Overview
Tungsten carbide threaded stud pins are precision-engineered fasteners designed for extreme industrial conditions. Composed of tungsten carbide particles bonded with cobalt, these pins outperform steel in wear resistance and longevity. They are threaded to ensure secure attachment in machinery exposed to abrasives, such as crushers or drilling equipment. Their adoption has grown in industries like mining and cement production, where equipment lifespan is critical. Unlike standard studs, tungsten carbide variants reduce downtime by withstanding constant friction and impact, making them a cost-effective solution despite higher upfront costs.
Structure and Working Principle
These stud pins feature a cylindrical body with external threads, typically conforming to ISO or ANSI standards. The tungsten carbide material comprises micron-sized WC grains (1–5µm) embedded in a cobalt matrix, which provides fracture resistance. Threads are precision-machined to maintain integrity under vibration. When installed, the pins distribute mechanical loads evenly across their hardened surface. The cobalt binder absorbs minor impacts, preventing crack propagation. This dual-phase structure ensures reliability in high-stress applications, such as securing wear plates in mineral processing plants.
Key Features
The standout feature of tungsten carbide stud pins is their Vickers hardness of 1,500–2,000 HV, nearly three times that of hardened steel. This property minimizes material loss in sandy or rocky environments. Additionally, they resist chemical corrosion from acids and alkalis common in industrial settings. Their thermal stability (up to 600°C) allows use in high-temperature operations like kiln linings. Manufacturers often apply specialized coatings, such as diamond-like carbon (DLC), to further enhance performance in specific applications.
Application Areas
Primary applications include mining equipment (e.g., crusher liners, drill bits), where they anchor wear-resistant components. In construction, they secure road milling machine teeth. The oil/gas sector uses them in valve assemblies subject to erosive fluids. Secondary uses span aerospace (engine mounts) and recycling (shredder blades). Their versatility also extends to heavy-duty conveyor systems, where they fasten guide rails exposed to abrasive materials like iron ore or coal.
Maintenance and Precautions
Inspect stud pins periodically for thread wear or microcracks using dye penetrant tests. Replace units showing visible necking or diameter reduction beyond 5%. Avoid water quenching after high-heat exposure to prevent thermal cracking. During installation, use torque wrenches calibrated to the pin’s specifications—over-tightening can cause brittle failure. Pair with corrosion-resistant washers to prevent galvanic reactions when mating with dissimilar metals. Store pins in dry conditions to avoid cobalt leaching.
B2B Procurement Guide
When sourcing, verify material certifications (e.g., ISO 9001) and batch-specific hardness reports. Leading suppliers include Kennametal, Sandvik, and Chinese manufacturers like Zhuzhou Jinxin. Bulk orders (100+ units) typically attract 10–20% discounts. Consider lead times (often 4–8 weeks for custom threads) and MOQs. For critical applications, opt for pins with traceable lot numbers. Sample testing under operational conditions is recommended before large-scale procurement.
Related Manufacturers
- 主营：[]
- 主营：钢结构螺栓、焊钉、扭剪螺栓、环槽铆钉、桥梁焊钉、扭剪型螺栓、大六角螺栓、圆柱头焊钉、栓钉、钢结构扭剪螺丝、剪力钉、大六角头螺栓、钢结构剪力钉、楼承板用栓钉、哈克套环拉铆钉、哈克钉、高强度扭剪螺栓
- 主营：硬质合金模具、硬质合金配件零件、钨钢模具
- 主营：超宇具、拉拔机、拔料机、拔丝粉、圆衬套、拔丝模、旋模具、锻造模、凹凸模、拔丝油、合成模、拉丝机、组合模、钢轴套、金刚石、钻模套、钨钢模、制钉机、缩径机、金属模、拉拔粉、拉伸模、轴承配、钨钢件、成型模
- 主营：电源弹片、连接器外壳、连接器端子、手机马达外壳
- 主营：钛螺丝、长螺丝、不锈钢螺丝、非标螺丝、台阶螺丝、机米螺丝
- 主营：超细粉、龙井茶、三七粉、咖啡粉、包装加、包装袋、谷物粉、红茶绿茶、玩具包装、包装贴牌、米粉面粉、益生菌粉、代包装服、三角包袋、粉末内袋、红袍茶叶、来料加工、小包茶叶、茶叶包装、包装定制、螺丝螺母、铝箔塑料袋、复合脱氧剂、加工包装机、奶粉蛋白粉
- 主营：铝合金铆钉、六角螺栓、六角螺母、四方螺栓、方螺母、圆柱头螺丝、内六角螺丝、十字自攻、沉头螺丝、圆头螺钉、平垫、弹垫、梅花螺钉、非标螺丝、紧定、自攻螺丝、活节螺栓、T型螺丝、圆柱销、铆螺母、钻尾螺丝、挡圈、牙条、牙棒
- 主营：减速带、橡胶减速带、瓦斯钉、爆闪灯、仿真警车、可移动红绿灯、警示柱、轮廓标、市政护栏、凸面镜、箭头灯、高水马、黄闪红慢、防撞垫、膨胀螺丝、警示灯、减速带钉、防撞桶、隔离墩、警戒线、标志牌、广角镜、草坪护栏、橡胶护角、防眩板
- 主营：松不脱螺丝、弹簧螺钉、镶入螺母、防水压铆螺母柱、压铆螺母、压铆销钉、压铆螺丝、槽机螺钉、台阶螺丝、自锁螺丝、点焊螺钉、伸缩锁销、弹簧螺丝、浮动螺母、旋转轴销、平圆头螺钉、不锈钢螺钉、不脱出螺帽、手拧螺丝钉、紧固件铆钉、不锈钢螺丝、不脱弹螺钉、pc钣金铆螺丝、压铆镶嵌螺帽、平头自扣紧销
- 主营：挖坑机、光伏打桩机、打洞机、履带式打桩机、打眼机、割草机、管桩清理机、锚杆钻孔机、掏桩机、路下穿管钻孔机、横向钻孔机、水平钻孔机、掏土机、拖拉机挖坑机
- 主营：高精密微型螺丝、非标螺丝定制、防水螺丝、点胶防松螺丝、特殊异型槽螺丝、CD纹螺丝、松不脱螺丝、子母工字螺丝、台阶螺丝、自攻螺丝、端子螺丝、螺母定制、手拧螺丝、铅封螺丝、铜螺丝定制、彩锌螺丝定制、防盗螺丝、烤漆螺丝、薄头螺丝、达克罗螺丝、组合螺丝、钛螺丝、真空螺丝、PVC塑木地板螺丝、甲板螺丝
- 主营：外六角螺丝
- 主营：国标钨粉、纯钨粉、钼粉、碳化钨、树脂钨、钴粉末、钨铁粉、钼铁粉、氧化钨、氧化钴、着色剂、金属粉、金属等离子热喷涂粉、耐磨焊丝、特种焊材、特种焊条、雾化铜粉、粗晶钨粉、高比重合金粉、球形粉、金属雾化粉、钨助熔剂、粗颗粒钨粉、难熔金属粉
- 主营：测速仪、减速带、水马、围挡、钢管挡车器、太阳能系列、交通产品
- 主营：转角镜、车位锁、球面镜、限速板、程塑料、隔离椎、警示牌、红慢灯、三角垫、减速块、锥锥筒、保护膜、标志牌、摄像头、防淹板、反光膜、减速垫、半球镜、减速垄、警示车、马施工、注水桶、雾区灯、爆闪灯、反光珠