Hyowon HM

Shipbuilding Equipment

With patented core technology and a certified QHSE system,
Hyowon HM is a trusted partner to leading shipyards.

Overview

Hyowon HM’s Forged Brass Cap and Hex Nuts enhance density and fracture strength through advanced forging technology. The combination of hard (SUS) and soft (Brass) materials perfectly resolves issues caused by identical metal binding.

Download Catalog

Product Image	Process	Standard	Material
	Hot Forging of Drawn Brass Rod	KS B 1026 Type 1	KS D 5101 (Brass)

Development Background

Cap nuts and hex nuts are small but critical components that can cause serious issues when damaged or corroded.
Hyowon HM applied its patented forging process to develop Cap and Hex Nuts that significantly improve durability and structural reliability, effectively eliminating galling problems.

Key Features

Patented Forging Process

Enhances brass density, improving corrosion resistance and fracture strength.
Material Combination

Prevents galling by combining SUS bolts with brass nuts, solving same-material binding issues.
Low-Temperature Durability

Certified at −62°C per Russian classification standards; fully applied to the Yamal Project.
Zero Claim Record

Over 100,000 units supplied annually since 2007 with zero customer claims.

Development History

2021

12	Selected as a Pilot Procurement Product for Technology-Developed Items
10	Signed Demonstration Agreement with Ulsan Thermal Power Plant
09	Applied to 200t Class Coast Guard Patrol Vessel
07	Pilot Application at Naval Logistics Command and the 3rd Fleet
06	Selected and Evaluated as a Pilot Product for Excellent Commercial Goods (Ministry of National Defense)

2020

04	Acquired Excellent Quality Management Certification (Grade A) from Major Korean Shipyard	Obtained CWB Workshop Approval

2019

05	Selected as a Specialized Materials & Components Company
04	Designated as a Root (Core Manufacturing) Enterprise
03	Obtained ABS Workshop Approval
01	Acquired RINA WPS (FCAW)	Acquired CWB WPS (FCAW, SMAW, GTAW, SAW)	Certified CWB Welding Supervisor

2021

12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items

2021

12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items

2021

12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items

2021

12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items

2021

12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items
12	Selected as a Pilot Procurement Product for Technology-Developed Items

Project References

Year	Hull No.	Project	Client
2022 ~ PROCESSING	2359	IINO 91,000CBM DUEL FUEL LPG CARRIER	DSME
2022 ~ PROCESSING	2362/63/64	SNOW WHITE 91,000CBM DUEL FUEL LPG CARRIER	DSME
2022 ~ PROCESSING	2365/66	HYUNDAI LNG SHIPPING 910,000CBM DUEL FUEL LPG CARRIER	DSME
2021 ~ PROCESSING	2357/58/60/61/67/68	AVANCE GAS 91,000CBM LPG CARRIER	DSME
2021	2509/10	BW 174,000m3 LNG CARRIER	DSME
2020 ~ 2021	2495/2501/02/03/04/06/07/08	MARAN GAS 174,000CBMm3 LNG CARRIER	DSME
2020 ~ 2021	2496/97	BW 174,000m3 LNG CARRIER	DSME
2020	2481/82	MINERVA 173,400m3 LNG CARRIER	DSME
2020	2498/99	MOL 180,000CBM LNG CARRIER	DSME
2020	2505	MOL 174,000CBM LNG CARRIER	DSME
2019 ~ 2020	2479/80/92	FLEX 173,400m3 LNG CARRIER	DSME
2019 ~ 2020	2483/84/85/2500	ALPHA GAS 173,400m3 LNG CARRIER	DSME
2019	2477	MARAN 173,400m3 LNG FRSU	DSME
2018 ~ 2019	2466/67/69/78/86/87	MARAN GAS 173,400m3 LNG CARRIER	DSME
2018 ~ 2019	2489/90/91	BW 173,400m3 LNG CARRIER	DSME
2018	2456/57/58/59	MARAN GAS 173,400m3 LNG CARRIER	DSME
2017 ~ 2018	2435/36/88/89	BW 173,400m3 LNG CARRIER	DSME
2017	2453/54/55/61	TEEKAY 173,400m3 LNG CARRIER	DSME
2016 ~ 2018	2421/22/23/24/25/26/27/28/29/30/31/32/33/34	YAMAL 172,410m3 ARC7 LNG CARRIER	DSME
2016 ~ 2018	2447/48	SEATANKERS 173,400m3 LNG CARRIER	DSME
2016 ~ 2017	2355/56	SHANDONG SHIPPING 84,000CBM LPG CARRIER	DSME
2016 ~ 2017	2460/64	CHANDRIS 173,400m3 LNG CARRIER	DSME

Certifications

Patent No. 10-1218845
Excellent Invention Purchase Certificate
RINA Class Approval Certificate
ABS Certification
RS Test Report