SA285 Grade C for pressure vessels

The SA 285 Grade C is a carbon steel plate used in pressure vessels. They are perfect for applications which require low to intermediate tensile strength. It is primarily used for manufacturing storage tanks and temperature controlled low pressure vessels.

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Product Description

SA285 Grade C for pressure vessels

1.What are the chemical compositions of SA285 Grade C for pressure vessels?

SA285 Grade C Chemical Composition
Grade	The Element Max (%)
Grade	C	Si	Mn	P	S	Al	Cr	Cu	Ni	Mo
SA285 Grade C	0.16	0.35	0.4-1.2	0.03	0.03	0.02	0.3	0.3	0.3	0.08

2.What is the yield strength of SA 283 Gr C?

Mechanical Properties of SA 283 GR. C Plate

Tensile strength	Yield strength, min, [MPa]	Elongation in 8″
55,000 75,000 psi [380 – 515 MPa]	30,000psi [205 MPa]	22% min

3.What is A285 grade C equivalent material?

ASTM A285 Grade C is a high-pressure steel grade whose equivalent European grade is the P235GH, with British standard having the 161 Gr. 360/164 Gr. 360 grade.

4.What is the difference between SA 285 GR C and A36?

Standards and Specifications

SA 285 GR C

Specified by ASTM A285/SA285(American Society for Testing and Materials).
Designed for low-to-moderate tensile strengthin pressure vessels and boilers.

A36

Specified by ASTM A36/A36M.
A general-purpose structural steel used for non-pressure vessel applications(e.g., construction, machinery).

Key Takeaways

Feature	SA 285 GR C	A36
Primary Use	Pressure vessels (low stress)	Structural steel (load-bearing)
Strength	Lower yield/tensile strength	Higher yield/tensile strength
Weldability	Good (low carbon)	Good, but slightly less than SA 285 due to higher Mn
Cost	Generally lower (simpler composition)	Slightly higher (higher performance)