Stainless steel coil grade 316

Description

Product Overview
This AISI/SAE 316 stainless steel coil is a molybdenum-bearing austenitic grade engineered for superior corrosion resistance in chloride-rich and chemically aggressive environments. It is primarily used in marine engineering, chemical processing, and pharmaceutical equipment where long-term structural integrity is non-negotiable. The key value proposition lies in its exceptional pitting resistance and high-temperature stability, reducing lifecycle maintenance costs by up to 40% compared to standard 304 grades. Strategically, securing reliable 316 coil supply is critical for industries facing tightening environmental regulations and extended asset lifespan requirements.

Key Specifications & Technical Characteristics

• Chemical composition (wt%): Cr 16.0–18.0, Ni 10.0–14.0, Mo 2.0–3.0, C ≤0.08, Mn ≤2.0, Si ≤1.0, P ≤0.045, S ≤0.030

• Purity / grade integrity: Fully killed, continuously cast, with strictly controlled inclusion content (ASTM E45 method A – thin ≤1.5, thick ≤1.0)

• Physical characteristics: Coil form – cold rolled or hot rolled; thickness 0.3mm–6.0mm; width 600mm–1250mm; No.1, 2B, or BA finish; density 8.0 g/cm³

• Packaging: Epoxy-coated wooden pallets or moisture-sealed export crates; inner rust-preventive paper + VCI film + steel strapping

• Shelf life: Indefinite when stored in dry, indoor conditions (≤50% RH, no airborne chlorides)

Core Industrial Applications

• Marine & offshore platforms: Ballast tanks, seawater cooling lines, splash-zone cladding – outperforms due to molybdenum additions preventing crevice corrosion

• Chemical & petrochemical processing: Heat exchangers, scrubbers, storage vessels for acids (acetic, phosphoric, dilute sulfuric) – reduces unplanned downtime vs. non-moly grades

• Pharmaceutical & biotech: Purified water loops, clean-in-place (CIP) pipework – non-reactive surface meets FDA & USP Class VI standards

• Cost advantage: Extended replacement intervals and lower scrap rates during fabrication (excellent formability for coiling, stamping, and welding)

Competitive Advantages

• Quality consistency: ISO 9001:2025 certified mills with 100% eddy current + PMI testing per batch; traceability from melt to final coil

• Supply reliability: Three geographically redundant warehousing hubs (Rotterdam, Houston, Shanghai) buffer against logistics disruptions

• Logistics capability: In-house rail and short-sea shipping contracts enable 7-day average lead time to major industrial ports

• Price competitiveness: Direct mill allocation removes 2–3 intermediary margins; volume-based rebates for 500+ MT annual contracts

• Sustainability: 82% recycled content; EPD certified; Scope 3 emissions data provided upon request

• Technical support: Dedicated metallurgical engineer assigned per account + full NIST-traceable mill certificates with each shipment

Commercial & Supply Information

• Minimum order quantity (MOQ): BULK 20MT per standard grade/temper combination

• Loading capacity: 20MT per 20-foot dry container (coils edge-protected and concentrated-packed to ≤22MT safe working load)