A240 310S stainless steel plate different with A240 310 stainless steel plate

Comparasion with common stainless steel materials A240 304,A240 310S stainless steel plate and A240 310H stainless steel plate contain higher Chromium (24.0-26.0%) and higher Nickel (19.0-22.0%),so they both have a better anti-corrosion ability in bad weathering than A240 304 stainless steel plate.

So what is the main difference between A240 310S stainless steel plate and A240 310 stainless steel plate ? A240 310S stainless steel plate requires a lower carbon restriction in chemical composition in heat analysis,it means A240 310S stainless steel plate has a high resistance for corrosion.However,A240 310 stainless steel plate contains medium carbon,and mainly for high temperature applications such as furnace parts and heat treatment equipments.
 

A240 310S vs A240 310		Chemical composition: Heat Analysis  Max%
Standard	Grade	C	Mn	P	S	Si	Cr		Ni	N
ASTM A240/A240M	310S	0.08	2.00	0.045	0.030	1.50	24.0-26.0		19.0-22.0
ASTM A240/A240M	310	0.25	2.00	0.045	0.030	1.75	24.0-26.0		19.0-22.0
Mechanical Properties:		UNS Designation		Yield strength		Tensile strength		Hardness max.
				Mpa  Min.		Mpa		Brinell HBW
ASTM A240/A240M	310S	UNS S31008		205		515		217
ASTM A240/A240M	310	UNS S31000		205		515		217