Forming Taps for Stainless Steel
KZF Forming Taps for Stainless Steel (also called chipless deliver superior performance, longer tool life, and consistent precision—even for tough austenitic, ferritic, and duplex stainless steel grades. Unlike traditional cutting taps that struggle with stainless steel’s work-hardening, adhesion, and heat generation, our forming taps use cold metal displacement to create stronger, smoother threads without chips, minimizing downtime and maximizing productivity for your stainless steel machining operations.
1.Features
| Applicable materials | Stainless steel 304,316,403 and 2205 grades. | Thread machining type | Chipless forming |
| Basic materials | HSSE,HSSE-PM | Coating | CrN,DLC,TiCN |
| Thread Specifications | Metric/UNIC | Hardness | HRC64-68,HRC68-70(coated) |
| Machining thread quality | up to 30％ higher tensile strength, smoother surface.(best Ra0.8) | Holes type | Both Blind holes and Through holes |
2.Technical Specifications
Note: All specifications are optimized for stainless steel (304, 316, 430, 2205, etc.). Custom sizes, pitches, and coatings are available upon request. Drill sizes are recommended for optimal thread formation in stainless steel.
Thread Size (Metric/UNC) | Standard Pitch (mm/TPI) | Material | Coating Options | Recommended Drill Size (mm) | Thread Tolerance | Max Machining Speed (m/min) |
M3 / #4-40 UNC | 0.50 mm / 40 TPI | HSS-E, HSS-PM | Uncoated, CrN, TiCN, DLC | 2.80 / 2.40 | 6H / 2B | 15–30 |
M4 / #6-32 UNC | 0.70 mm / 32 TPI | HSS-E, HSS-PM | Uncoated, | 3.70 / 3.00 | 6H / 2B | 12–28 |
M5 / #8-32 UNC | 0.80 mm / 32 TPI | HSS-E, HSS-PM | Uncoated, | 4.60 / 3.60 | 6H / 2B | 10–25 |
M6 / 1/4-20 UNC | 1.00 mm / 20 TPI | HSS-E (M42), HSS-PM | Uncoated, | 5.50 / 5.50 | 6H / 2B | 8–22 |
M8 / 3/8-16 UNC | 1.25 mm / 16 TPI | HSS-E (M42), HSS-PM | Uncoated, | 7.40 / 8.50 | 6H / 2B | 6–20 |
M10 / 1/2-13 UNC | 1.50 mm / 13 TPI | HSS-E (M42), HSS-PM | Uncoated, | 9.30 / 11.50 | 6H / 2B | 5–18 |
M12 / 9/16-12 UNC | 1.75 mm / 12 TPI | HSS-E (M42), HSS-PM | Uncoated, | 11.10 / 13.00 | 6H / 2B | 4–15 |
3.Product Applications
- Automotive Industry: Stainless steel engine components, exhaust systems, brake parts, and fasteners (304/316 stainless steel), where thread strength and corrosion resistance are critical.
- Medical Equipment: Precision medical devices, surgical instruments, and implantable components (316L stainless steel), requiring high thread accuracy, smooth surface finish, and biocompatibility.
- Food & Beverage Equipment: Stainless steel tanks, pipelines, and processing machinery (304/316 stainless steel), where clean, chip-free threads prevent contamination and ensure hygiene compliance.
- Chemical & Petrochemical Industry: Duplex stainless steel (2205) flanges, valves, and fittings, where high wear resistance and corrosion resistance are essential for harsh chemical environments.
- Kitchen & Bath Hardware: Stainless steel sinks, faucets, and fixtures (430/304 stainless steel), requiring durable, aesthetically pleasing threads that resist rust and wear.
- Aerospace & Precision Engineering: Lightweight stainless steel structural components and fasteners, where thread precision and tool reliability are non-negotiable.
Usage Tips: For optimal performance in stainless steel, use high-quality tapping fluid (preferred over water-soluble coolants for superior lubricity) to reduce friction and heat. Adjust machining speed based on the specific stainless steel grade—slower speeds for harder duplex or 316L stainless steel, and slightly higher speeds for 304/430 grades. Always use the recommended drill size to avoid excessive torque and tap breakage.
Contact us today for detailed catalog, competitive pricing, or custom solutions—we are your reliable partner for precision thread-forming tools!
