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UNS S30815 - SUS 308L

S30815 is a022Cr22Ni5Mo3N stainless steel, belongs to the ultra-low carbon stainless steel, has better corrosion resistance and processing performance. It is a class of stainless steel with nitrogen and molybdenum elements added on the basis of 304 stainless steel to improve its resistance to pitting corrosion and stress corrosion cracking.

GB/T ISO ASTM TOCT DIN JIS

National rules model：

American Society for Testing and Materials (ASTM): A666 TP308L

JIS Standard: SUS 308L

European Norm (EN): X2CrNiMoN18-12 (1.4308)

Unified Numbering System (UNS): S30815

Chemical Composition:

Chromium (Cr): 19.0-23.0%

Nickel (Ni): 10.0-14.0%

Molybdenum (Mo): 2.0-3.0%

Nitrogen (N): 0.10-0.20%

Manganese (Mn): ≤2.0%

Silicon (Si): ≤1.0%

Phosphorus (P): ≤0.045%

Sulfur (S): ≤0.030%

Carbon (C): ≤0.03% (as a maximum limit for "L" grade)

Physical Properties:

Density: Approximately 7.9 g/cm³

Melting Point: Around 1390-1450°C

Thermal Expansion Coefficient: 16.3 x 10⁻⁶ /°C (at room temperature)

Mechanical Properties:

Tensile Strength: 515 MPa

Yield Strength: 205 MPa

Elongation: 40%

Hardness: Approximately 200 HV

Application Areas:

Chemical Processing: Used in equipment and piping systems that handle various chemicals due to its good general corrosion resistance.

Petroleum and Chemical Industry: Ideal for oil and gas industry applications where sulfuric and phosphoric acids are present.

Marine Applications: Suitable for marine environments due to its excellent corrosion resistance and strength.

Food Processing: Used in equipment that processes, stores, and handles food products, given its non-porous surface and compatibility with food-grade standards.

Automotive Industry: Employed in components where corrosion resistance and light weight are necessary.

Nuclear Industry: S30815 has properties that make it suitable for use in nuclear industry applications due to its resistance to stress corrosion cracking and puncturing.

Heat Exchangers: Widely used in equipment that requires corrosion resistance and where high pressures and temperatures are encountered.

Please note that the specific chemical composition, physical, and mechanical properties, as well as country-specific standards, may vary. The information provided here is for general guidance and may not be exhaustive or up-to-date. Always refer to the latest standards or manufacturer's data for precise details.

Common Surfaces

Stainless Steel Standards Comparison Table

STS	USA	UNS	CHINA	EURONORM		RUSSIA	SWEDISH	JAPANESE
GRADE	AISI/ASTM	NO	GB	NO	NAME	GOST	SS	JIS
201	201	S20100	12Cr17Mn6Ni5N	1.4372	-	-	-	SUS 201
301	301	S30100	12Cr17Ni7	1.4310	X 12 CrNi 17 7	-	2331	SUS 301
303	303	S30300	1Cr18Ni9MoZr	1.4305	X 10 CrNiS 18 9	-	2346	SUS 303
304	304	S30400	06Cr18Ni9	1.4301	X 6 CrNi 18 10	08KH18N10 06KH18N11	2332	SUS 304
304L	304L	S30403	022Cr19Ni10	1.4307	X 3 CrNi 18 10	03KH18N11	2352	SUS 304L
316	316	S31600	0Cr17Ni12Mo2	1.4401	X 6 CrNiMo 17 12 2	-	2347	SUS 316
316L	316L	S31603	022Cr17Ni12Mo2	1.4404	X 3 CrNiMo 17 12 2	-	2348	SUS 316L
316Ti	316Ti	S31635	0Cr18Ni12Mo2Ti	1.4571	X 6 CrNiMoTi 17 12 2	08KH17N13M2T 10KH17N13M2T	2350	-
321	321	S32100	0Cr18Ni11Ti	1.4541/1.4878	X 6 CrNiTi 18 10	12KH18N10T	2337	SUS 321
347	347	S34709	0Cr18Ni11Nb	1.4550	X 6 CrNiNb 18 10	-	2338	SUS 347
309S	309S	S30908	0Cr23N13	1.4833	X 6 CrNi 22 13	20KH23N18	-	SUS 309S
310S	310S	S31008	06Cr25Ni20	1.4842	X 6 CrNi 25 20	20KH25N20S2	2361	SUS 310S
416	416	S41600	Y1Cr13	1.4005	X12CrS13	-	2380	SUS 416
2205	2205	S32205/S31803	00Cr22Ni5Mo3N	1.4462	X2CrNiMoN22-5-3	02Ch22N5AM2	2377	SUS 329J3L
2507	2507	S32750	00Cr25Ni7Mo4N	1.4410	X 2 CrNiMoN 25-7-4	-	-	-
904L	904L	N08904	-	1.4539	-	-	-	-
254SMO	254SMO	S31254	-	1.4547	X1CrNiMoCuN20-18-7	-	2378	-
253MA	253MA	S30815	-	1.4835	X9CrNiSiNCe21-11-2	-	2368	-
17-4PH/630	17-4PH/630	S17400	0Cr17Ni4Cu4Nb	1.4542	X5CrNiCuNb16-4	05Ch16N4D2B	-	SUS630

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