HP265 steel plates for welded LPG cylinders are produced in accordance with the GB/T 6653 standard, specifically designed for manufacturing liquefied petroleum gas cylinders and other welded pressure vessels.
HP265 steel plates
With stable chemical composition, moderate strength, and excellent forming performance, HP265 steel plate is widely used in the mass production of safe and reliable gas cylinders.
Chemical Composition of HP265 Steel Plate
The chemical composition of HP265 steel plates for LPG cylinders is strictly controlled to ensure high steel purity and stable internal structure. Low phosphorus and sulfur content help reduce impurities and improve welding quality.
| Element | C (%) | Si (%) | Mn (%) | P (%) | S (%) | Als (%) |
|---|---|---|---|---|---|---|
| HP265 steel | ≤0.18 | ≤0.10 | ≤0.80 | ≤0.025 | ≤0.015 | ≥0.015 |
This composition enables HP265 gas cylinder steel plate to achieve fine grain structure and uniform performance, which is essential for pressure applications.
Mechanical Properties of HP265 Steel Plates
The mechanical performance of HP265 steel plate provides a good balance between strength and ductility, making it suitable for forming and welding processes.
| Property | Value |
|---|---|
| Yield Strength | ≥265 MPa |
| Tensile Strength | 410–520 MPa |
| Elongation (<3 mm) | ≥21% |
| Elongation (≥3 mm) | ≥27% |
With a yield strength of 265 MPa, HP265 steel plate for welded gas cylinders can withstand internal pressure effectively, while its elongation ensures flexibility during cold forming and deep drawing.
Application of HP265 Steel Plates for LPG Cylinders
HP265 steel plates for welded LPG cylinders are mainly used in the production of household LPG cylinders, propane tanks, and butane gas containers. These cylinders require materials that can maintain structural stability under repeated pressurization and depressurization cycles.
Due to its moderate strength and good ductility, HP265 gas cylinder steel plate performs reliably in these conditions. It supports efficient large-scale manufacturing and ensures consistent product quality, making it a widely adopted material in the gas cylinder industry.
Processing Performance of HP265 Steel Plate
In manufacturing, HP265 steel plates offer excellent processing performance. The material features a uniform internal structure, fine grain size, and stable mechanical properties in both longitudinal and transverse directions.
| Processing Method | Performance |
|---|---|
| Cold forming | Good |
| Deep drawing | Excellent |
| Welding | Excellent |
| Bending | Stable |
These characteristics allow HP265 steel plate for LPG cylinders to be easily processed using standard industrial equipment, improving production efficiency and reducing defect rates.
Specification of HP265 Steel Plates
HP265 steel plates for welded LPG cylinders are available in a wide range of sizes to meet different manufacturing requirements:
Thickness: 2.0 – 12 mm
Width: 1500 – 4020 mm
Length: 3000 – 27000 mm
All HP265 steel plate products can be customized according to customer specifications.
Testing and Quality Control of HP265 Steel Plate
To ensure safety and reliability, HP265 steel plates for gas cylinders undergo strict inspection and testing procedures before delivery:
- Explosion test
- Low-temperature impact test
- Ultrasonic examination
- Normalizing heat treatment
- Third-party inspection
These tests ensure that each batch of HP265 gas cylinder steel plate meets industry standards and customer requirements.
Supply Capability of HP265 Steel Plate
We provide stable supply of HP265 steel plates for welded LPG cylinders with reliable delivery and quality assurance:
Delivery Time: 7 days for stock, 30–50 days for production
Supply Capacity: 5000 MT per month
Loading Port: Shanghai, Tianjin, Qingdao
Surface: Clean, blasting, or painting as required
Packaging: Standard export seaworthy packing
As an experienced supplier of HP265 steel plates for LPG cylinders, we offer high-quality products, competitive pricing, and professional service.
If you are looking for a trusted source of HP265 gas cylinder steel plate, contact us now to get detailed specifications and the latest quotation
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What is HP265 steel plate used for?
HP265 steel plate is mainly used for manufacturing refillable gas cylinders and pressure vessels, especially in applications involving cyclic pressure such as refrigerant cylinders, air conditioning storage tanks, and automotive air systems, where good fatigue resistance is required.
What is the main advantage of HP265 cylinder steel?
The main advantage of HP265 steel is its excellent fatigue resistance under repeated pressure conditions, combined with good formability and stable chemical composition, making it ideal for long-term reusable gas containers.
What is the difference between HP265 and HP295 steel?
HP265 focuses on fatigue resistance and is suitable for medium-pressure, cyclic-use containers, while HP295 offers higher strength and is mainly used for LPG cylinders that require higher safety margins.
Is HP265 suitable for LPG gas cylinders?
HP265 can be used for LPG cylinders in some cases, but it is generally not recommended, as HP295 is the industry-preferred material due to its higher strength and better safety performance.
What is the typical thickness of HP265 steel plate?
HP265 steel plate is usually supplied in thicknesses ranging from 2.0 mm to 3.0 mm, with tight tolerance control to ensure consistent forming performance and pressure stability.
Is HP265 steel easy to weld?
Yes, HP265 steel has good weldability due to its low carbon content and controlled alloy composition, resulting in low cracking risk and stable weld seam quality.
What is the equivalent grade of HP265 steel?
HP265 is commonly equivalent to EN standard P265NB and ISO BW265, which are widely used in pressure vessel and cylinder manufacturing in international markets.
Can HP265 steel be used for high-pressure applications?
HP265 is suitable for medium-pressure environments, but for high-pressure gas cylinders, higher strength grades like HP325 or HP365 are recommended.
What surface condition is available for HP265 steel?
HP265 steel is typically supplied in hot rolled, pickled and oiled, or slit strip conditions, with pickled surfaces preferred for better forming and welding quality.
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