HP265 steel plates are specially designed for welded LPG cylinders under the GB/T 6653 standard, offering a perfect balance of strength, ductility, weldability, and cost control.
HP265 steel plates
For manufacturers looking to improve production efficiency while ensuring cylinder safety, HP265 is one of the most reliable and widely adopted materials in the market.
As a professional supplier, Gnee provides stable-quality HP265 steel plates with consistent performance, helping customers reduce defects and optimize manufacturing costs.
mechanical properties of HP265 steel plates
The mechanical properties of HP265 steel plates are optimized for pressure-bearing applications such as LPG cylinders.
| Property | Value |
|---|---|
| Yield Strength | ≥ 265 MPa |
| Tensile Strength | 410 – 530 MPa |
| Elongation | ≥ 26% |
HP265 offers sufficient strength to withstand internal gas pressure while maintaining excellent ductility to prevent brittle failure.
During LPG cylinder manufacturing, steel plates must undergo deep drawing and forming processes.
HP265 steel plates feature low carbon content and controlled composition, which allows:
- Smooth deep drawing without cracking
- Better shaping of cylinder bodies and end caps
- Reduced scrap rate during processing
This makes HP265 ideal for high-efficiency, large-scale production lines.
Chemical Composition of HP265 Steel Plates
HP265 Steel Plates Chemical Composition
| Element | Content (%) |
|---|---|
| C | ≤ 0.16 |
| Mn | 0.50 – 1.20 |
| P | ≤ 0.025 |
| S | ≤ 0.015 |
Why HP265 performs better:
- Low carbon reduces welding cracks
- Low P & S improve weld seam integrity
- Stable composition ensures consistent welding results
- This helps manufacturers reduce defects and improve product reliability.
Advantage of HP265 Steel Plates
LPG cylinders are repeatedly filled and discharged, which requires materials with good fatigue resistance.
HP265 steel plates provide:
- Stable microstructure
- Good fatigue resistance
- Long service life under repeated pressure
This ensures long-term safety and durability of gas cylinders.
HP265 Steel Plates Supply Range and Specifications
| Thickness | Width | Length | Delivery Condition |
|---|---|---|---|
| 2.0 – 12 mm | 1000 – 2500 mm | 2000 – 12000 mm | Hot Rolled |
Custom sizes are available based on your cylinder design requirements.
HP265 steel plates combine strength, formability, weldability, and cost efficiency, making them a proven solution for welded LPG cylinder manufacturing.
- They help manufacturers achieve:
- Higher production efficiency
- Lower defect rates
- Better cost control
- Reliable long-term performance
Looking for a reliable supplier of HP265 steel plates?
Gnee offers:
- Stable quality with strict inspection
- Competitive pricing for bulk orders
- Fast delivery time
- Export support and technical guidance
Contact us now to get the latest HP265 steel plate price and professional support!
Contact now to get HP265 steel plate Quote
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.