304 vs 316 Stainless Steel Hex Bolts: Selection Gu. دليل شامل لـ304 vs 316 Stainless Steel Hex Bolts: Selection Gu - المواصفات والتطبيقات واختيار الموردين للتصدير B2B إلى الأسواق الأفريقية.
304 vs 316 Stainless Steel: Key Differences
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Factory Supply: Full Thread vs Half Thread Hex Bolts
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Marine Grade 316 Hex Bolts for Ship Building
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304 vs 316 Stainless Steel Hex Bolt Specifications
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| Property | 304 Stainless | 316 Stainless |
|---|---|---|
| Chromium Content | 18-20% | 16-18% |
| Nickel Content | 8-10.5% | 10-14% |
| Molybdenum Content | None | 2-3% |
| Tensile Strength | 515 MPa min | 515 MPa min |
| Yield Strength | 205 MPa min | 205 MPa min |
| Corrosion Resistance | Good (indoor/outdoor) | Excellent (marine) |
| Chloride Resistance | Limited | Excellent |
| Price Premium vs 304 | Baseline | +20-30% |
| Common Standards | DIN 933, ASTM F593 | DIN 933, ASTM A193 B8M |
Frequently Asked Questions
See frequently asked questions below.
What is the price difference between 304 and 316 hex bolts?
316 stainless steel hex bolts typically cost 20-30% more than 304 grade. The premium is due to molybdenum content and superior corrosion resistance.
Can 304 stainless steel bolts be used outdoors?
304 bolts work outdoors in dry, non-coastal environments. For coastal, marine, or high-chloride environments, always use 316 or higher grade.
What does A2-70 and A4-80 mean?
A2-70 is the designation for 304 stainless steel with minimum tensile strength of 700 MPa. A4-80 is 316 stainless steel with 800 MPa minimum tensile strength.
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