Crude oil tank shell material - A515 Grade 70 steel plates

A515 Grade 70 steel is a carbon steel plate specified by the ASTM (American Society for Testing and Materials) for use in pressure vessels, particularly at medium to high temperatures. It's known for its good strength, durability, and weldability, making it suitable for boilers, heat exchangers, and other applications requiring moderate to high-temperature resistance.

Chat Now

Send Inquiry

Product Description

1.What are the chemical composition requirements for A515 Grade 70 steel plate used in crude oil storage tank shell construction?

A515 grade 65 Chemical Composition
Grade	The Element Max(%)
Grade	C	Mn	P	S	Si
A515 grade 65	0.28-0.33	0.98	0.035	0.035	0.13-0.45

2.What is the difference between A 516 Grade 60 and A 515Grade 70 steel?

Property	A516 Grade 60	A515 Grade 70
Standard	ASTM A516 (Pressure Vessel Quality – PVQ)	ASTM A515 (Intermediate-Temperature Service)
Primary Use	Low-temperature pressure vessels (e.g., LPG storage, reactors)	High-temperature pressure vessels (e.g., boilers, heat exchangers)
Service Temp	-30°C to 450°C	Up to 650°C (better creep resist

3.Why is A515 Grade 70 commonly used for crude oil storage tank shells?

High-temperature suitability: Crude oil storage may require heating (to prevent solidification), necessitating materials with excellent heat resistance.
Strength requirements: Capable of withstanding hydrostatic pressure and thermal stress.
Cost-effectiveness: More economical than stainless steel while offering better performance than A516 for moderate-temperature applications.

Products Categories