EN10028-6 P500QL2 For Pressure Vessel Plate

What is EN10028-6 P500QL2 Steel Plate?

 

EN10028-6 P500QL2 is a high-strength, weldable fine-grain steel plate specifically designed for pressure vessel applications requiring exceptional performance at extremely low temperatures down to -60°C .

• Standard: EN 10028-6:2017 (Flat products for pressure purposes – Part 6: Weldable fine grain steels, quenched and tempered)
• Material Number: 1.8865
• Delivery Condition: Quenched and Tempered (Q&T)
• Key Feature: Low-temperature impact resistance at -60°C (L2 designation)

 

P500QL2 Grade has a good weldable and used in high temperature equipment and pressure vessel.

 

• P…Q means the -20 degree and the impact energy is 27J
• P…QH means the -20 temperature quality and the impact energy is 27J
• P…QL1 means the -40 temperature quality and the impact energy is 27J
• P…QL2 means the -60 temperature quality and the impact energy is 27J

 

Technical Requirements & Additional Services for P500QL2 steel plate:

 

♦ High tension test
♦ Low temperature impacting test
♦ Simulated post-welded heat treatment (PWHT)
♦ Ultrasonic test under EN 10160,ASTM A435,A577,A578
♦ Issued Orginal Mill test certificate under EN 10204 FORMAT 3.1/3.2
♦ Shot blasting and Painting,Cutting and welding as per end user's demands

 

►Mechnical property for P500QL2 steel plate:
 

Thickness (mm)
P500QL2	≤ 50	> 50 ≤ 100	> 100
Yield strength (≥Mpa)	500	480	440
	≤ 100		> 100
Tensile strength (Mpa)	590-770		540-720

►Chemical composition for P500QL2 steel plate (Heat Analysis Max%)
 

Main chemical elements composition of P500QL2 steel plate
C	Si	Mn	P	S	B	N	Cr
0.18	0.60	1.70	0.020	0.010	0.005	0.015	1.00
Cu	Mo	Nb	Ni	Ti	V	Zr
0.30	0.70	0.05	1.50	0.05	0.08	0.15

 

Key Characteristics & Advantages of P500QL2 steel plate

• Exceptional Low-Temperature Toughness: Maintains ductility and strength at -60°C for cryogenic applications
• High Strength-to-Weight Ratio: Enables lighter vessel designs with higher pressure ratings
• Excellent Weldability: Fine-grain structure allows for high-quality welds without preheating
• Good Fatigue Resistance: Withstands cyclic loading in pressure vessel operations
• Corrosion Resistance: Enhanced through alloy composition for harsh environments

 

Applications of EN10028-6 P500QL2

 

EN10028-6 P500QL2 is ideal for:

• Cryogenic Pressure Vessels: Storage and transport of LNG, liquid nitrogen, and other cryogenic fluids
• Offshore & Onshore Oil/Gas Equipment: High-pressure separators, heat exchangers, and pipeline components
• Chemical Processing: Reactors, distillation columns, and pressure vessels for low-temperature processes
• Power Generation: Boiler components, steam drums, and pressure piping systems
• LNG Infrastructure: Tankers, terminals, and regasification plants requiring -60°C performance

 

GNEE Steel's Manufacturing Excellence

 

At GNEE Steel, we produce EN10028-6 P500QL2 plates with:

• 18+ Years of Pressure Vessel Steel Expertise
• State-of-the-Art Q&T Heat Treatment: Precision quenching and tempering for consistent properties
• Rigorous Quality Control: Full traceability from raw material to final product
• Certifications: ISO 9001, EN 10204 3.2, and pressure equipment directives compliance
• Custom Solutions: Cut-to-size, special surface treatments, and third-party inspections available

 

Why Choose GNEE for EN10028-6 P500QL2?

 

✅ Trusted Supplier: Exported to 70+ countries with 600+ global partners

✅ Competitive Pricing: Direct factory pricing with no middlemen

✅ Fast Delivery: In-stock availability for standard sizes

✅ Technical Support: Expert team for material selection and application guidance

✅ Customization: Thickness, width, length, and special processing options

 

FAQ

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1. What welding procedures are recommended?

Answer:
Standard Welding Protocol:

Preheat: 200-250°C (for t>25mm)

Consumables: EN ISO 16834-A G 62 5 M21 4Ni1.5Mo

Heat Input: 1.5-2.5 kJ/mm

Interpass Temp: 200-250°C

PWHT: 610-630°C × 1hr/25mm (for t>40mm)

Testing: Impact at -40°C

Special Notes:
• No buttering layer required for standard applications
• Hydrogen control <5ml/100g sufficient
• Hardness surveys only for thickness >75mm

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2. When should engineers specify P500QL2?

Answer:
Ideal for:
✔ Industrial gas storage (-40°C)
✔ LPG processing vessels
✔ Cost-sensitive cryogenic projects
✔ Thickness range 20-120mm

Not recommended for:
✖ LNG primary containment (-162°C)
✖ Fracture-critical designs needing -60°C toughness
✖ Sour service without supplemental testing

 

 

 

 

 

 

We have excellent after-sales service. If you have any questions about SA302 Grade A vessel platel, you can contact us and we will reply you within two hours.

 

 

 

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