Tungsten carbide

Tungsten carbide

CAS Number
12070-12-1
Molecular Formula
CW-
Tungsten carbide Powder (WC)Tungsten Carbide Scrap

About Tungsten carbide

Tungsten Carbide (CAS 12070-12-1) stands as a foundational high purity fine chemicals cornerstone for the American aerospace and defense sectors, where its exceptional hardness and thermal stability are utilized by leading marketplaces in the united states to engineer precision cutting tools and armor-piercing ammuniti...

Tungsten carbide Specifications

CAS Number
12070-12-1
Molecular Formula
CW-
IUPAC NameORBotanical Name
methanidylidynetungsten
Canonical SMILES
[C-]#[W]
InChI Key
OAXLZNWUNMCZSO-UHFFFAOYSA-N
InChI
InChI=1S/C.W/q-1;
HSN No
28499020
Melting Point (Experimental)
2780°C
Boiling Point (Experimental)
6000°C
Density (Experimental)
15.6 g/cm³
Recommended Exposure Limit (REL)
REL-TWA (Time Weighted Average): 0.05 mg Co/m³
Permissible Exposure Limit (PEL)
PEL-TWA (8-Hour Time Weighted Average): 0.1 mg Co/m³
Hazard summary
Hard metals typically contain 85–95% tungsten carbide and 5–15% cobalt Inhalation exposure can cause hard metal lung disease Associated with interstitial and obstructive lung disorders Toxic oxygen species released from tungsten carbide-cobalt mixtures may damage lungs Risk also reported in workers exposed to cobalt powder with iron and diamond dust Skin sensitization and allergic reactions to cobalt may occur Occupational exposure requires strict dust control and respiratory protection Classified under ACGIH TLV for hard metals containing cobalt and tungsten carbide
Precautionary Statement Codes
P210, P240, P241, P260, P261, P264+P265, P272, P273, P280, P302+P352, P304+P340, P305+P351+P338, P308+P313, P321, P333+P317, P337+P317, P342+P311, P362+P364, P391, and P501
Hazard Classes and Categories
Flam. Sol. 1 (100%)

Metalworking: Cutting Tools & Inserts

The dominant use of tungsten carbide. WC, bonded with a cobalt or nickel binder into cemented carbide, is sintered into milling, turning, and drilling inserts, end mills, taps, and dies for machining steel, cast iron, and superalloys.

Mining, Drilling & Construction

Coarse-grain and macrocrystalline WC grades are used in rock drill bits, button bits, road-milling picks, and tunnel-boring tools, providing the toughness and abrasion resistance required for earth and rock removal under heavy impact.

Oil & Gas

Wear-resistant WC components, including nozzles, seals, bearings, and valve parts, withstand the abrasive, high-pressure conditions of drilling and production where conventional materials fail prematurely.

Surface Engineering

WC and cast tungsten carbide powders are applied as thermal spray and hardfacing coatings on turbine blades, pump components, rolls, and tooling to extend service life under wear and erosion.

Recycling

Recovered WC-Co scrap, hard-metal turnings, and used inserts are recycled into reclaimed tungsten carbide powder, supporting a circular, lower-carbon, and supply-secure source of this critical raw material.

Industrial Cutting Tools

A high-performance material used for manufacturing drills, end mills, and inserts due to its superior hardness and thermal stability

Mining and Drilling Equipment

An essential component for rock bits, hammers, and tunnel boring machines used in harsh geological environments

Wear-Resistant Coating

A protective surface treatment applied via thermal spray to safeguard aerospace and oil industry components against erosion and abrasion

Electronics Manufacturing

An ideal material for micro-drills in printed circuit board (PCB) production and as an interconnect material in integrated circuits.

Tungsten carbide FAQs

Minimum Order Quantity

25 kg (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

Technical expert support

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