Hydrogen & CNG FRP Applications — Type III & Type IV Pressure Vessels
Type III and Type IV filament-wound composite cylinders for 350-bar and 700-bar compressed hydrogen storage, CNG fuel tanks, high-pressure tube trailers and bulk gas transport modules.
High-pressure hydrogen composite cylinders require qualification to ISO 11119-3, UN ECE R134 or legacy EC 79 approvals, minimum burst ratios of roughly 2.0–2.25× working pressure, and controlled automated carbon filament winding.
Where composites fit in Hydrogen & CNG
Storing compressed hydrogen at 700 bar (10,000 psi) in fuel-cell passenger vehicles and heavy-duty trucks requires pressure vessels that resist hydrogen embrittlement while minimizing storage system tare weight. Fiber reinforced polymers (FRP), specifically high-strength carbon fiber wet-wound with epoxy over plastic (Type IV) or thin aluminum (Type III) liners, provide three times the gravimetric storage density of all-steel tanks.
Winding patterns and stress sharing
A composite cylinder combines hoop layers, which carry circumferential stress in the cylindrical section, with low-angle helical layers that carry axial load and cover the domes. Netting analysis gives the ideal angle for a purely helical cylinder (about 54.7°), but practical designs mix hoop and helical plies, with helical angles set by the boss opening and dome geometry. Designs are verified by finite element models that include the liner, the boss and the changing fiber angle and thickness over the dome, and then by hydraulic burst and pressure-cycling tests. The minimum burst ratio in the applicable regulation — roughly 2.0 to 2.25 times nominal working pressure for carbon-fiber cylinders — is what ultimately sets the amount of fiber.
Liner permeation and rapid-decompression behavior
Type IV liners are polymer, typically HDPE or polyamide, and must limit hydrogen permeation while surviving temperatures from about −40°C to +85°C and repeated fills. Polyamide generally permeates less hydrogen than HDPE, while HDPE stays tough at low temperature; grade, crystallinity and wall thickness decide the result. Regulations limit the steady-state permeation rate of the storage system, measured at elevated temperature after pressure cycling. A second failure mode is liner collapse or blistering after rapid defueling, when gas trapped between liner and composite expands, and design and test programs must cover it. Ask for permeation data at maximum temperature, liner material data and the boss-to-liner seal design.
Component families used in this sector
Explore the structural assemblies and specialized composite products engineered for Hydrogen & CNG service conditions.
Type IV High-Pressure Hydrogen Cylinders (700 bar)
Fully overwrapped carbon fiber/epoxy cylinders with polymer (HDPE/PA) liners designed for automotive fuel-cell passenger cars and buses.
The regulation and approval route (UN R134 / GTR 13, EC 79 heritage approvals, or ISO 19881 for the container), burst ratio and cycle life, boss-to-liner sealing across −40°C to +85°C, liner permeation, and the carbon-fiber grade and resin system frozen in the type approval.
Type III CNG & 350-bar Hydrogen Tanks
Seamless aluminum liner overwrapped with carbon and E-glass composite providing high thermal conductivity during rapid fast-filling.
Liner alloy and forming route, autofrettage pressure and the resulting liner pre-stress, liner fatigue design and leak-before-break demonstration, galvanic isolation between aluminum and carbon (usually a glass layer), and the approval standard used, such as ISO 11119-2 or the vehicle regulation.
Bulk Gas Transport Tube Trailers
Large-diameter (450–600 mm) high-capacity Type IV composite cylinders bundled in 20ft and 40ft ISO container frames for road logistics.
Design and testing to ISO 11515 for large composite reinforced tubes, transport approval under ADR/RID in Europe or the applicable national rules elsewhere, frame and valve protection, pressure-relief devices, and bonfire, drop and impact results for both the tube and the assembled module.
Service conditions and applicable standards
Hydrogen pressure vessels experience rapid gas temperature spikes up to +85°C during high-flow 3-minute fast fills, sub-zero cold conditions down to -40°C during winter driving, high-pressure hydrogen permeation, and ambient road vibrations.
Sequential durability testing across temperature extremes
Hydrogen vehicle regulations apply a sequence of tests to the same containers: proof pressure, drop, surface damage, chemical exposure, then pressure cycling at ambient, low and high temperature with the container conditioned to those extremes, a high-temperature static hold, and finally a residual burst test that must still meet the required strength. The sequence is designed to expose interactions — for example a flaw from the drop test growing during hot cycling. Ask for the complete sequence report rather than isolated test results.
Flaw tolerance and drop testing
Composite cylinders must tolerate handling damage. Standards specify cutting flaws of defined length and depth into the composite and then pressure-cycling the cylinder, which must not rupture, and dropping cylinders from defined heights and orientations before cycling or burst. These tests set minimum composite thickness margins and protective outer layers such as glass overwraps and impact-absorbing end caps. In-service inspection criteria in the user manual should be based on the same flaw sizes.
| Component / Scope | US / ASTM reference | EN / ISO reference | China / regional reference | Engineering Test Basis |
|---|---|---|---|---|
| Composite Gas Cylinders — Fully Wrapped (Type III / IV) | ASTM D2585 | ISO 11119-3 / EN 12245 | GB/T 35544 | Hydraulic burst, ambient cycling (15,000 cycles), bonfire, and flaw tolerance |
| Hydrogen Fuel Cell Vehicles Safety Regulations | SAE J2579 | UN ECE R134 / EC 79 | GB/T 24549 | Fast filling verification, hydrogen permeation limits, and extreme temperature cycling |
| Compressed Natural Gas (CNG) Vehicle Cylinders | ANSI NGV 2 | ISO 11439 | GB/T 24160 | Gunfire penetration resistance, chemical exposure, and drop impact tests |
| Tensile Properties of Impregnated Carbon Fiber Strands | ASTM D4018 | ISO 10618 | GB/T 3362 | Tensile strength and modulus of resin-impregnated continuous carbon tows |
Supplier matches for Hydrogen & CNG
Chinese company profiles whose published products, processes or markets mention hydrogen & cng vocabulary. The matched terms are shown on each row; a match is a discovery signal, not a qualification or certification.
Zhongfu Shenying Carbon Fiber Co., Ltd.Lianyungang, Jiangsu, ChinaProcessDry-jet wet spinningStandardISO 9001MOQNot publicly listedLead timeNot publicly listedZhongfu Shenying Carbon Fiber Co., Ltd. was established in 2006 and is part of China National Building Material Group. The company develops, manufactures and sells carbon fiber and carbon-fiber composite materials, and was listed on the Shanghai Stock Exchange in 2022 under stock code 688295.
Product categoriesSYT45, SYT45S and SYT45T carbon fiberSYT49S, SYT49T and SYT49C carbon fiberSYT55, SYT65 and SYT70 high-strength carbon fiberWhy matchedProfile mentions: pressure vesselWebsitezfsycf.com.cn
Jiangsu Aosheng Composite Materials Technology Co., Ltd.Suzhou, Jiangsu, ChinaProcessCarbon fiber weaving and hybrid-fabric manufactureStandardNot publicly listedMOQNot publicly listedLead timeNot publicly listedJiangsu Aosheng Composite Materials Technology Co., Ltd. is a Suzhou-based carbon-composite company whose current corporate website and 2026 China Composites Expo listing support carbon-fiber woven and hybrid fabrics, prepreg, wind-blade pultruded plate and composite application development. The official site also presents automotive, sports, hydrogen, aviation and overseas footprints under the Aosheng group. GetFRP therefore assigns measured-demand phrases such as carbon fiber fabric, carbon fiber plate, pultruded, resin infusion and vacuum infusion only where a published product or manufacturing route supports them. Fishing rods may be an end use of prepreg, but they are not listed here as an Aosheng finished product. Likewise, automotive parts, sports products and hydrogen cylinders are marked as group-sector inquiries rather than automatically attributed to the Jiangsu parent factory. Buyers must confirm the exact legal entity, production site and specification behind a quotation. Awards, customer relationships, capacity, CNAS, patent and standards-participation statements on the website remain company claims, not GetFRP verification.
Product categoriesCarbon fiber woven fabrics — plain, twill, satin and unidirectionalCarbon fiber hybrid fabrics with aramid, glass or basalt fiberUnidirectional and woven carbon fiber prepregWhy matchedProfile mentions: hydrogen, type iii, type ivWebsiteaoshenghi-tech.com
HS Hyosung Carbon Materials (Jiangsu) Co., Ltd.Xinyi, Xuzhou, Jiangsu, ChinaProcessCarbon-fiber precursor stabilization, carbonization and surface treatment (group process description)StandardNot publicly listedMOQNot publicly listedLead timeNot publicly listedHS Hyosung Carbon Materials (Jiangsu) Co., Ltd. is the HS Hyosung Advanced Materials carbon-fiber entity in Xinyi, Xuzhou, Jiangsu. China Composites Expo lists the current Chinese entity. The group's current global-network page identifies HS HYOSUNG Carbon Materials (Jiangsu) Co., Ltd., its Xinyi Economic Development Zone location, telephone and Carbon Fiber product line. The official TANSOME page publishes standard-modulus 6K, 12K and 24K, intermediate-modulus 12K and 24K and ultra-high-tensile 12K fibers, with high-pressure vessel, cable-core, aerospace, wind, sports, industrial and construction uses. Public company reporting dates the Jiangsu entity to 2022 and says an expanded carbon-fiber line began operation in 2024. This profile connects the group portfolio to the identified Jiangsu manufacturing entity, but does not transfer the Korean group's full history, total capacity, certifications or every grade into verified Jiangsu-site capacity, approvals or design values.
Product categoriesTANSOME standard-modulus 6K carbon fiber filamentsTANSOME standard-modulus 12K carbon fiber filamentsTANSOME standard-modulus 24K carbon fiber filamentsWhy matchedProfile mentions: pressure vessel, hydrogen, cng
Glotech Electronics (Suzhou) Corp.Suzhou, Jiangsu, ChinaProcessElectronic-grade fiberglass weaving and finishingStandardNot publicly listedMOQNot publicly listedLead timeNot publicly listedGlotech Electronics (Suzhou) Corp. is Glotech Industrial's Suzhou producer and seller of electronic-grade fiberglass fabrics. The current official group website says the Suzhou subsidiary was established in 2000 and took over the parent company's electronic-fiberglass-fabric business; its footer publishes a Suzhou New District address, telephone and company-domain email. China Composites Expo lists the matching Chinese and English entity. The official catalog covers standard, lightweight, ultra-thin and multilayer-laminate fiberglass cloth, publishing styles 7628, 2116, 1080, 2165, 7667, 7637, 7638, 2125, 2313 and 2113, together with electronic- and industrial-grade quartz yarn and fabric. GetFRP maps only the fiberglass and quartz-fiber scope directly supported for the Suzhou business. The group website also presents Type IV composite cylinders made by Taiwan-based Deyu Composite. That separate subsidiary's LPG, CNG and pressure-vessel scope is not assigned to Glotech Electronics (Suzhou).
Product categoriesStyle 7628 electronic-grade fiberglass clothStyle 2116 lightweight electronic-grade fiberglass clothStyle 1080 ultra-thin electronic-grade fiberglass clothWhy matchedProfile mentions: type iv, composite cylinder, cngWebsiteglotechgf.com
Liaoning Meituo Technology Co., Ltd.Shenfu Demonstration Zone, Liaoning, ChinaProcessAluminum-alloy and metal pressure-liner manufacturingStandardNot publicly listedMOQNot publicly listedLead timeNot publicly listedLiaoning Meituo Technology Co., Ltd. describes itself on its current official website as a manufacturer of aluminum-alloy and other metal high-pressure cylinders, composite high-pressure cylinders, metal pressure-vessel liners and related products. The site dates the company to 2010 and locates it in Liaoning's Shenfu Demonstration Zone. Its published range includes carbon-fiber overwrapped composite cylinders, vehicle hydrogen cylinders, industrial specialty-gas and sampling cylinders, breathing-air, medical, diving, recreational, food-and-beverage and fire-extinguisher cylinders, plus aluminum liners. The China Composites Expo L directory supplies the exhibitor trail. Carbon fiber is the reinforcement in Meituo's composite-cylinder offer; the company is not presented here as a supplier of carbon-fiber tow, fabric, prepreg or generic carbon products. Performance, standard, certification, customer and export statements remain company-published claims. Qualification must match the quoted model, volume, pressure, liner and overwrap architecture, manufacturing site and destination-market approval evidence.
Product categoriesCarbon-fiber overwrapped composite cylindersVehicle hydrogen composite cylindersPositive-pressure breathing-apparatus composite cylindersWhy matchedProfile mentions: pressure vessel, composite cylinder, hydrogenWebsitesymtcl.com
Lianyungang Weide Composite Materials Facilities Co., Ltd.Lianyungang, Jiangsu, ChinaProcessContinuous steel-band-mandrel FRP pipe windingStandardNot publicly listedMOQNot publicly listedLead timeNot publicly listedLianyungang Weide Composite Materials Facilities Co., Ltd. says on its current official website that it was established in 2001 and develops and manufactures composite-production equipment. The published range covers continuous-filament-winding FRP pipe lines, high-pressure hydrogen-cylinder winding lines, four-axis and horizontal winding machines, high-pressure epoxy-pipe lines, centrifugal-casting GRP pipe lines, lighting-pole lines and supporting manipulators, curing ovens, resin-supply, intelligent feeding, conveying, joint-making and quality-assurance systems. China Composites Expo's L directory lists the matching exhibitor. Weide sells the machinery used to make pipes, cylinders and poles; those outputs are not presented as Weide-manufactured FRP or carbon-fiber products. GetFRP therefore excludes reinforcement, FRP-pipe and finished-cylinder supplier keywords. Capacity, performance, import-substitution, service-life and mechanical-property statements are supplier claims that must be validated against the quoted configuration, representative trials, FAT, SAT and contractual acceptance records.
Product categoriesContinuous-filament-winding FRP pipe production linesHigh-pressure hydrogen-cylinder winding production linesFour-axis high-precision filament winding machinesWhy matchedProfile mentions: hydrogen, composite cylinderWebsitewdfrp.com
Ningbo Motong Composite Materials Co., Ltd.Ningbo, Zhejiang, ChinaProcessComposite product requirement and duty definitionStandardNot publicly listedMOQNot publicly listedLead timeNot publicly listedNingbo Motong Composite Materials Co., Ltd. presents an integrated product, process, mold, equipment and line-development offer for series production of continuous-fiber composites. Its current official website describes non-preforming integrated prepreg compression molding (PPCM), hybrid CFRP or GFRP molding with metal, sandwich molding with paper fiber, foam, honeycomb or aramid, and a complete Type IV hydrogen-cylinder forming-process package covering liner, boss connection, high-speed low-carbon winding and rapid curing. SMC, HP-RTM and autoclave are listed as technology reserves. China Composites Expo independently lists the Ningbo company in its N directory. GetFRP treats these as engineering, process and line solutions. CFRP, GFRP, prepreg, metals and core materials are process inputs, while the Type IV vessel is a process-package target; none is presented here as Motong's standard raw-material or finished-cylinder catalog.
Product categoriesPPCM continuous-fiber composite molding process packageNon-preforming integrated prepreg compression-molding (PPCM) solutionHybrid compression-molding solution for CFRP or GFRP with metalWhy matchedProfile mentions: type iv, hydrogenWebsitemot-cn.com
Dalian Yuxing Water Treatment Equipment Co., Ltd.Dalian, Liaoning, ChinaProcessFRP pressure-vessel design and manufacture for membrane systemsStandardNot publicly listedMOQNot publicly listedLead timeNot publicly listedDalian Yuxing Water Treatment Equipment Co., Ltd. (also written on its website as Dalian Yuxing Water Purification Equipment Co., Ltd.; MEMSHELL / Mem shell) is a mainland-China manufacturer of FRP membrane housings and composite tubular products in Lushunkou District, Dalian, Liaoning. The current site title, Chinese footer, ICP filing and Dalian contacts use the shorter Chinese legal identity, while the company text uses the extended variant for the same business established in February 1998. The memshell.com.cn registrant, company-domain emails and MEMSHELL product brand connect the variants. China Composites Expo lists DALIAN YUXING WATER TREATMENT EQUIPMENT CO., LTD. and describes FRP membrane-separation pressure vessels, thermoset and thermoplastic pressure pipe, composite utility poles and thermoplastic composite panels; the current Shenzhen exhibition directory uses the shorter Chinese identity. The Chinese variants, English exhibition name, MEMSHELL brand, domain and Beijing sales office are deduplicated to this one Dalian mainland entity. Unrelated Yuxing companies are excluded. The site is accessible over HTTP and contains page assets updated in 2023, but HTTPS did not establish a connection during the 2026-08-13 review.
Product categoriesMEMSHELL 8-inch FRP pressure vessels for RO membrane systemsMEMSHELL 4-inch FRP housings for RO, ultrafiltration and low-pressure membranesMEMSHELL 2.5-inch FRP membrane housingsWhy matchedProfile mentions: pressure vesselWebsitememshell.com.cn
Chengdu Lu Chen New Materials Technology Co., Ltd.Chengdu, Sichuan, ChinaProcessHot-melt unidirectional and fabric prepreggingStandardBS EN ISO 9001:2015 and EN 9100:2018 (technically equivalent to AS9100D) — Bureau Veritas certificate CN052498; scope: manufacture of civil-aviation carbon-fiber prepreg and carbon-composite products; issued 2024-12-24, expires 2027-12-23; transcribed from the company-hosted certificate image and not independently status-checked with the issuer by GetFRPMOQNot publicly listedLead timeNot publicly listedChengdu Lu Chen New Materials Technology Co., Ltd. is a high-performance fiber-composites company in Xinjin, Chengdu, Sichuan. Its current official site dates the company to 2013 and presents the development, design, manufacture and sale of epoxy systems; carbon-, aramid- and glass-fiber prepregs; and related composite products. Its published equipment sections cover prepregging, four-axis winding, compression molding, CNC cutting, autoclave, clean-room/laser and high-temperature-oven systems. China Composites Expo lists the same entity as CHENGDU LU CHEN NEW MATERIALS TECHNOLOGY CO., LTD., assigns booth 6Y01 in its 2026 exhibitor list and categorizes the net-show range under glass-fiber woven goods, carbon fiber, aramid, prepreg and finished composite parts. Founding date, manufacturing capabilities and exhibit claims are company- or organizer-published and have not been independently site-audited by GetFRP.
Product categoriesCarbon-, aramid- and glass-fiber prepregsFast-cure, clear, flame-retardant, cryogenic and medium/high-Tg epoxy prepregsTooling prepreg and high-performance film adhesiveWhy matchedProfile mentions: pressure vesselWebsitelu-chen-composite.cn
Lianyungang Tuotian Aviation Equipment Co., Ltd.Lianyungang, Jiangsu, ChinaProcessComposite-process analysis and custom production-line designStandardISO 9001:2015 (company-published; confirm the current certificate, scope and validity)MOQNot publicly listedLead timeNot publicly listedLianyungang Tuotian Aviation Equipment Co., Ltd. is presented on its official website as a core subsidiary of Lianyungang Zhongtong Group and a developer and manufacturer of high-performance composite-processing equipment. The company publishes a roughly 30,000 m² production base with six specialized workshops and an industrial chain extending from R&D through serial manufacture. Its equipment serves pipe, hydrogen-cylinder and other pressure-vessel, utility-pole, tank, composite-shell and pultruded-product applications.
Product categoriesFully automatic continuous GRP/FRP pipe winding production linesWinding equipment for FRP pipe, oilfield high-pressure pipe and electrical-insulation tubeWinding equipment for FRP poles, gas cylinders, tanks and large containersWhy matchedProfile mentions: hydrogen, pressure vessel, gas cylinderWebsiteto-t.com
Showing 24 of 27 matched profiles. Search the full supplier directory
Buying checks before you send an RFQ
Protect quality, freeze test acceptance boundaries, and prevent material substitutions before commercial commitment.
- Verify certified third-party qualification reports under UN ECE R134, EC 79, or ISO 11119-3 conducted by notified test bodies.
- Check that winding tension is controlled in multi-axis CNC filament winding machines with real-time resin bath temperature and viscosity logging.
- Confirm every serial cylinder undergoes 100% factory hydrostatic proof testing (1.5x working pressure) and helium leak detection.
- Review plastic liner blow-molding and boss friction welding inspection records to confirm zero micro-void leak pathways.
Acceptance evidence to request
Ask for bonfire test records showing the thermally activated pressure relief device (TPRD) venting the cylinder before rupture — for engulfing and localized fire exposure where the regulation requires both — with the TPRD part number matching production. For every serial cylinder, require the hydrostatic proof-test record, leak-test result and traceability to liner, fiber and resin lots.
Buyer FAQ
Type III cylinders use a seamless metallic liner (usually aluminum) overwrapped with composite fiber, whereas Type IV cylinders use an ultra-lightweight polymer liner (HDPE or PA6), saving an additional 20% to 30% in structural tare weight.
Due to the negative Joule-Thomson coefficient of compressed hydrogen at ambient temperatures, gas expands and heats up rapidly when throttled into a tank, heating internal liner walls up to 85°C within 3 to 5 minutes.
The composite shell is made of carbon fiber and epoxy resin, which are completely inert and immune to atmospheric and chemical corrosion. An exterior polyurethane or glass/epoxy sacrificial wrap protects the carbon tows from road gravel chipping.
Depending on the regulation and fiber type, the minimum burst pressure for carbon-fiber cylinders is roughly 2.0 to 2.25 times the nominal working pressure, so a 700-bar tank must withstand about 1,400 to 1,575 bar or more, in addition to pressure-cycling, flaw-tolerance and fire tests.
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