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Ningbo Beilun Milfast Metalworks Co. Ltd supplies ASTM A193 heavy hex bolts in multiple grades, including B7, B7M, B8, B8M, and B16, catering to high-pressure and high-temperature applications such as pressure vessels, valves, and flanges. The B7 and B7M grades use chromium-molybdenum alloy steel, while B8 and B8M are austenitic stainless steels (SS 304 and 316, respectively). The B16 grade features chromium-molybdenum-vanadium alloy for enhanced performance in extreme conditions.
These heavy hex bolts conform to ASME and API specifications and are commonly used in oil and gas, petrochemical, and power generation industries. The bolts are available with a variety of finishes, including nickel-plated, zinc-plated, and anodized coatings, to suit different environmental conditions. Customization options extend to sizes, lengths, and even colors, allowing buyers to tailor the product to specific project requirements.
Industrial buyers such as EPC firms, equipment manufacturers, and maintenance teams source these bolts for critical joints where reliability under stress is paramount. The supplier’s listing indicates compliance with international standards like ASTM and DIN, ensuring compatibility with global projects. Buyers should confirm the exact grade, dimensions, and finish specifications, as well as any additional testing or certification requirements for their application.
| Standard | ASTM A193 |
| Grades Available | B7, B7M, B8, B8M, B16 |
| Material (B7/B7M) | Chromium-Molybdenum Alloy Steel |
| Material (B8/B8M) | Austenitic Stainless Steel (SS 304/316) |
| Material (B16) | Chromium-Molybdenum-Vanadium Alloy Steel |
| Head Type | Heavy Hex |
| Typical Tensile Strength (B7) | 100 ksi (standard) |
| Typical Yield Strength (B7) | 80 ksi (standard) |
| Typical Hardness (B7) | 22-35 HRC (quenched and tempered) |
| Typical Elongation (B7) | 12% in 4D (standard) |
| Available Finishes | Nickel-Plated, Zinc-Plated, Anodized |
| Customization | Sizes, lengths, colors |
Ningbo Beilun Milfast Metalworks Co. Ltd is located in Qijiashan Street, Lianhe Area, Ningbo, Zhejiang Province, China. The company specializes in the manufacture of high-strength fasteners, including ASTM A193 heavy hex bolts, and serves industries such as oil and gas, petrochemical, and power generation. Its trust tier is classified as harbor, indicating a verified operational status, though the response rate and average response hours are currently not available.
The supplier emphasizes compliance with international standards, including ASTM and DIN, and offers customization options for sizes, lengths, and finishes. While the listing mentions competitive pricing and a minimum order quantity of 1000 pieces, specific details on certifications, production capacity, or client references are not provided. Buyers are encouraged to request documentation such as ISO 9001 certification, material traceability records, and third-party inspection reports to assess quality assurance processes.
ASTM A193 heavy hex bolts are high-strength fasteners designed for pressure vessels, valves, flanges, and high-temperature assemblies. Available in grades B7 (chromium-molybdenum alloy), B7M, B8 (austenitic stainless), B8M, and B16 (Cr-Mo-V), these heavy hex head bolts meet ASME and API specifications critical in oil and gas, petrochemical, and power generation sectors. Commonly used in lieu of API 20E/ISO 15156-compliant bolting for critical joints, they offer superior tensile strength and creep resistance at elevated temperatures.
| 企业类型 | Supplier |
| 成立年份 | Contact Supplier |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| 响应时间 | <4h |
| 响应率 | Contact Supplier |
When sourcing ASTM A193 heavy hex bolts from Ningbo Beilun Milfast Metalworks Co. Ltd, verify the exact grade and material composition for your application. Request mill test certificates (MTCs) and heat treatment records to confirm compliance with ASTM A193 and any additional industry standards, such as ASME or API. For critical applications, insist on third-party inspection of the bolts to check dimensions, thread tolerance, and surface finish.
Clarify logistics details with the supplier, including Incoterms (e.g., FOB Ningbo or CIF to your port), packaging specifications, and lead times for your order quantity. The supplier offers customization for sizes, lengths, and finishes, so confirm whether these options affect lead times or pricing. Discuss payment terms, such as letters of credit (LC) or telegraphic transfers (TT), and ensure they align with your procurement policies.
For quality assurance, conduct pre-shipment inspections to verify the bolts meet your specifications. Check for visual defects, such as corrosion, inconsistent plating, or dimensional inaccuracies. Upon receipt, perform random sampling for mechanical testing, such as hardness or tensile strength, and document the results. Retain all test reports and certificates for traceability and compliance with your internal quality management systems.
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When sourcing Astm A193- B7/B7m/B8/B8m/B16 Heavy Hex Bolt for your business, securing the right balance of quality and cost is essential. Ningbo Beilun Milfast Metalworks Co. Ltd, a verified supplier based in China, offers this product with key specifications including B7, B7M, B8, B8M, B16, B7: Cr-Mo alloy (SA-193); B8: Austenitic SS 304/316; B16: Cr-Mo-V alloy, and 1/2" to 4" diameter; various lengths; heavy hex head pattern per ASME B18.2.1. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $0.1/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7318.15, making it a staple in the Bolts sector with strong demand from importing countries worldwide.
Importing Astm A193- B7/B7m/B8/B8m/ requires careful attention to shipping logistics, customs compliance, and secure payment terms. Ningbo Beilun Milfast Metalworks Co. Ltd offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 7318.15 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading online B2B marketplace designed to make cross-border trade secure and efficient.
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Importing Astm A193- B7/B7m/B8/B8m/ requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 7318.15 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
The current listed wholesale price for Astm A193- B7/B7m/B8/B8m/B16 Heavy Hex Bolt from Ningbo Beilun Milfast Metalworks Co. Ltd is $0.1/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Ningbo Beilun Milfast Metalworks Co. Ltd through EximNext.
The supplier, Ningbo Beilun Milfast Metalworks Co. Ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for Astm A193- B7/B7m/B8/B8m/. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
For international shipping and customs clearance, Astm A193- B7/B7m/B8/B8m/B16 Heavy Hex Bolt is classified under HS Code 7318.15. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
To import Astm A193- B7/B7m/B8/B8m/ from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Ningbo Beilun Milfast Metalworks Co. Ltd. Ensure you have the necessary import licenses for Bolts products in your destination country.
Yes, Ningbo Beilun Milfast Metalworks Co. Ltd is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
The key specifications for Astm A193- B7/B7m/B8/B8m/B16 Heavy Hex Bolt supplied by Ningbo Beilun Milfast Metalworks Co. Ltd include B7, B7M, B8, B8M, B16, B7: Cr-Mo alloy (SA-193); B8: Austenitic SS 304/316; B16: Cr-Mo-V alloy, and 1/2" to 4" diameter; various lengths; heavy hex head pattern per ASME B18.2.1. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
Ningbo Beilun Milfast Metalworks Co. Ltd offers Astm A193- B7/B7m/B8/B8m/ with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Astm A193- B7/B7m/B8/B8m/ is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Ningbo Beilun Milfast Metalworks Co. Ltd through our platform.
Ningbo Beilun Milfast Metalworks Co. Ltd maintains international quality certifications. These ensure that the Astm A193- B7/B7m/B8/B8m/ meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Ningbo Beilun Milfast Metalworks Co. Ltd will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Ningbo Beilun Milfast Metalworks Co. Ltd.
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