Hastelloy C276 bolts are specialty fasteners used in environments where high corrosion resistance is critical—such as chemical processing, marine equipment, offshore platforms, and high-temperature gas scrubbers. These bolts are manufactured to tight tolerances using forging or machining processes. China has developed a strong export market for C276 fasteners, offering both standard and custom bolt types at competitive prices. This article introduces key C276 bolt factories in China, their product types, production capabilities, and export standards.
Top C276 Bolt Factories in China
The following manufacturers specialize in the production of Hastelloy C276 bolts, nuts, studs, and washers. Most offer global shipping and supply to oil & gas, marine, and power sectors.
| Factory Name | Location | Main Products | Certifications |
|---|---|---|---|
| Wenzhou Alloy Materials Co., Ltd | Wenzhou, Zhejiang | Hex bolts, nuts, washers, studs | ISO 9001, PED, TUV |
| Shanghai HY Industry Co., Ltd | Shanghai | C276 screws, hex bolts, threaded rods | ISO 9001, CE |
| HNS Fastener Co., Ltd | Jiaxing, Zhejiang | Flange bolts, socket head bolts, anchors | SGS, ISO 14001 |
| Xi’an Sita Industrial Co., Ltd | Xi’an, Shaanxi | Non-standard custom fasteners | ISO 9001, BV |
Types of C276 Bolts Available
Chinese factories manufacture a wide range of bolt types using Alloy C276 rod or bar. Products are available in both metric and imperial sizes.
| Type | Size Range | Thread Type | Standard |
|---|---|---|---|
| Hex Head Bolts | M6 – M64 / 1/4″ – 2-1/2″ | UNC, UNF, Metric | ASTM B574 / DIN 933 |
| Socket Head Cap Screws | M5 – M48 | Fine / Coarse | ISO 4762 |
| Stud Bolts | M10 – M80 | Full thread / double-end | ASME B16.5 |
| Anchor Bolts | Custom | Per drawing | OEM |
Factory Processing and Testing
C276 fasteners are produced through forging or CNC machining, followed by heat treatment and surface finishing. Strict testing is applied to meet international quality standards.
| Process | Description |
|---|---|
| Forging or CNC Machining | Precision forming from C276 bar |
| Thread Rolling or Cutting | Threaded to standard or custom specs |
| Solution Annealing | Heat treated to relieve stress and increase corrosion resistance |
| Surface Treatment | Pickled, passivated, or polished |
| Testing | PMI, hardness, tensile, intergranular corrosion (IGC) |
C276 Bolt Price Range (FOB China, 2025)
Prices vary depending on bolt size, quantity, and processing type. Below is a sample price range for reference:
| Product | Size | Price (USD/piece) | MOQ |
|---|---|---|---|
| Hex Bolt | M10 x 50 mm | $1.50 – $2.20 | 500 pcs |
| Stud Bolt | M20 x 100 mm | $4.00 – $5.80 | 200 pcs |
| Socket Cap Screw | M12 x 60 mm | $2.80 – $3.60 | 300 pcs |
| Custom Bolt | As per drawing | $6.00 – $12.00 | Negotiable |
Export Packaging and Services
Chinese bolt factories typically offer export-ready packaging and optional third-party inspections for overseas clients.
| Packaging Method | Description |
|---|---|
| Small Cartons | Bolts packed in 25 kg cartons with labels |
| Wooden Case | Multiple cartons packed into fumigated wood crates |
| Labeling | Heat number, batch number, size, material grade |
| Third-Party Inspection | SGS, BV, or customer-nominated agents |
Related Questions
Which Chinese factories supply Hastelloy C276 bolts?
Wenzhou Alloy Materials, HY Industry, HNS Fastener, and Xi’an Sita Industrial are reputable C276 bolt factories with ISO and PED certifications.
What types of C276 bolts are available?
C276 fasteners are available in hex head bolts, socket screws, studs, and custom anchor bolts, following ASTM and DIN standards.
How much do C276 bolts cost from China?
Prices generally range from $1.50 to $6.00 per piece depending on size, quantity, and processing method.
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