P265GH vs P295GH

‌‌	‌P265GH (EN 10028-2)‌	‌P295GH (EN 10028-2)‌	‌‌
‌‌	<= 0.20%	<= 0.20%	Carbon maximum is the same, but P295GH may use other alloy adjustments to enhance strength.
‌‌	<= 0.40%	<= 0.50%	P295GH allows slightly higher silicon content, potentially for improved high-temperature properties.
‌‌	0.80–1.40%	1.00–1.60%	P295GH has higher manganese content to increase strength and hardness.
‌‌	<= 0.025%	<= 0.025%	Phosphorus control is the same, ensuring low impurity levels.
‌‌	<= 0.015%	<= 0.015%	Sulfur control is the same, reducing hot brittleness.
‌‌			P295GH may use microalloying or additional alloying elements to enhance high-temperature performance.

‌‌	‌P265GH‌	‌P295GH‌	‌‌
‌‌	>= 265 MPa	>= 295 MPa	P295GH has higher yield strength, suitable for higher-pressure environments.
‌‌	410–530 MPa	440–570 MPa	P295GH has a higher tensile strength range, making it structurally stronger.
‌‌	>= 22%	>= 20%	P265GH has slightly better ductility, while P295GH focuses on strength.
‌‌	>= 27 J (at 0℃ or 20℃)	>= 27 J (at 0℃ or 20℃)	Impact toughness requirements are similar, but P295GH may maintain performance under higher pressure.

‌‌	‌P265GH‌	‌P295GH‌	‌‌
‌‌			P295GH may require stricter heat treatment to achieve higher strength.
‌High-Temperature Performance‌	Suitable for low to medium-temperature pressure vessels	Suitable for higher-temperature and higher-pressure environments	P295GH maintains strength better at elevated temperatures.
‌‌	Boilers, medium-pressure vessels, pipelines	High-pressure boilers, petrochemical equipment, thick-walled vessels	P295GH is used in scenarios requiring higher mechanical loads.
‌‌			Due to higher strength, P295GH needs attention to preheating and post-weld heat treatment.
‌‌	EN 10028-2	EN 10028-2	Both belong to the European pressure vessel steel standard, but P295GH is a higher grade.

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