Top 4.0L Carbon Steel Cylinder Suppliers: Quality, Customization & Fast Delivery from China
4.0l carbon steel cylinder supplier 4.0l carbon steel cylinder manufacturer wholesale 4.0l carbon steel cylinder
When sourcing 4.0L carbon steel cylinders for industrial gases, diving oxygen, or food-grade applications (N₂O, CO₂, ethylene), import managers and wholesalers need a partner who guarantees consistent quality, compliance with US safety standards, and on-time delivery. As a 4.0L carbon steel cylinder supplier with over a decade of manufacturing expertise, Zhuzhou XingYe Chemical combines Chinese supply chain advantages with rigorous quality assurance, OEM/ODM flexibility, and globally recognized certifications. This page outlines how we meet your procurement needs for carbon steel cylinder solutions, from technical specs to logistics.
Finding a Reliable 4.0L Carbon Steel Cylinder Supplier – The Real Challenge
Buyers in the USA often face three critical pain points when looking for 4.0L carbon steel cylinder suppliers:
- Quality inconsistency – Cylinders from unverified factories may have hidden defects (weld porosity, improper heat treatment) leading to safety risks during refilling or transport.
- Long lead times & supply chain gaps – Many suppliers quote 45–60 days, causing inventory shortages for wholesalers and brand owners.
- Limited customization – Off-the-shelf cylinders often lack the valve types, colors, or branding required for specific gas applications (e.g., cream chargers vs. diving oxygen).
- Missing compliance documents – Without ISO 9001, COA, MSDS, or ECM, you face import delays or rejected shipments at US ports.
Our solution: A factory-direct 4.0L carbon steel cylinder supplier with full control over raw materials, manufacturing, and testing, offering 15–25 day production and complete OEM/ODM support.
Why Zhuzhou XingYe Chemical Stands Out as a 4.0L Carbon Steel Cylinder Supplier
Our 6,500 m² manufacturing facility in Zhuzhou, Hunan – dedicated to gas cylinder production and quality control.
Each 4.0L carbon steel cylinder undergoes hydrostatic testing and visual inspection before packaging.
Powerful Factory & Quality Assurance
Founded in 2014, we employ 120+ skilled workers and cover 6,500 m² of production area. Our 4.0L carbon steel cylinders are manufactured under ISO 9001:2015 quality management, with every batch tested for:
- Hydrostatic pressure resistance (≥250 bar)
- Uniform wall thickness (≥2.0 mm)
- Internal cleanliness for food-grade gas use (N₂O, CO₂)
- Weld integrity (X-ray spot checks)
We supply both standard and customized 4.0L cylinders with COA (Certificate of Analysis), MSDS, and applicable EC/ISO certification. (Please confirm exact certification requirements with our sales team.)
OEM/ODM Design – Your Brand, Your Specs
Whether you need a specific valve thread (5/8″ BSP, CGA 326 for nitrous oxide, or pin-index for medical oxygen), custom painting (any Pantone color), or laser-engraved logos, we deliver turnkey OEM/ODM carbon steel cylinder solutions. Our engineers collaborate with your team to match US market preferences, including DOT/UN compliance labelling.
| Parameter | Standard Value | Customization Options |
|---|---|---|
| Water Capacity | 4.0L | 3.0L – 6.0L |
| Material | Carbon Steel (30CrMo or equivalent) | Alloy steel for higher pressure |
| Working Pressure | 150 bar – 200 bar | Up to 300 bar (LP/HP options) |
| Valve Connection | G5/8 RH / CGA 320/326 | Pin-index, A-clamp, etc. |
| Finish | Blue / Green enamel | Any RAL color + Logo printing |
| Weight (approx.) | 7.5 kg (empty) | Depends on thickness |
All parameters are typical; final specs confirmed in order contract.
High-Speed Delivery Driven by China’s Supply Chain
Thanks to our in-house production and strong raw material partnerships, we maintain MOQ as low as 50 units and average lead time of 15–25 working days (depending on customization). For urgent orders, expedited production can be arranged. We ship via FOB (Shenzhen/Ningbo) or CIF to major US ports (Los Angeles, New York, Savannah). Packaging is in plywood crates with individual foam protection to prevent damage during transit.
Trust Endorsement – Certifications & Compliance
As a reliable 4.0L carbon steel cylinder supplier, we hold:
- ISO 9001:2015 quality management system
- CE, EC (Transportable Pressure Equipment Directive) for European standards
- COA (Certificate of Analysis) for each production batch
- MSDS compliant with US OSHA guidelines
- Food-grade certifications for N₂O and CO₂ applications (applicable grades)
We also invite third-party inspections (SGS, Bureau Veritas) upon request. All cylinders meet UN/ISO pressure vessel requirements.
Note: Compliance with DOT (US Department of Transportation) regulations is the importer’s responsibility. We provide all technical documents to facilitate DOT registration. Please confirm your specific import requirements with our sales team.
What Our Customers Say – Real Reviews from US Buyers
Mark R. – Import Manager, USA
“We needed 500 units of 4.0L carbon steel cylinders with custom CGA valves for our nitrous oxide distribution. XingYe delivered in 18 days, and the QC documentation was spot on. Highly reliable supplier.”
Jennifer L. – Brand Owner, California
“We switched from another supplier because of quality variability. The 4.0L cylinders from XingYe have consistent wall thickness and clean interior – perfect for our food-grade cream chargers. Great OEM painting too.”
Tom H. – Wholesaler, Texas
“I’ve been sourcing Chinese steel cylinders for 7 years. XingYe has the best lead time and communication. They even helped us with DOT paperwork. Our resellers love the quality.”

Sarah K. – Sourcing Agent, New York
“Low MOQ and competitive pricing made it easy for our trial order. The 4.0L cylinders arrived in perfect condition. Excellent value for money.”
Clear Call-to-Action – Get Your Quote Today
Ready to partner with a proven 4.0L carbon steel cylinder supplier? Contact our sales team for:
- Free sample (freight collect)
- Detailed quotation with FOB/CIF pricing
- Lead time confirmation
- Customization consultation (valves, colors, branding)
- Compliance document checklist
📧 Email: boss@happywhip.com | 📞 Phone/WhatsApp: +86 13787826843
Room 619-3, Henghe Industry And Trade Headquarters, No. 1099 Qingxia Road, Tongtangwan Street, Zhuzhou, Hunan, China
About the Author
Kevin Lin
Senior Product Engineer – Gas Equipment & Cylinders
With 15 years in the high-pressure cylinder industry, Kevin Lin leads technical development at Zhuzhou XingYe Chemical. He has overseen over 200 projects for international clients, specializing in carbon steel cylinder design, DOT/UN compliance, and supply chain optimization. His articles aim to help buyers make informed sourcing decisions.
Frequently Asked Questions About 4.0L Carbon Steel Cylinders
Q: What certifications do your 4.0L carbon steel cylinders have for the USA market?
A: We provide ISO 9001, CE, EC, COA, and MSDS. For US-specific DOT approval, we supply all necessary technical files to assist your registration. Please confirm with our team.
Q: What is the minimum order quantity (MOQ)?
A: Standard MOQ is 50 units for standard 4.0L cylinders. Customized orders may have higher MOQ (100–200 units). We also accept small trial orders.
Q: How long does shipping take to the USA?
A: Production takes 15–25 days. Sea freight from China to US West Coast is about 18–22 days, East Coast 25–30 days. We ship via FOB or CIF.
Q: Can you customize valves for nitrous oxide (N₂O) cream chargers?
A: Yes. We can fit CGA 326 (Cream Charger) valves, pin-index, or 5/8″ BSP. Our OEM service includes color-matching and laser engraving.
Disclaimer: All product specifications, certifications, and lead times are indicative. Please confirm exact details in the final order agreement. Zhuzhou XingYe Chemical Co., Ltd. is not liable for errors or omissions. Prices and availability subject to change.
