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GB/T 6653 HP325 Steel Plates and Strips For Welded Gas Cylinders

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GB/T 6653 HP325 Steel Plates and Strips For Welded Gas Cylinders

GB/T 6653 HP325 steel plate and strip is a high-quality carbon structural steel material specifically designed for welded gas cylinders, offering specific strength along with excellent toughness, plasticity, and weldability.

Standard :
GB/T 6653
Grade :
HP325
Thickness :
2.0 - 14.0 mm
Width :
1100.0 -1500.0 mm

Special thickness, width, and length can be negotiated separately.
We also provide customized processing services.If you have any questions, please contact us.

General Description of GB/T 6653 HP325 Steel Plates and Strips For Welded Gas Cylinders

GB/T 6653 HP325 Carbon steel plates and strips possess high strength, good weldability, and excellent impact toughness, and are primarily used for manufacturing welded gas cylinders.

Grade	HP325
Standard	GB/T 6653: Chinese National Standards - Steel plates and strips for welded gas cylinders
Delivery Conditions	Hot-rolled
Surface Quality	Free from cracks, scars, folds, blisters, and other defects.
Weldability	Good weldability, control the heat input, preheating (50~100℃) before welding can reduce the risk of cold cracking.
Machinability	Good formability, easy to process such as cold stamping, stretching, and bending.
Quality Control	Material certificate Ultrasonic Testing (UT) or Radiographic Testing and Charpy V-notch impact test can be performed as required.

Chemical Composition of GB/T 6653 HP325 Steel Plates and Strips For Welded Gas Cylinders

Grade	HP325
Element	C	Si	Mn	P	S	Al
Content (%)	≤ 0.20	≤ 0.35	≤ 1.50	≤ 0.025	≤ 0.012	≥ 0.020

* If necessary, alloy elements other than those in this table may be added.

Mechanical Properties of GB/T 6653 HP325 Steel Plates and Strips For Welded Gas Cylinders

Grade	Yield Strength (ReH) [min, MPa]	Tensile Strength (Rm) [MPa]	Elongation (A) [min, %]	Bend Test
HP325	325	490 - 600	18 (thickness < 3 mm) 22 (thickness ≥ 3 mm)	Bend angle = 180° Inside radius = 2.0 times the thickness Crack-free

Applications of GB/T 6653 HP325 Steel Plates and Strips For Welded Gas Cylinders

1. Industrial Welding Cylinders: Oxygen cylinders, nitrogen cylinders, argon cylinders, acetylene cylinders, etc.

2. Liquefied Petroleum Gas (LPG) Cylinders: Household and commercial gas tanks, propane cylinders.

3. Other Welded Cylinders: Automotive compressed natural gas cylinders, etc.

Other Information

International Equivalent Materials

Grade	Standard	Yield Strength (ReH) [min, MPa]	Tensile Strength (Rm) [MPa]	Elongation (A) [min, %]
HP325	GB/T 6653	325	490-600	18 (t < 3 mm) 22 (3 ≤ t ≤ 5 mm)
P310NB	EN 10120	310	460 - 550	21 (t < 3 mm) 28 (3 ≤ t ≤ 5 mm)
SG325	JIS G 3116	325	490(min)	22

About Ordering:

Packaging: Standard export seaworthy packaging or as per customer requirements
Delivery Time: 20-30 working days, 10-15 working days for stock goods
Port of Loading: Shanghai, Tianjin, Qingdao
Supply Ability: 2,000 metric tons per month
MOQ: 1 piece
Payment Terms: T/T, LC

Our Advantages:

Our steel products are highly competitive in both quality and price.
We have ample spot resources available.
Our suppliers are all large steel enterprises in China, including: Bao Steel, Shan Steel, An Steel, Shougang Group, Wuhan Iron and Steel, Nisco, HBIS Group, Anyang Iron & Steel, etc.
We provide customized steel processing services and offer one-stop solutions.

Related Products

GB/T 6653 is the standard for steel plates and strips for welded gas cylinders specified in the Chinese national standard. It includes five grades: HP345, HP325, HP295, HP265, and HP235.These grades of steel plates and strips for welded gas cylinders all exhibit excellent strength, good plasticity, and good weldability. They are primarily used for manufacturing low-pressure welded gas cylinders commonly used in industry and liquefied petroleum gas (LPG) cylinders.

GB/T 6653 HP325 Steel Plates and Strips For Welded Gas Cylinders

GB/T 6653 HP295 Steel Plates and Strips For Welded Gas Cylinders

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