• Description

310/310S is a high performance material in the stainless steel series,310 has excellent high temperature resistance,it can remain stable in extremely high temperature environments,has strong oxidation resistance,and is often used in high temperature furnace components,burners,etc.310S is an improved version of 310,which reduces the resistance to intergranular corrosion.It is especially suitable for welding applications such as chemical equipment,heat exchangers,etc.Both of them have good corrosion resistance and cam be used for a long time in a variety of harsh environments.They are indispensable high quality materials in industrial manufacturing.

• 310/310S VS 201

Both 310 and 310S stainless steel are high performance heat-resistant steels,but each has its own characteristics.310 has higher levels of chromium and nickel,it has excellent oxidation resistance and high temperature resistance,it also can remain stable in extremely high temperature environments,and it is suitable for high temperature furnace parts and burners,etc.However,its higher carbon content may cause intergranular corrosion problems,especially after welding.

In contrast,310S is a low-carbon version of 310 with carbon content reduced to below 0.08%,which significantly improves the resistance to intergranular corrosion and is particularly suitable for welding applications such as chemical equipment and heat exchanges.Both of them have strong corrosion resistance,but 310S has better corrosion resistance and stability after welding.If the application scenario involves a lot of welding,310S is better choice,if the main concern is high temperature performance and less welding,310 can also do the job.

• Chemical Composition 

	C	Si	Mn	S	P	Cr	Ni
310	0.25 max	1.75 max	2.00 max	0.030 max	0.045 max	24.00-26.00	19.00-22.00

 

	C	Si	Mn	S	P	Cr	Ni
310S	0.08 max	1.50 max	2.00 max	0.030 max	0.045 max	24.00-26.00	19.00-22.00

•  Grade Specification Comparison

The following table outlines the grade comparisons for 416 stainless steels:

Sınıf	JIS	ASTM	EN	KS	GB
310	/	310	1.4841	STS310S	20Cr25Ni20

 

Sınıf	JIS	ASTM	EN	KS	GB
310S	SUS 310S	310S	1.4845	/	06Cr25Ni20

•  Mechanical Properties

310

Item	Value	Unit
Tensile strength	≥515	MPa
Yield strength	≥205	MPa
Elongation	≥40	%
Brinell Hardness	≤217	HB
Rockwell Hardness	≤95	HRB

310S

Item	Value	Unit
Tensile strength	≥520	MPa
Yield strength	≥205	MPa
Elongation	≥40	%
Reduction	≥50	%
Brinell Hardness	≤187	HB

•  Surface Finish

2B

BA

NO.1

NO.4

8K

SB

• Delivery Status

Annealed

Solution Annealed / Solution Treated

Cold Drawn / Cold Worked

Hot Rolled

Cold Rolled

Stress Relieved

Quenched and Tempered

Pickled

• Features

Excellent Machinability

→ Both 310 and 310S are austenitic stainless steels with good machinability, suitable for various machining processes like CNC turning and milling. However, their higher nickel and chromium content compared to free-machining steels may result in slightly higher tool wear.

→ These grades are ideal for applications requiring high precision and surface finish, such as manufacturing components for high-temperature equipment and chemical processing machinery.

→ The low carbon content of 310S further enhances its machinability by reducing the risk of work hardening and improving surface integrity during machining.

• Shapes

Round bars, coils, plates, flat, pipes/tubes.

• Uygulama

310 and 310S stainless steel have been widely used in many industrial fields and special environments due to their excellent high temperature resistance,oxidation resistance and corrosion resistance.The following are their main usage scenarios:shafts,gears,fasteners

Fermentation tank stirring blades,food-grade pipes

Autoclave chamber

Inner wall lining of exhaust gas treatment system

Engine components,thermal protection system

High temperature reactors,heaters,pipes

Furnace tubes,furnace linings,radiant tubes