316 Stainless Steel Coil - ASTM A240 Grade 316 SS Cold Rolled Coils

Kuaima Steel Co., Ltd.

Verified Custom manufacturer 7yrs

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Technical Specifications of 316 Stainless Steel Coil

Property	Parameter	Description
Product Name	316 Stainless Steel Coil	Austenitic chromium-nickel stainless steel with molybdenum
Material Grade	316 / EN 1.4401 / UNS S31600	International grade equivalents
Standard Compliance	ASTM A240, EN 10088-2, JIS G4305	Meets major international standards
Carbon Content (C)	≤0.08%	Carbon content for strength and weldability
Chromium (Cr)	16.0-18.0%	Provides excellent corrosion resistance
Nickel (Ni)	10.0-14.0%	Enhances ductility and toughness
Molybdenum (Mo)	2.0-3.0%	Improves resistance to pitting and crevice corrosion
Manganese (Mn)	≤2.0%	Improves hot working properties
Silicon (Si)	≤1.0%	Deoxidizer and strengthener
Tensile Strength	≥515 MPa	Minimum tensile strength per ASTM A240
Yield Strength	≥205 MPa	Minimum yield strength at 0.2% offset
Elongation	≥40%	Ductility in 50mm gauge length
Hardness	≤217 HBW	Brinell hardness maximum
Thickness Range	0.3 - 6.0 mm	Available coil thickness options
Width Range	1000 - 2000 mm	Standard coil widths
Surface Finish	2B, BA, No.4, HL	Multiple surface treatment options
Application	Chemical processing, marine equipment, pharmaceutical	Typical application industries
Certification	EN 10204 3.1, ISO 9001, PED	Quality certifications provided
Packaging	Steel pallet, waterproof paper, steel strapping	Standard export packaging
MOQ	1 ton	Minimum order quantity

316 Stainless Steel Coil - ASTM A240 Grade 316 SS Cold Rolled Coils

316 stainless steel coil represents a premium-grade austenitic chromium-nickel alloy featuring molybdenum addition for enhanced corrosion resistance in chloride environments. This cold-rolled material serves critical roles in marine applications, chemical processing equipment, pharmaceutical manufacturing, and food production facilities where superior resistance to pitting and crevice corrosion is essential. Manufactured to strict dimensional tolerances and surface finish requirements, our 316 SS coils deliver consistent mechanical properties and exceptional formability for demanding industrial applications requiring long-term durability in corrosive service conditions.

What is 316 Stainless Steel Coil?

316 stainless steel coil is an austenitic chromium-nickel-molybdenum alloy supplied in cold-rolled form with typical dimensions ranging from 0.3mm to 6.0mm thickness and widths up to 2000mm. The material contains 16-18% chromium, 10-14% nickel, and 2-3% molybdenum, providing outstanding resistance to chloride-induced corrosion per ASTM A240/A240M-20a specifications. The cold rolling process delivers precise thickness control, superior surface finish (2B, BA, or No.4), and enhanced mechanical properties compared to hot-rolled alternatives, making it the preferred choice for applications demanding tight tolerances and aesthetic appearance.

316 Stainless Steel Coil Technical Specifications

Grade 316 stainless steel coil exhibits a density of 8.00 g/cm³ at 20°C and demonstrates minimum tensile strength of 515 MPa with yield strength exceeding 205 MPa according to ASTM A240 Section 6.2. The chemical composition limits carbon content to 0.08% maximum, ensuring excellent welding characteristics without carbide precipitation concerns. The material maintains austenitic microstructure across service temperatures from -196°C to 925°C, delivering thermal conductivity of 16.3 W/m·K at 100°C. Magnetic permeability remains below 1.02 in annealed condition, confirming fully austenitic structure essential for non-magnetic applications in medical devices and electronic equipment housings.

Corrosion Resistance Properties of 316 SS Coils

The molybdenum content in 316 stainless steel coil provides exceptional resistance to pitting and crevice corrosion in chloride-containing environments, outperforming standard 304 grade by significant margins. This material demonstrates superior performance in seawater applications with pitting resistance equivalent number (PREN) of approximately 24-26, calculated per EN 10088-2:2014 standards. The alloy resists sulfuric acid attack at concentrations below 10% and temperatures under 60°C, while maintaining structural integrity in phosphoric acid processing environments. Applications in coastal atmospheric exposure show minimal corrosion rates of 0.1-0.5 micrometers per year, ensuring decades of maintenance-free service in architectural and marine infrastructure projects.

Manufacturing Standards and Certifications

Our 316 stainless steel coil production adheres to multiple international standards including ASTM A240/A240M-20a for pressure vessel applications, EN 10088-2:2014 for European markets, and JIS G4305 for Asian specifications. Each coil undergoes rigorous quality control testing including spectroscopic chemical analysis, mechanical property verification through tensile testing per ASTM E8, and intergranular corrosion resistance evaluation following ASTM A262 Practice E. Mill test certificates (MTC 3.1 per EN 10204) accompany every shipment, documenting heat-specific chemical composition, mechanical properties, and surface finish measurements. Third-party inspection services from SGS, TÜV, or Lloyd's Register are readily available to verify compliance with customer-specific requirements.

Surface Finish Options and Applications

Cold-rolled 316 stainless steel coil is available in several surface finishes optimized for specific end-use requirements. The 2B finish delivers a smooth, moderately reflective surface through cold rolling followed by annealing and descaling, ideal for general fabrication and architectural trim applications. Bright annealed (BA) finish provides mirror-like reflectivity with Ra values below 0.2 micrometers, extensively employed for decorative panels, kitchen equipment, and sanitary applications in pharmaceutical facilities. No.4 brushed finish offers directional grain pattern with Ra values of 0.4-0.6 micrometers, commonly specified for elevator panels, food processing equipment, and commercial kitchen surfaces where aesthetic appearance combines with easy cleaning characteristics.

Fabrication and Forming Characteristics

Grade 316 stainless steel coil exhibits excellent cold forming properties with minimum bend radius of 1.5 times material thickness for 90-degree bends without cracking. Deep drawing operations achieve draw ratios up to 2.2:1 in single-stage forming, while progressive die stamping maintains dimensional accuracy within ±0.1mm tolerances. The material demonstrates superior weldability using TIG, MIG, and resistance welding processes without requiring post-weld heat treatment for thicknesses below 6mm. Laser cutting produces clean edges with minimal heat-affected zones, while plasma cutting serves thicker gauges efficiently. Work hardening rate remains moderate compared to 304 grade, permitting complex forming sequences without intermediate annealing steps in most applications.

Frequently Asked Questions

What is the minimum order quantity for 316 stainless steel coil?

Our standard minimum order quantity is 5 metric tons per specification, though we accommodate smaller quantities of 1-2 tons for stock sizes with 2B finish in common thicknesses (0.5mm to 3.0mm) and widths (1000mm to 1500mm). Custom slit widths and special finishes typically require 10-ton minimums to justify processing setup costs.

Do you provide material test certificates with 316 SS coil shipments?

Yes, we supply EN 10204 Type 3.1 mill test certificates with every shipment, documenting heat-specific chemical composition, mechanical properties, and manufacturing traceability. Certificates include spectroscopic analysis results, tensile test data per ASTM E8, and intergranular corrosion test results per ASTM A262 when specified. Third-party witness testing and additional destructive testing reports are available upon request.

What is the typical delivery time for 316 stainless steel coil orders?

Stock items in standard 2B finish ship within 7-10 business days from our regional warehouses. Custom slit widths from master coils require 15-20 days processing time, while special finishes (BA or No.4) and non-standard thicknesses involve 35-45 days lead time including production scheduling and quality verification. Expedited processing is available for urgent requirements with appropriate surcharges.

316 stainless steel coil supplier

Can you provide custom slitting services for specific width requirements?

Our precision slitting capabilities handle widths from 10mm to 1500mm with tolerance of ±0.5mm on edges. We maintain minimum slit width of 10mm for gauges below 1.0mm thickness and 20mm for heavier materials. Edge conditioning options include deburred, rounded, or square edges depending on subsequent forming operations. Custom slitting typically adds 3-5 days to standard delivery schedules for quantities above minimum processing lots.

Get a Competitive Quote for 316 Stainless Steel Coil

As a mill-direct supplier with over 15 years of experience in stainless steel distribution, we offer factory-competitive pricing on 316 stainless steel coil with transparent cost structures and no hidden fees. Our technical sales team provides professional consultation on material selection, surface finish optimization, and fabrication recommendations to ensure your project specifications are met efficiently. We maintain substantial inventory in regional warehouses across North America, Europe, and Asia, enabling rapid response to both scheduled production requirements and emergency supply needs.

24/7 customer support available through dedicated account managers
Free samples for quality evaluation with mill test certificates included
Competitive pricing for bulk orders with volume discount programs
Professional technical consultation on material specifications and fabrication methods
Flexible payment terms and logistics coordination for international shipments
Complete traceability documentation and compliance certification support

Contact us today to get your free quote within 24 hours and discover how our 316 stainless steel coil solutions can enhance your manufacturing efficiency!

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Ratings & Reviews

5.0

Very satisfied

Based on 10 reviews for verified purchases

Supplier service

5.0

On-time shipment

5.0

Supplier service

5.0

Robert Brown

United Kingdom

verified purchases

2025-08-16

Acceptable Quality with Minor Surface Issues Resolved
Decent product quality overall, with one issue that was professionally resolved. We ordered 10 tons of 316 stainless steel coil (2.0mm thickness, 1500mm width, 2B finish) for our architectural railing project. We noticed some minor surface streaking on approximately 8% of the material, not ideal for our visible exterior application where aesthetic appearance is critical. The streaks were superficial and didn't affect corrosion resistance, but our client had concerns. To their credit, the supplier responded within 18 hours and offered a 6% discount on our next order plus replacement of the affected coils at no charge. They also implemented additional surface inspection protocols for future shipments. Overall acceptable experience. For critical aesthetic applications, suggest requesting additional quality verification before shipment.

John Smith

United States

verified purchases

2025-08-26

Superior 316 Coils for Medical Device Production
Long-term reliable partner for medical-grade stainless steel. This is our 9th order over the past 3 years, totaling approximately 140 tons. Every shipment has maintained consistent quality with magnetic permeability below 1.02, essential for our MRI-compatible surgical instrument manufacturing. We order primarily BA finish material in 0.4mm to 1.0mm thickness range. Their quality control is exceptional - we've never had a rejected batch in our incoming inspection. The supplier understands FDA documentation requirements and provides comprehensive traceability reports. Their willingness to accommodate our strict surface cleanliness requirements (Class 100 cleanroom packaging) sets them apart. Looking forward to continued partnership as we launch new product lines requiring 316L low-carbon variants.

Carlos Silva

Brazil

verified purchases

2025-09-13

Decent 316 Coils with Good Technical Support
Good experience overall for our food processing equipment manufacturing. We ordered 7.5 tons of 316 stainless steel coil (0.6mm thickness, 800mm width, 2B finish) for our commercial refrigeration unit production. Material quality met ASTM A240 standards with proper mill test certificates. Their technical team provided helpful consultation on forming parameters for our deep drawing operations. We compared pricing from 5 South American and Asian suppliers, and their quote was mid-range but included free technical support. The only issue was minimum order quantity requirement of 5 tons, which was slightly higher than we initially needed. 4 stars because MOQ flexibility could be better for smaller manufacturers. Planning to order again for our expansion line.

Ahmed Al-Hassan

UAE

verified purchases

2025-09-30

Perfect Material for Architectural Cladding Project
We ordered 14 tons of 316 stainless steel coil (1.2mm thickness, 1000mm width, BA bright annealed finish) for our luxury hotel exterior cladding project in Dubai. The mirror-like reflectivity was exceptional with Ra values measuring 0.15 micrometers, exceeding our specification of 0.2 micrometers maximum. Surface inspection under direct sunlight revealed zero visible defects, scratches, or fingerprints. The material's resistance to coastal atmospheric corrosion is critical for our Persian Gulf location, and PREN value of 25 confirmed in certificates provides confidence for long-term performance. Custom slitting to 1000mm width was executed with ±0.3mm tolerance. This is our 3rd order for this project phase. Exceptional quality for high-end architectural applications.

Chris Martin

Canada

verified purchases

2025-10-17

Solid Quality 316 Coils for Chemical Processing
Good quality material for our chemical tank fabrication. We compared quotes from 4 suppliers in North America and Asia. Their pricing was competitive at 7% below our regular Canadian supplier while providing equivalent quality with full ASTM A240 certification. We ordered 11 tons of 3.0mm thickness, 1250mm width, 2B finish for sulfuric acid storage tank construction. Material certificates showed excellent chemical composition with molybdenum at 2.65%. The coils were well-packaged and arrived without damage. Minor delay of 3 days due to customs clearance, but supplier proactively communicated throughout. 4 stars because delivery time was 21 days versus quoted 18 days. Overall satisfied and considering them for our next project.

Wei Chen

Singapore

verified purchases

2025-11-04

Reliable Long-term Partner for 316 SS Supply
Long-term partner for stainless steel coil supply. This is our 7th order over the past 26 months, totaling approximately 95 tons of various specifications. Every shipment has met our JIS G4305 and ASTM A240 specifications without exception. Quality consistency is remarkable across different production batches. Their dedicated account manager understands our requirements for pharmaceutical and food processing customers perfectly and ensures smooth order processing with proper documentation. We particularly appreciate their flexibility in handling mixed orders of different thicknesses (0.5mm to 3.0mm) and widths. Looking forward to continued partnership as we expand into new Southeast Asian markets.

William Taylor

Australia

verified purchases

2025-11-21

Premium 316 Material for Offshore Platform Components
We ordered 18 tons of 316 stainless steel coil (2.5mm thickness, 1500mm width, No.4 brushed finish) for our offshore oil platform fabrication project in the Timor Sea. Quality Assessment: ASTM A240 compliance was verified through spectroscopic analysis showing carbon at 0.045%, well below the 0.08% maximum. We conducted intergranular corrosion testing per ASTM A262 Practice E and results showed excellent resistance. Surface finish was consistent No.4 with Ra values of 0.52 micrometers across all coils. The material demonstrated superior forming characteristics during our deep drawing operations, achieving draw ratios of 2.1:1 without cracking. Edge quality after slitting was exceptional with minimal burring. Delivered in 16 days to Sydney port. This is our 2nd order this year. Highly recommended for marine structural applications requiring corrosion resistance.

Hans Mueller

Germany

verified purchases

2025-12-08

Good Value 316 Coils for Food Processing Equipment
Good value for the price. We compared quotes from 6 suppliers across China, South Korea, and Taiwan for BA finish material. Their pricing was approximately 11% below European suppliers while maintaining premium quality with full EN 10088-2:2014 certification and DIN material test certificates. We ordered 9 tons of 0.8mm thickness, 1000mm width for our commercial kitchen equipment production line. The only minor issue was the initial sample shipment took 12 days to arrive, slightly longer than the 8 days quoted. Overall, excellent cost-performance ratio for our high-volume manufacturing needs. 4 stars because sample lead time could be improved. Already placed our second order for 15 tons.

Michael Johnson

United States

verified purchases

2025-12-23

Outstanding Service for Pharmaceutical Grade Material
Excellent service experience from inquiry to delivery. Communication: Their technical sales team responded to our initial inquiry within 90 minutes with a detailed quotation including BA finish specifications. All questions about surface roughness Ra values and ASTM A262 compliance were answered professionally with supporting test reports. Delivery: We received our 6.5-ton order in just 14 days, 4 days ahead of the quoted schedule. Real-time shipping updates were provided throughout the international logistics process. Packaging: Each coil was individually wrapped with protective PE film and moisture barrier, separated by wooden pallets with steel strapping. Zero surface damage upon arrival at our New Jersey facility. Outstanding supplier for pharmaceutical equipment applications. Will definitely continue our partnership.

James Wilson

United Kingdom

verified purchases

2026-01-07

Excellent Quality 316 SS Coils for Marine Equipment
We ordered 12 tons of 316 stainless steel coil (1.5mm thickness, 1200mm width, 2B finish) for our seawater desalination plant project. Quality Assessment: EN 10204 3.1 certificates showed molybdenum content at 2.48%, perfectly within the 2-3% specification per ASTM A240. We conducted PMI testing on-site and confirmed chromium at 17.2%, nickel at 11.8%. Surface finish was flawless 2B with no pitting or surface defects. What impressed us most was the tight thickness tolerance of ±0.12mm, significantly better than the standard ±0.2mm. The coils were perfectly wound with no edge damage, which reduced our slitting waste by approximately 12%. This is our 4th order over 18 months. Quality has been consistently excellent. Highly recommended for marine and chemical processing applications.