What material is UNS S31603?

What material is UNS S31603?

316L Stainless Steel UNS S31603. Type 316L is a low carbon austenitic chromium-nickel stainless steel with corrosion resistance similar to type 316 but with resistance to intergranular corrosion following welding. It can be processed into various practical product forms, including plates, coils, pipes, bars, and wires. For detailed chemical composition and free samples, please contact our factory immediately.

 

What is equivalent to UNS S31603 material?

The material S31603 is equivalent to several other standards, including 316L stainless steel (AISI) and 1.4404 (EN/DIN). Other equivalents include X2CrNiMo17-12-2 (EN/DIN name), SUS316L (Japanese JIS), and 316S11 (British BS standard).

Grade	UNS No	Old British		Euronorm		Swedish SS	Japanese JIS
		BS	En	No	Name
316L	S31603	316S11	-	1.4404	X2CrNiMo17-12-2	2348	SUS 316L

 

UNS S31603 Specifications:
ASTM A240: Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for General Applications.
ASTM A276: Standard Specification for Stainless Steel Bars and Shapes.
UNS S31603: Unified Numbering System for 316L stainless steel.
ISO 5832-1: Material specification for metallic materials used in medical devices, ensuring 316L is suitable for biomedical applications.

 

UNS S31603 chemical composition

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	N
316L	Min	-	-	-	-	-	16.0	2.00	10.0	-
	Max	0.03	2.0	0.75	0.045	0.03	18.0	3.00	14.0	0.10

 

UNS S31603 material Properties

Grade	Tensile Str (MPa) min	Yield Str 0.2% Proof (MPa) min	Elong (% in 50 mm) min	Hardness
				Rockwell B (HR B) max	Brinell (HB) max
316L	485	170	40	95	217

 

Typical physical properties for 316-grade stainless steels.

Grade	Density (kg/m3)	Elastic Modulus (GPa)	Mean Co-eff of Thermal Expansion (µm/m/°C)			Thermal Conductivity (W/m.K)		Specific Heat 0-100 °C (J/kg.K)	Elec Resistivity (nΩ.m)
			0-100 °C	0-315 °C	0-538 °C	At 100 °C	At 500 °C
316/L/H	8000	193	15.9	16.2	17.5	16.3	21.5	500	740

 

ASTM A240/ASME SA240 UNS S31603 Allowable Stress

Temperature (°C)	Allowable Stress (MPa)
100	155
200	145
300	135
400	125
500	115
600	105

 

What is the difference between S31603 and 316L?

The main difference between 316 and 316L stainless steel is the level of carbon content, weldability, corrosion resistance and mechanical properties. SS316 has a 0.08% max carbon content while SS316L (UNS S31603) only has a maximum 0.03% carbon content.

 

What is the difference between UNS S31603 and S31600 stainless steel?

The main difference is that UNS S31600 is the designation for standard Type 316 stainless steel, which has a higher carbon content, while UNS S31603 is for Type 316L stainless steel, which has a lower carbon content. This lower carbon in 316L improves its resistance to sensitization corrosion and makes it ideal for welded applications.

 

Whether you need UNS 31600 stainless steel for cost-sensitive, non-welded components or UNS 31603 stainless steel for high-corrosion welded applications, we offer certified and fully traceable material (including mill test reports per EN 10204 3.1).

UNS S31600 (316) and UNS S31603 (316L) are widely used austenitic stainless steels, available in a variety of product forms, including: stainless steel plate (cold-rolled/hot-rolled), stainless steel round bar, hexagonal bar, angle, pipe (welded/seamless), coil, wire, flanges, butt-weld fittings, fasteners, and more.

Contact our technical team today with your project details (material form, dimensions, application) to receive a free, personalized quote and secure the best price! Email: sales@gneestainless.com