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M42 Tool Steel -ASTM A681 High Speed Steel
M42 Tool Steel from Dongguan Otai Special Steel Co Ltd is a cobalt-alloyed high-speed steel conforming to ASTM A681, designed for precision cutting tools such as drills, end mills and taps. The material contains 8% cobalt, delivering exceptional red hardness and wear resistance at elevated temperatures, which is critical for aerospace, automotive and industrial machining applications. Available in round bar form with standard diameters ranging from 12mm to 80mm, this grade is engineered for heavy-duty operations where tool life and heat resistance are paramount.
The alloy composition of M42 HSS includes molybdenum, tungsten and vanadium alongside cobalt, providing a balance of toughness and abrasion resistance. Typical industry use includes high-speed milling cutters, hobs and specialty tools for exotic materials where conventional steels fail. Standard heat treatment for M42 involves annealing to 260 HB max, hardening at 1190-1230°C and tempering at 540-600°C to achieve a working hardness of 65-68 HRC. Surface finishes are often ground or peeled to tight tolerances for direct use in toolmaking.
This grade is widely adopted by tool manufacturers and precision engineering firms for its ability to retain cutting edges under thermal stress. Buyers typically source M42 in bulk for high-volume tool production, with packaging in bundles or boxes to prevent damage during transit. The material’s stability in high-temperature environments makes it a preferred choice for applications involving titanium, stainless steel and high-temperature alloys. Confirm exact dimensions, heat treatment history and surface condition with the supplier before ordering.
| Standard | ASTM A681 |
| Material Grade | M42 Cobalt High-Speed Steel |
| Cobalt Content | 8% |
| Form | Round Bars |
| Diameter Range | 12mm to 80mm |
| Typical Hardness (HRC) | 65-68 HRC (heat treated) |
| Typical Annealed Hardness | 260 HB max |
| Typical Heat Treatment Temperature (Hardening) | 1190-1230°C |
| Typical Tempering Range | 540-600°C |
| Typical Applications | Drills, end mills, taps, hobs, specialty cutting tools |
| Surface Finish | Ground or peeled |
| Typical Density | 8.1 g/cm³ |
Dongguan Otai Special Steel Co Ltd is a China-based supplier specializing in alloy and high-speed tool steels, with operations centered in Dongguan, Guangdong province. The company’s listed address is 1F, Building B, Sanfang Industrial Area, Xiansha, Gaobu Town, a region known for its concentration of specialty steel producers and metalworking industries. The supplier’s profile indicates a focus on precision engineering materials, including cobalt-alloyed steels like M42, tailored for demanding industrial applications.
The supplier’s trust tier is categorized as harbor, reflecting a baseline level of verification for export capabilities. While the response rate and average response hours are currently not available, the company’s specialization in ASTM A681-compliant materials suggests a technical orientation toward high-performance tooling markets. Buyers are advised to confirm production capacity, lead times and quality control processes directly with Dongguan Otai Special Steel Co Ltd, as these details are not explicitly stated in the provided profile.
M42 High-Speed Steel bars conforming to ASTM A681 are engineered for high-performance cutting and machining applications including drills, end mills, and taps. This cobalt-alloyed tool steel offers superior red hardness and wear resistance essential for aerospace, automotive, and industrial tooling manufacturers. Available in standard diameters from 12mm to 80mm, M42 HSS bars are traded globally by importers and exporters serving precision engineering sectors worldwide.
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Sourcing M42 Tool Steel - ASTM A681 High Speed Steel from Dongguan Otai Special Steel Co Ltd - China Import Guide
Before ordering M42 Tool Steel from Dongguan Otai Special Steel Co Ltd, verify the exact diameter tolerances, heat treatment history and surface finish specifications. Request a material test report (MTR) to confirm compliance with ASTM A681 and ensure the cobalt content is 8%. Check for any additional certifications, such as ISO 9001, which may be relevant for quality assurance in your industry.
Confirm logistics details, including packaging (bundles or boxes), lead times for standard and custom sizes, and the supplier’s preferred Incoterms, such as FOB or CFR. Clarify payment terms, which may include L/C or T/T, and ensure these align with your procurement policies. Port of loading is likely Guangzhou or Shenzhen, given the supplier’s location in Guangdong province.
For quality checks, inspect the material for surface defects, dimensional accuracy and hardness upon receipt. Use a calibrated Rockwell hardness tester to verify the 65-68 HRC range. For critical applications, consider third-party inspection or a pre-shipment inspection to ensure the material meets your specifications. Document all test results for traceability.
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30 suppliersBuy M42 Tool Steel -Astm A681 in Bulk — Supplier in China
When sourcing M42 Tool Steel -Astm A681 High Speed Steel for your business, securing the right balance of quality and cost is essential. Dongguan Otai Special Steel Co Ltd, a supplier based in China, offers this product with key specifications including M42 (UNS T11342) - Cobalt-bearing High Speed Tool Steel, C: 1.05-1.15%, Co: 7.75-8.75%, Cr: 3.50-4.25%, Mo: 9.00-10.00%, W: 1.50-2.00%, V: 0.95-1.35%, and Bars: 10mm-100mm dia. round; Rods: 2m-6m lengths; Flat bars available in various widths/thicknesses. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $560/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7228.20, making it a staple in the Steel sector with strong demand from importing countries worldwide.
M42 Tool Steel -Astm A681 Specifications, Trade Terms & Pricing
Importing M42 Tool Steel -Astm A681 requires careful attention to shipping logistics, customs compliance, and secure payment terms. Dongguan Otai Special Steel 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 7228.20 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 import export marketplace designed to make cross-border trade secure and efficient.
About Dongguan Otai Special Steel Co Ltd — Supplier in China
Finding trustworthy partners is the foundation of successful importing. Ask the supplier of this M42 Tool Steel -Astm A681 for business registration and quality documents before ordering. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of manufacturers and exporters across 200+ countries. Explore similar products in the Steel category and connect with top-tier exporters on our comprehensive online B2B marketplace. Start your sourcing journey today.
Import M42 Tool Steel -Astm A681 — Shipping, Logistics & Customs
Importing M42 Tool Steel -Astm A681 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 7228.20 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About M42 Tool Steel -Astm A681
What is the wholesale price of M42 Tool Steel -Astm A681 High Speed Steel?
The current listed wholesale price for M42 Tool Steel -Astm A681 High Speed Steel from Dongguan Otai Special Steel Co Ltd is $560/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 Dongguan Otai Special Steel Co Ltd through EximNext.
What is the Minimum Order Quantity (MOQ) for M42 Tool Steel -Astm A681?
The supplier, Dongguan Otai Special Steel Co Ltd, has set a Minimum Order Quantity (MOQ) of 1 Bags for M42 Tool Steel -Astm A681. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for M42 Tool Steel -Astm A681 High Speed Steel?
For international shipping and customs clearance, M42 Tool Steel -Astm A681 High Speed Steel is classified under HS Code 7228.20. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import M42 Tool Steel -Astm A681 from China?
To import M42 Tool Steel -Astm A681 from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Dongguan Otai Special Steel Co Ltd. Ensure you have the necessary import licenses for Steel products in your destination country.
How can I check Dongguan Otai Special Steel Co Ltd before ordering?
Open the Dongguan Otai Special Steel Co Ltd company profile on EximNext to see the details the company has provided. Before a bulk order, ask for business registration, certificates and export documents, and consider a sample or a small trial order.
What are the key specifications of M42 Tool Steel -Astm A681 High Speed Steel?
The key specifications for M42 Tool Steel -Astm A681 High Speed Steel supplied by Dongguan Otai Special Steel Co Ltd include M42 (UNS T11342) - Cobalt-bearing High Speed Tool Steel, C: 1.05-1.15%, Co: 7.75-8.75%, Cr: 3.50-4.25%, Mo: 9.00-10.00%, W: 1.50-2.00%, V: 0.95-1.35%, and Bars: 10mm-100mm dia. round; Rods: 2m-6m lengths; Flat bars available in various widths/thicknesses. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of M42 Tool Steel -Astm A681?
Dongguan Otai Special Steel Co Ltd offers M42 Tool Steel -Astm A681 with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import M42 Tool Steel -Astm A681 the most?
M42 Tool Steel -Astm A681 is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Dongguan Otai Special Steel Co Ltd through our platform.
What certifications does this M42 Tool Steel -Astm A681 supplier hold?
Dongguan Otai Special Steel Co Ltd maintains international quality certifications. These ensure that the M42 Tool Steel -Astm A681 meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for M42 Tool Steel -Astm A681 High Speed Steel on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Dongguan Otai Special Steel Co Ltd will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
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 Dongguan Otai Special Steel Co Ltd.
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