YoungNam Metal Co.,Ltd

What YoungNam Metal Co.,Ltd does

YoungNam Metal Co.,Ltd (주영남메탈) is a South Korean specialty manufacturer of pipe couplings and leak repair clamps, operating continuously since its 1986 founding (originally as Ihwa Industry). The company's core technology centers on a portfolio of mechanical pipe connection and repair products — including GR-type grip ring couplings for internal-pressure pipe connections, MF-type multi-flex couplings, RCH-type hinge repair clamps for leak repair on damaged sections, RCD-type double-joint repair clamps, FPC-GR-S fire-protection-cover couplings for shipboard fire safety, elbow repair joints, and ECO-type eco-friendly couplings. The product line is supported by 13 patents (including one overseas filing in Japan and two Japanese utility model registrations), an industry-academia R&D consortium with Changwon National University established in 1999, ISO 9001:2015 certification, and type approvals from 8 overseas maritime classification societies plus country-specific certifications (GOST-R, FMBA, RRRS, SIRIM, SPAM, KC). The company also holds K-water (Korea Water Resources Corporation) certified brand status for leak repair clamps since 2015.

The business model is B2B project-based manufacturing with quotation-based pricing (price lists published as downloadable PDFs by product type and pressure rating). Go-to-market combines direct enterprise engagement with domestic shipyards, water utilities, construction firms, plant operators, and government/municipal buyers through corporate-website inquiry forms and downloadable catalogs, alongside export distribution to 35 countries — including the USA, Japan, China, Middle East, and Europe — supported by Korean, English, and Chinese-language websites. Named customers include Hyundai Mipo Shipyard, Samsung Heavy Industries, Daewoo Shipbuilding & Marine Engineering, Hanjin Heavy Industries, Sejjin Heavy Industries, the Republic of Korea Navy Logistics Command, K-water, Seoul Metropolitan Government, Busan Metropolitan City, Samsung Engineering, Hanwha Power Systems, POSCO, Lotte E&C, Doosan Heavy Industries, STX Engine, LS MtRON, and Koreahwa.

The company is privately held (not listed), founder-led by CEO Kim Sang-yeol (김상열), and operates from a single manufacturing and headquarters facility in Gimhae, Kyungnam. There is no evidence of external investment, private equity involvement, parent-company ownership, or public-disclosure revenue/financial reporting in the available source material.

Name

YoungNam Metal Co.,Ltd

Legal name

(주)영남메탈

Website

https://yncoupling.com

Company type

Private

Founded year

1986

Operating status

Operating

Headcount range

1–10 employees

Short description

YoungNam Metal Co.,Ltd is a South Korean specialty manufacturer founded in 1986 that produces pipe couplings and leak repair clamps for shipyards, water utilities, defense, energy, and construction firms, exporting to 35 countries through a distributor network.

Ownership category

akta.pro rank

Product category

Industrial pipe couplings and leak repair clamps

NAICS

Fabricated Pipe and Pipe Fitting Manufacturing (332996)

akta.pro primary industry

Pipe Fittings, Couplings & Connectors (IMADALAD)

akta.pro secondary industry

Hoses, Tubing & Fittings (Hydraulic/Pneumatic Lines & Connectors) (IMAHAGAH)

Keywords

• Pipe coupling products
• Leak repair clamps
• Marine pipe fittings
• Water infrastructure couplings
• Mechanical pipe connectors

Headquarters

HQ city

Gimhae

HQ country

South Korea

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Pipe Coupling and Leak Repair Clamp Manufacturing: Manufactures and sells a range of pipe coupling and clamp products including GR-Type, MF-Type, RCH-Type, RCD-Type, FPC-GR-S, ECO-Type, and elbow repair products. Products are sold directly to domestic shipyards, water utilities, construction firms, plant operators, and international distributors across 35 countries. Revenue is generated through product sales with pricing provided via inquiry/catalog system.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

YoungNam Metal Co.,Ltd manufactures and sells mechanical pipe couplings and leak repair clamps designed to join and repair pipes without welding, flanging, or threading. Its product range covers grip-ring couplings (GR-Type), multi-flex couplings (MF-Type), hinge repair clamps (RCH-Type), double-joint repair clamps (RCD-Type), fire-protection-cover grip couplings (FPC-GR-S), elbow repair joints, and eco-friendly couplings (ECO-Type). These products are supplied to shipyards, water utilities, construction firms, plant operators, and engineering companies, both domestically in South Korea and for export to 35 countries.

Product overview

YoungNam Metal Co.,Ltd is a specialized manufacturer of pipe coupling and leak repair clamp products, established in 1986. The company produces a comprehensive portfolio of pipe connection solutions including GR TYPE (Grip Ring Coupling) for standard pipe connections, MF TYPE (Multi-Flex Coupling) for general applications, and specialized products such as FPC TYPE (Fire Protection Coupling) for fire safety applications. For maintenance and repair, the company offers RCH TYPE (Hinge Repair Clamp Coupling) and RCD TYPE (Double Joint Repair Clamp) for leak repair without system drainage, along with elbow-specific repair couplings. The product lineup is complemented by ECO TYPE couplings for environmentally conscious applications and large diameter special specifications for industrial requirements. The products serve shipyards, plants, water supply systems, construction companies, and pipe installation contractors, with exports to 35 countries worldwide.

Differentiator

Problem solved

Functional benefit

Brands

• YN-Coupling: Main product brand for pipe couplings
• GR TYPE (Grip Ring Coupling)
• MF TYPE (Multi-Flex Coupling)
• RCH TYPE (Repair Clamp Hinge Coupling)
• RCD TYPE (Repair Clamp Double Joint)
• FPC TYPE (Fire Protection Cover Grip Pipe Coupling)
• ECO TYPE (Eco-Pipe Coupling)
• ECO 카플링

Products and services

• GR-Type Grip Ring Pipe Coupling (배관연결용 GR TYPE) Grip-ring mechanical coupling for pipe connection that uses an internal expansion grip-ring mechanism to prevent pipe disengagement under internal pressure, suitable where pipes are not independently supported. Sold to shipyards, water utilities, construction firms, and plant operators.
• MF-Type Multi-Flex Pipe Coupling (단관연결용 MF TYPE) General-purpose flexible pipe coupling for standard pipe connections across steel, non-ferrous, and non-metallic pipes. Documented to reduce construction time 8–10x and costs by 63–73% versus welded/flange methods.
• RCH-Type Hinge Repair Clamp Coupling (누수보수용 RCH TYPE) Hinge-style clamp coupling for repairing leaks at damaged or perforated pipe sections. Can be pre-assembled and slid into position over the leak area without draining the system, simplifying field repair.
• RCD-Type Repair Clamp Double Joint (신설 및 누수보수용 RCD TYPE) Double-joint repair clamp designed for both new pipe installations and leak repair scenarios, providing a single product usable across construction and maintenance.
• FPC-GR-S Fire Protection Cover Grip Pipe Coupling (내화 카플링) Pipe coupling with integrated fire-resistant cover designed for shipboard and industrial fire-safety applications. Backed by patent coverage and classification society type approvals.
• Elbow Repair Clamp Joint (엘보보수용) Specialized repair clamp for elbow-joint pipe sections, enabling leak repair at bent pipe locations without disassembly of the piping system.
• ECO-Type Pipe Coupling (에코카플링) Eco-friendly pipe coupling designed for reduced material usage and lower environmental impact, suitable for sustainable pipe connection applications.
• Large Diameter Special Specification Couplings (대구경 특별사양) Custom large diameter pipe couplings engineered for special industrial requirements and oversized pipe dimensions.
• Other Shipbuilding Materials (그외 조선기자재) Complementary shipbuilding materials and marine pipe connection accessories for the shipbuilding and offshore industry.

Quantifiable outcome

• 63–73% cost reduction vs. traditional flange (FLANGE) method; 47–69% cost reduction vs. threaded/socket (나사식) and welded pipe connection methods (2018 baseline)
• +4 more outcomes

Named customers17 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Three partnerships are on record, tiered core.

• Korea Water Resources Corporation / K-water (한국수자원공사)coreOthers · 1 January 2015Acquired K-water certified leak repair clamp brand designation in 2015, enabling official supply to K-water infrastructure projects and municipal water utilities. Key government-backed certification for the domestic water sector.
• Changwon University (창원대학교)coreStrategic or Co-development Partner · 1 January 1999Industry-academia consortium established in 1999 for joint development of new technologies, new product development, and factory automation systems. Ongoing R&D partnership contributing to the company's patent portfolio and product innovation.
• 8 Overseas Classification SocietiescoreStrategic or Co-development PartnerType approval and formal certification from 8 overseas maritime classification societies for shipboard pipe coupling applications. Required for marine/shipbuilding market access internationally.

Scale indicators6 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Romac Industries: Producer of pipe couplings, tapping sleeves, and repair products for waterworks and industrial pipelines. Comparable product set and customer overlap with YoungNam in municipal water and industrial pipe joining.
• Smith-Blair: Manufacturer of pipe couplings, repair clamps, and pipe fittings for water, wastewater, and industrial markets. Closely overlaps with YoungNam's RCH/RCD leak-repair clamp and pipe coupling product lines for municipal water utilities.
• Krausz: Manufacturer of pipe repair clamps, couplings, and connectors for water and gas utilities worldwide. Directly competes with YoungNam's repair clamp and coupling offerings in the water infrastructure and leak-repair segments.
• Victaulic: Global leader in mechanical pipe joining systems (grooved couplings, fittings, valves) serving shipbuilding, water, industrial, and commercial construction. Directly comparable to YoungNam's GR/MF/RCH/RCD-type couplings as the dominant global incumbent in pipe-connection alternatives to welding/flanging.
• Ford Meter Box Company: Manufacturer of pipe fittings, couplings, and water meter accessories for water utilities. Comparable in water infrastructure product offerings, particularly fittings and couplings used in distribution and repair.
• JCM Industries: Manufacturer of pipe couplings, repair clamps, and fabrications for water and wastewater utilities. Directly comparable to YoungNam's leak repair clamp and pipe coupling products serving municipal water customers like K-water.
• Teekay Couplings: UK-based manufacturer of marine pipe couplings with type approvals from major classification societies (DNV, Lloyd's, ABS). Directly comparable to YoungNam's marine coupling portfolio (GR, MF, FPC-GR-S) and its 8-classification-society approval strategy.

Broad incumbents

• Mueller Water Products: Large North American water infrastructure supplier of valves, hydrants, pipe fittings, and repair products. Comparable to YoungNam in the water-utility segment but operates at significantly larger scale across a broader product portfolio.
• AVK Holding: Global manufacturer of valves, hydrants, and pipe fittings for water, gas, and fire protection. Adjacent competitor with overlapping municipal water and industrial infrastructure customers served by YoungNam.

Emerging players

• Mission Rubber Company: Manufacturer of rubber pipe couplings and repair products primarily for plumbing, sewer, and water markets. Smaller-scope competitor with comparable coupling technology relevant to YoungNam's pipe connection and leak repair applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/yncoupling
• Instagraminstagram.com/pipecouplings
• LinkedInlinkedin.com/company/youngnam-metal-co.-ltd

Compliance9 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about YoungNam Metal Co.,Ltd