Marine & Coastal Wire Mesh | 316 / 316L Stainless Steel for Salt Spray, Pier, Offshore Platform
Anping Hand in Hand factory direct 316 / 316L stainless steel wire mesh, welded mesh panels, perforated plate and crimped mesh for marine and coastal procurement: harbor, pier, offshore platform, shipyard, coastal walkway, desalination plant, aquaculture, swimming pool. 2-3 percent molybdenum content, salt-spray verified, 15-30 year service life.
Get my marine 316 stainless mesh quote Send a detailed RFQ
- Marine corrosion is chloride-driven; 316 / 316L stainless is the right grade, never 304
- 2-3 percent molybdenum content in 316 vs 0 percent in 304 – the deciding factor for salt spray
- In-house pickled, passivated and electro-polished finish for maximum corrosion resistance
- Mill test certificate (MTC) traceable to wire batch by default; SGS / BV / TUV inspection welcome
- Salt-spray (ASTM B117) test report supplied on request for marine procurement
- Engineer specifies 316 vs 316L vs duplex per chloride concentration and welding fabrication
- RFQ replied by named engineer within one business day; full export packing, B/L, MTC, COO
Recommended products: 316 stainless welded wire mesh manufacturer · 316 stainless mesh panels for marine fabrication · 316 perforated metal sheet for marine ventilation · crimped 316 stainless wire mesh for ballast and filter.
Why 316 (not 304) for marine and coastal wire mesh
Marine corrosion is dominated by chloride. The single most important specification for any marine wire mesh procurement is choosing 316 / 316L over 304. The four mechanisms below decide grade, surface finish and welding fabrication.
Chloride pitting
Salt-laden air, splash zone and immersion expose stainless to chloride pitting. 316 with 2-3 percent molybdenum resists pitting to 25-30 years where 304 fails in 5-10.
Crevice corrosion
Frame joints, weld seams and bolt holes hold trapped salt. 316L (low-carbon) resists welded crevice corrosion; 304 welds fail at heat-affected zones in 3-7 years.
Stress corrosion cracking
Cyclic load + chloride + temperature triggers SCC. 316L is the international marine default; duplex 2205 supplied for high-stress / high-temperature locations.
Surface passivation
Pickled and passivated finish removes free iron and weld scale, restoring chromium-rich oxide layer. Required step for marine deployment, supplied in house.
Grade selection guide for marine wire mesh: 304 vs 316 vs 316L vs duplex
Engineers select grade by chloride concentration, fabrication method and required service life. The default for atmospheric and splash-zone coastal is 316 / 316L; submerged offshore and desalination brine require duplex 2205 or super duplex 2507. 304 vs 316 stainless welded mesh selection guide · 304 vs 316 stainless material comparison · surface treatment selection guide · wire mesh buying guide and material comparison.
| Grade | Cr / Ni / Mo | Marine zone fit | Service life | Typical use |
|---|---|---|---|---|
| 304 stainless | 18 / 8 / 0 | NOT recommended for marine | 5-10 yr coastal | Avoid in chloride exposure |
| 304L stainless | 18 / 8 / 0 | Light coastal indoor only | 8-12 yr | Indoor pool plant rooms |
| 316 stainless | 17 / 12 / 2.0-3.0 | Splash zone, atmospheric, pool | 15-25 yr | Walkway, guard, pool fence |
| 316L stainless | 17 / 12 / 2.0-3.0 | Welded marine fabrication | 20-30 yr | Pier, offshore framed panels |
| Duplex 2205 | 22 / 5 / 3.0-3.5 | Submerged, chemical, high-stress | 30+ yr | Offshore platform, desalination |
| Super duplex 2507 | 25 / 7 / 4.0 | Aggressive chemical + chloride | 40+ yr | Subsea oil & gas, brine |
Marine and coastal application zones
Six standard procurement scenarios with recommended product, wire and opening spec, and expected service life. Send the zone with your RFQ and our engineer confirms grade and fabrication.
Harbor & pier walkway
Recommended: 316 stainless welded mesh panel
Spec: 4-6 mm wire, 50-100 mm opening, framed in 316 flat bar
Anti-slip walkway, deck guard, fall protection. Pickled and passivated finish; mill test certificate per panel.
Service life: 20-30 years
Offshore platform & rig
Recommended: 316L welded mesh roll + framed panels
Spec: 3-4 mm wire, 25-50 mm opening, electro-polished or duplex 2205 for stress zones
Stair tread, helideck mesh, equipment guard. ASTM B117 salt-spray test report supplied on request.
Service life: 25-30 years
Shipyard & dry dock
Recommended: 316 perforated metal sheet + crimped wire mesh
Spec: Perforated 1.5-3 mm sheet for vent / guard; crimped 2-4 mm for ballast filter screen
Splash-zone protection, ventilation, ballast filtration. Welded fabrication uses 316L low-carbon.
Service life: 15-25 years
Coastal walkway & pool
Recommended: 316 welded mesh panel + perforated metal
Spec: 2-3 mm wire, 25-50 mm opening, polished or brushed finish, framed in 316 angle
Beach access ramp, pool fence, lifeguard tower mesh, coastal balcony screen.
Service life: 20-25 years
Desalination & water treatment
Recommended: Duplex 2205 perforated plate + 316L welded mesh
Spec: Duplex for brine pump intake screens; 316L panels for membrane housings and reagent tanks
Reverse osmosis pretreatment, brine handling. Duplex resists chloride pitting at 60+ celsius.
Service life: 20-30 years
Aquaculture cage & enclosure
Recommended: 316 stainless welded mesh panel
Spec: 3-5 mm wire, 25-100 mm opening, framed and bolt-on, anti-fouling coating optional
Salmon / shrimp / sea bass net cages, predator guards, harvest pen enclosures.
Service life: 15-20 years
Recommended Anping Hand in Hand products for marine and coastal procurement
Each product page covers full specifications, opening size, wire diameter, panel size, and pricing for FOB Tianjin, CIF, DAP and DDP. RFQ is replied within one business day by a named engineer.
- 316 stainless welded wire mesh manufacturer
- 316 stainless mesh panels for marine fabrication
- 316 perforated metal sheet for marine ventilation
- crimped 316 stainless wire mesh for ballast and filter
Sibling application pages: chemical plant 316 stainless mesh · factory equipment guard mesh selection · farm and aquaculture fencing wire mesh · wire mesh application gallery.
Marine wire mesh procurement FAQ
Common procurement questions answered up front. Bulk wholesale buyers see request a marine wire mesh quote or contact Anping factory team.
Why is 316 stainless required for marine wire mesh, not 304?
316 contains 2-3 percent molybdenum which dramatically improves resistance to chloride pitting and crevice corrosion. 304 lacks molybdenum and fails in 3-10 years in salt spray, splash zone or immersion. For any salt exposure (harbor, pier, pool, coastal), 316 or 316L is mandatory; we will not recommend 304 for confirmed marine use.
What is the difference between 316 and 316L for marine welded panels?
316L has reduced carbon (under 0.03 percent vs 0.08 percent for 316). For welded fabrications (frames, hooked-edge, U-edge, panel welding), 316L resists weld-zone sensitization and crevice corrosion; the heat-affected zone stays passive. For roll mesh without welded fabrication, 316 is sufficient. Default: 316L for any framed marine panel, 316 for plain mesh roll.
When is duplex stainless (2205 / 2507) needed instead of 316L?
Duplex stainless is needed for: 1) submerged offshore platform mesh under cyclic stress, 2) desalination brine and chloride concentration above 1000 ppm, 3) operating temperature above 60 celsius with chloride exposure, 4) high-stress fall protection on offshore rigs. For atmospheric coastal, splash-zone walkway and aquaculture cages, 316L is sufficient and more cost effective.
Do you supply salt-spray test report (ASTM B117)?
Yes. Salt-spray (ASTM B117 / ISO 9227) test report is supplied on request for marine procurement. Standard 316 stainless welded mesh from our line passes 720+ hours without red rust. Custom test duration (1000 / 2000 hours) can be arranged with an accredited third-party lab; lead time 2-4 weeks.
What surface finishes are best for marine and coastal stainless mesh?
Pickled and passivated finish is the marine baseline; it removes free iron and weld scale, restoring the chromium-rich oxide passive layer. Electro-polished finish is the highest grade, used for offshore platforms and pharmaceutical seawater systems. Brushed and polished finish is acceptable for architectural coastal use. Mill (as-welded) finish is not recommended for marine.
What documents and certifications are supplied for marine orders?
Mill test certificate (MTC) traceable to wire batch number is supplied by default. ASTM B117 salt-spray test report on request. Third-party inspection by SGS, BV, TUV or ABS welcome and arranged before B/L. Container loading photos sent before B/L issuance. Certificate of origin, packing list, B/L and commercial invoice as standard export documents.
What is the minimum order quantity for marine 316 stainless mesh?
For stock specs (316 wire, common opening), MOQ starts at one full pallet (about 20-30 rolls or 50-100 panels). For custom 316L wire diameter, duplex 2205 or non-standard panel size, MOQ is one full setup batch. Sample roll or panel reviewed case by case. Sea freight from Tianjin to main international ports adds 25-40 days transit.
Can you fabricate to drawing for offshore / shipyard projects?
Yes. We cut to size, frame in 316 / 316L flat or angle steel, install hooked edge or U-edge, weld-fabricate per drawing, and pickle / passivate / electro-polish in house. Send 2D drawing or 3D STEP file and we quote material plus fabrication as one line item; engineer confirms 316 vs 316L vs duplex grade against your specification.
Inside the Anping Hand in Hand factory – marine sourcing transparency
316 stainless steel mesh for marine and coastal corrosion – 316 production, panel QC bench, salt spray ASTM B117 records and stockyard sourcing transparency at the Anping wire mesh factory. Buyers welcome to visit, video tour, or appoint SGS / BV / TUV third-party inspection. USCC 91131125MA7FT3EA0D.
Why buyers can trust Anping Hand in Hand on this order
Anping County, Hebei Province is the national wire mesh production cluster of China with 4000+ wire mesh enterprises within 30 km. Our workshop, warehouse and shipping yard back every quotation with physical evidence buyers can verify on site, by video call, or via SGS / BV / TUV inspection.
He Zhanbing
Senior Application Engineer | Anping Hand in Hand
5 years on the wire mesh and steel grating production line. Reviews drawings, opening specifications, panel size, finish and packing. Replies within one business day with binding pricing, weight per panel and lead time. Confirms grade selection (304 / 316 / 316L / duplex / 65Mn / Q235) against your application before quotation.
Verified legal entity and buyer-checkable records
Registered name (EN): Anping Hand in Hand Wire Mesh Products Co., Ltd.
Registered name (CN): 安平县手拉手丝网制品有限公司
Unified Social Credit Code (USCC): 91131125MA7FT3EA0D
Registered address: Anping County, Hebei Province, China
Geo coordinates: Lat 38.2314 / Lng 115.6253 (Anping wire mesh cluster)
Buyers may request a legal entity check, on-site visit appointment, video factory tour, or third-party (SGS / BV / TUV) inspection before payment. Quotations and contracts are issued under the registered legal entity above. Mill test certificate (MTC) traceable to wire batch number supplied by default; ASTM B117 salt-spray, ASTM E8 tensile and ISO 9227 reports supplied on request.
Business license (click to view full size)
Standards we work to: ASTM A123 / A153 (hot-dip galvanizing), ASTM A580 / A480 (stainless steel grade), ASTM E8 (tensile), ASTM B117 (salt-spray), ISO 9227 (NSS), ISO 9001 (quality management — in renewal cycle), EN 10204 type 3.1 (mill cert), EN 10088 (stainless), EN 1461 (galvanizing), EN 10218 (steel wire), AS 4687 / EN 12811 (construction fence), AS 1657 (walkway), ISO 13857 (machine guard), NACE MR0175 / ISO 15156 (sour service).
Get a same day marine 316 stainless mesh quote
Send the form below or WhatsApp +86 15075801841 for a same day reply. Drawings (2D / 3D / STEP) and salt-spray test requirements welcome.
Manufacturer evidence and quality control
The marine and coastal wire mesh described on this page is manufactured at our Anping County, Hebei factory (USCC 91131125MA7FT3EA0D) by Anping Hand in Hand Wire Mesh Products Co., Ltd. Mill cert per EN 10204 type 3.1 issued for every order; type 3.2 third-party witness inspection (SGS / BV / TUV / Lloyds) on request.
Manufacturer: Anping Hand in Hand Wire Mesh Products Co., Ltd. (USCC 91131125MA7FT3EA0D) →
Compatible equipment and standards systems
Our wire mesh is produced to fit the dimensions, hook strip, framing standards, or test profiles published by the following equipment manufacturers and standards bodies. Send us your system or screen model number with your RFQ and we will quote against the corresponding spec.
Brand names are property of their respective owners; listed for product compatibility / standards identification only. Anping Hand in Hand Wire Mesh Products Co., Ltd. (USCC 91131125MA7FT3EA0D) is an independent wire mesh manufacturer and is not affiliated with these brands or systems.
What you receive with every shipment
Every container we ship arrives with a complete document set so your QA, customs broker, and goods-in team have nothing to chase.
- ✓Mill test certificate (EN 10204 type 3.1) — Heat number, chemical composition, mechanical properties — issued for every order
- ✓Dimensional QC measurement record — Per-product critical dimensions verified against your approved drawing — measured against your approved drawing
- ✓Packing list with PO traceability — Roll / panel / sheet count, m² per unit, total weight, container loading sequence
- ✓Bill of lading (FOB Tianjin Xingang or Qingdao) — For your customs broker and freight forwarder
- ✓Country of origin certificate — Form A / Form E available for AU / NZ / Korea / RCEP markets
- ✓Sample inspection cert from SGS / BV / TUV / Lloyds — Type 3.2 third-party witness inspection on request, paid by buyer
Want to see a redacted sample document set before you place an order? Message engineer He Zhanbing on WhatsApp and he will email you a desensitized type 3.1 mill cert and SGS test report within one working day.
Export-ready capability for first-time international buyers
We are an Anping County, Hebei manufacturer prepared to handle full international procurement documentation in English — mill cert, packing list, BoL, country-of-origin form, freight forwarder coordination from Tianjin Xingang or Qingdao. Whether this is your first import from China or your fiftieth, our process is the same.
New buyer? Request a 5 m sample roll first; we ship by FedEx / DHL with a redacted EN 10204 type 3.1 mill cert so your QA team can validate before placing a container order.