Forged Tube Cap
Product Details
Zhejiang Leadtek Fluid Technology Co., Ltd. is one of the most experienced manufacturers and suppliers of forged tube cap in China. Please feel free to buy customized forged tube cap at competitive price from our factory. Also, free sample is available.
Product Overview
Forged Tube Cap is a threaded end-closure fitting used to permanently or temporarily seal the open end of a pipe or tube. Manufactured from solid stainless steel bar stock through a hot-forging process, it delivers superior structural density and mechanical strength compared to cast equivalents - making it a reliable choice for pressure systems, instrumentation lines, and industrial fluid control applications.
Available in SS304 (CF8) and SS316 (CF8M), this Forged Steel Round Cap offers excellent resistance to corrosion, oxidation, and chemical media across a broad service temperature range.
Specifications
| Size T1 | DN | L (mm) |
|---|---|---|
| 1/4" | 8 | 17.5 |
| 3/8" | 10 | 18 |
| 1/2" | 15 | 20.5 |
| 3/4" | 20 | 21.5 |
| 1" | 25 | 24.5 |
Tolerance: ⅛"~1" L ± 0.5mm. Custom sizes available on request.
Key Features
Hot-forged construction
Grain-refined microstructure for higher tensile strength and fatigue resistance vs. casting
01
Internal female thread
Easy installation onto male-threaded pipe ends without additional tooling complexity
02
Dual-grade availability
SS304 for general-purpose use; SS316 for chloride, acidic, or marine environments
03
Compact round-cap profile
Low-profile design minimizes installation space while maintaining full sealing pressure
04
Wide thread standard coverage
One product line supports BSP, NPT, and DIN systems, reducing procurement complexity for global projects
05
Typical Applications
This Forged Pipe Cap is widely used across industries where a secure, leak-free pipe end seal is required:
- Oil & Gas / Petrochemical - sealing instrument taps, bypass lines, and test points
- Chemical Processing - dead-ending corrosive fluid lines during maintenance or system modification
- Food & Beverage / Pharmaceutical - closing unused ports in hygienic stainless piping networks (SS316 recommended)
- New Energy & Semiconductors - terminating coolant or process lines in precision fluid systems
- Fire Protection & Utilities - capping branch outlets during phased construction or commissioning
Packaging & Shipping
Each Forged Pipe Cap is oiled for rust prevention and sealed in a polybag to protect against moisture and surface damage during transit.
Fittings are grouped by size and specification into clearly labeled inner boxes, with standardized quantities for easy inventory counting upon receipt.
Export-grade corrugated outer cartons are marked with product code, material grade, size, quantity, net/gross weight, and country of origin. Larger orders are palletized and stretch-wrapped for sea or air freight stability.
OEM labeling and custom packaging are available on request. Standard lead time is 15–30 working days depending on order volume; sample orders are supported.
Quality Control
Every Forged Steel Round Cap produced at LEADTEK undergoes a structured multi-stage inspection process before shipment. Incoming stainless steel bar stock is verified by in-house spectrometer (PMI) to confirm grade compliance, with Material Test Certificates (MTCs) issued for every batch. During production, thread dimensions and overall length are measured against ASME B16.11 tolerances using calibrated gauges, and each fitting is visually checked for forging defects, burrs, and thread integrity. Samples from every production batch are subject to hydrostatic pressure testing to validate sealing performance at rated working pressure. LEADTEK holds ISO 9001 certification and operates 20+ specialized testing instruments across its facility, ensuring consistent output quality from raw material to finished product.
Why Choose Leadtek
LEADTEK (Zhejiang Leadtek Fluid Technology Co., Ltd.) is a vertically integrated manufacturer with over 30 years of experience in precision casting and CNC machining, operating a 37,000㎡ production base equipped with 400+ advanced machines. Every Forged Steel Round Cap leaves our facility with full material traceability - including Mill Test Certificates (MTCs) and 100% PMI verification - backed by ISO 9001 and ISO 14001 certification.
Our forged fitting range is manufactured to ASME B16.11 and covers the complete set of thread standards your projects demand. With products exported to 80+ countries and a 20-person global support team, LEADTEK is positioned to fulfill both standard catalog orders and custom-dimensioned requirements with short lead times.
Related Reading
Understanding how forged caps fit into the broader piping picture is key to correct selection. LEADTEK's technical article Stainless Steel Pipe Fittings: The Precision Framework of Modern Industrial Piping Systems covers line-termination fittings alongside connection methods and material selection criteria - useful reference for engineers specifying forged fittings at system design stage.
FAQ
Q: Q1: What is the difference between a Forged Tube Cap and a cast pipe cap?
A: Forged caps are manufactured from solid bar stock under high-pressure forming, resulting in a denser grain structure, higher tensile strength, and better fatigue resistance than cast equivalents. For pressure-critical or vibration-prone systems, forged is the preferred choice.
Q: How do I choose between SS304 and SS316?
A: SS304 suits general industrial environments with moderate corrosion exposure. SS316 contains added molybdenum, making it the right choice for chloride-rich, acidic, or marine environments - including chemical processing, coastal installations, and food-grade piping where stricter hygiene and corrosion standards apply.
Q: Can you supply sizes or pressure classes outside the standard range?
A: Yes. Beyond the standard 1/4"–1" range listed, LEADTEK supports custom dimensions, larger sizes, and alternative pressure classes (6000LB, 9000LB) upon request. Please contact our technical team with your specific requirements.
Q: What thread standards are available, and can one order cover multiple standards?
A: We supply BSP (BSPT/BSPP), NPT, DIN2999, JIS B0203, and KS B0221 thread standards. A single order can cover multiple thread standards across the same size range, which is common for distributors supplying different regional markets.
Q: What documentation is available for inspection or project compliance purposes?
A: LEADTEK provides Material Test Certificates (MTCs), dimensional inspection reports, and hydrostatic test records as standard. ISO 9001 certification documentation and third-party inspection arrangements (SGS, BV, etc.) are available upon request for project-specific compliance requirements.
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