High-Strength Cylinder Steel Coils & Plates
Ensure maximum safety and manufacturing efficiency with Runfei Steel Group’s premium cylinder steel. Specially engineered for the production of LPG gas cylinders and high-pressure vessels, our steel coils and plates deliver exceptional deep drawing capabilities and perfect weldability. Browse our certified grades below, including HP295 and HP345, designed to meet the rigorous safety and yield strength standards of the global pressure vessel industry.
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Trusted Steel Supplier for Pressure Vessels & Gas Cylinders
Manufacturing pressure vessels leaves zero room for error. Since 1998, Runfei Steel Group has been a highly reliable distributor and processor of specialty steel, supplying premium cylinder steel to gas tank manufacturers worldwide. Sourced from top-tier mills and processed in our 170-acre Tianjin facility, our cylinder steel is formulated with precise chemical compositions to withstand high-pressure gas containment safely. We export heavily to regions with high LPG cylinder demand across Asia, Africa, and the Middle East.
Key Mechanical Properties of Our Cylinder Steel
Producing a safe and durable gas cylinder requires steel with specific, uncompromising characteristics. Our HP series (such as HP295 and HP345) and equivalent SG series structural grades provide:
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Exceptional Deep Drawing & Formability: Gas cylinders are manufactured by deep-drawing steel halves. Our cylinder steel offers excellent elongation and plasticity, ensuring it can be deeply stamped and formed without thinning, cracking, or fracturing.
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Superior Weldability: With a strictly controlled carbon equivalent (CEV) and low sulfur/phosphorus content, our steel ensures flawless, leak-proof seam welding—critical for preventing pressurized gas explosions.
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Uniform Thickness & High Yield Strength: Precise dimensional tolerances across the entire coil ensure consistent wall thickness in the final cylinder, guaranteeing it meets exact burst pressure safety ratings.
Custom Slitting & Processing Services
We understand that gas cylinder manufacturers require steel ready for the stamping press. Utilizing our 300,000-ton processing capacity, we offer comprehensive value-added services. We can accurately slit wide cylinder steel coils into specific custom widths, or cut them into ready-to-use circular blanks, significantly reducing your factory’s prep time and material scrap rate.
Frequently Asked Questions (FAQ)
Q: What steel grades do you supply for LPG gas cylinder manufacturing?
A: We primarily supply highly sought-after pressure vessel grades such as HP295 and HP345 (which are standard designations for high-pressure gas cylinder steel), offering excellent yield strength and deep-drawing properties.
Q: Do you provide Mill Test Reports (MTR) for your cylinder steel?
A: Absolutely. Complete traceability is mandatory for pressure vessel manufacturing. Every shipment of our cylinder steel is accompanied by official Mill Test Reports detailing the exact chemical composition, yield strength, tensile strength, and elongation parameters.
Q: Can you process the steel coils to my exact width requirements before shipping?
A: Yes. Our heavy-duty service center in Tianjin is equipped with high-precision slitting lines. We can slit master coils into the exact narrow widths required by your cylinder stamping machines, ready for immediate production upon arrival.
