Guia completo para selecionar pernos de aço inoxidável para projetos africanos.
Why Stainless Steel Bolts for Africa?
Content coming soon.
A2 (304) vs A4 (316) Stainless Steel: Which to Choose?
Content coming soon.
| Grade | Composition | Corrosion Resistance | Best Applications |
|---|---|---|---|
| A2 (304) | 18% Cr, 8% Ni | Good - inland applications | General construction, roofing, framing |
| A4 (316) | 18% Cr, 10% Ni, 2-3% Mo | Excellent - coastal & chemical | Harbors, mines, chemical plants, coastal buildings |
Common Stainless Steel Bolt Sizes for African Projects
Content coming soon.
| Size | Tensile Strength | Common Applications |
|---|---|---|
| M8 x 25mm | 700 N/mm² | Light roofing, signage, brackets |
| M10 x 30mm | 700 N/mm² | General construction, solar panel mounting |
| M12 x 40mm | 800 N/mm² | Structural connections, machinery mounting |
| M16 x 50mm | 800 N/mm² | Heavy structural, bridge construction |
| M20 x 60mm | 800 N/mm² | Infrastructure, mining equipment |
Procurement Tips for African Importers
Content coming soon.
Frequently Asked Questions
See frequently asked questions below.
Q: Can stainless steel bolts be used with galvanized steel?
A: Avoid using stainless steel with galvanized steel in wet environments due to galvanic corrosion. Use stainless steel throughout or separate with plastic washers.
Q: What's the typical lead time from China to Africa?
A: Sea freight typically 25-35 days from Chinese ports to major African ports like Durban, Mombasa, or Lagos. Air freight reduces to 5-7 days but costs 3-4x more.
Q: Are A4 (316) bolts worth the extra cost for coastal projects?
A: Yes—the 20-30% price premium for A4 vs A2 is justified by 3-4x longer service life in coastal environments, reducing replacement costs significantly.
Need fasteners for your project? Get a factory quote from TradeGo.
Get QuoteArtigos Relacionados
Mais em Technical Guide
Technical Guide
Preload and Torque Calculation Methods for Critical Bolted Joints: Gui…
2026-06-10
Technical Guide
Railway Track Fastener Specifications: Pandrol, Vossloh, and AREMA Sta…
2026-06-10
Technical Guide
Zimbabwe Mining Fastener Grade Selection: Platinum, Gold, Chrome Appli…
2026-06-10
Technical Guide
Thread Locking and Lubrication: Choosing the Right Method for Your App…
2026-06-09
