Enhanced Steel Pipes, EFW Steel Pipes, High-Pressure Steel Pipes

Kwality Steelage Pvt. Ltd., a trusted manufacturer, supplier, and exporter based in Mumbai, India, is proud to present A358 GR 316LN Stainless Steel Pipes. These pipes, engineered for critical applications, adhere to the ASTM A358 standard and are manufactured using the electric fusion welding (EFW) process. Known for their low carbon content and nitrogen enhancement, A358 GR 316LN pipes deliver exceptional strength, corrosion resistance, and performance in extreme environments. They are widely used in industries such as chemical processing, nuclear power generation, and marine engineering.

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A358 GR 316LN

The A358 GR 316LN pipes come in nominal bore (NB) sizes ranging from 6 inches to 60 inches, with schedules including SCH 10, SCH 40, SCH 80, and SCH XXS, ensuring suitability for diverse industrial requirements. These pipes boast a robust composition of 16-18% chromium, 10-14% nickel, 2-3% molybdenum, and an addition of nitrogen (0.08-0.20%), which enhances pitting and crevice corrosion resistance. With low carbon content (<0.03%), these pipes offer excellent weldability and minimize the risk of intergranular corrosion during welding and heat treatment.

Manufactured under stringent quality controls, A358 GR 316LN Stainless Steel Pipes are precision-engineered with dimensional tolerances of ±1% for outside diameter and +12.5%/-10% for wall thickness. Available in various finishes such as polished, pickled, and passivated, they meet the demanding requirements of high-pressure and high-temperature systems. These pipes deliver superior mechanical properties, including a tensile strength of 515 MPa and a yield strength of 205 MPa, making them ideal for both structural and fluid transport applications.

Each pipe undergoes rigorous testing, including ultrasonic, radiographic, and hydrostatic examinations, to ensure compliance with international standards. Kwality Steelage Pvt. Ltd. also provides tailored solutions with custom lengths of up to 12 meters and end types such as plain, beveled, or threaded. Backed by global certifications and a commitment to quality, we cater to a diverse clientele across Europe, the Middle East, and Southeast Asia. Contact us today to explore our extensive range of A358 GR 316LN Stainless Steel Pipes and elevate your industrial operations.

Specification Chart for A358 GR 316LN Stainless Steel Pipes

Specification Details
Size Range 6 to 60 inches NB
Wall Thickness Range SCH 10, SCH 40, SCH 80, SCH XXS
Applications Chemical Processing, Nuclear Power Plants, Marine Systems, High-Pressure Pipelines
Pipe Type Electric Fusion Welded (EFW)
Pipe Form Round, Square, Rectangular
Manufacturing Process Heat-Treated (Normalized, Quenched, Tempered)
Material Composition 16-18% Chromium, 10-14% Nickel, 2-3% Molybdenum, 0.08-0.20% Nitrogen, <0.03% Carbon
End Type Plain, Beveled, Threaded
Surface Finish Polished, Pickled, Passivated
Length Options Single Random, Double Random, Custom Lengths

Dimensional Tolerances for A358 GR 316LN Stainless Steel Pipes

Tolerance Type Outside Diameter (OD) Wall Thickness (WT)
Size Tolerance ±1% of specified OD +12.5% / -10% of specified WT

Mechanical Properties of A358 GR 316LN Pipes

Grade Yield Strength (Min) Tensile Strength (Min) Elongation (%)
316LN 205 MPa 515 MPa 35%

Chemical Composition of A358 GR 316LN Pipes

Element Maximum % Composition
Carbon (C) 0.03% max
Manganese (Mn) 2.00% max
Phosphorus (P) 0.045% max
Sulfur (S) 0.030% max
Silicon (Si) 1.00% max
Chromium (Cr) 16-18%
Nickel (Ni) 10-14%
Molybdenum (Mo) 2-3%
Nitrogen (N) 0.08-0.20%

Price Range (per Metric Ton)

Pipe Type Price Range (USD)
A358 GR 316LN Stainless Steel Pipes $4,200 – $6,800

Welding and Heat Treatment for A358 GR 316LN Pipes

A358 GR 316LN Stainless Steel Pipes are heat-treated to optimize their mechanical properties and corrosion resistance. Processes include annealing and normalization, followed by pickling or passivation to ensure a clean, corrosion-resistant surface. Their nitrogen-enhanced composition offers improved strength and resistance to pitting and crevice corrosion. Weldability is excellent, with post-weld heat treatment (PWHT) recommended for critical applications.

Differences Between A358 GR 316LN and GR 316L Pipes

Feature GR 316LN GR 316L
Nitrogen Content 0.08-0.20% None
Corrosion Resistance Enhanced Standard
Applications High-Pressure Pipelines Welded Structures

Partner with Kwality Steelage Pvt. Ltd. for premium A358 GR 316LN Stainless Steel Pipes, designed to excel in high-pressure and corrosion-resistant applications. Contact us today for customized solutions!