ASME SA240 316L (TP316L, S31603) Stainless Steel Plate

ASME SA240 316L (also SA-240 TP316L, SA240 Gr 316L, UNS S31603, EN 1.4404, JIS SUS316L, GB 022Cr17Ni12Mo2) is the low-carbon molybdenum austenitic stainless plate grade of the ASME code. Its 0.030% max carbon prevents sensitization during welding, and 2–3% Mo gives better pitting resistance in chlorides than 304. Annealed plate needs 485 MPa tensile, 170 MPa yield and 40% elongation.

Gangsteel, a steel plate exporter, supplies SA240 316L plate and sheet, often dual-certified 316/316L.

SA240 316L chemical composition

Element	Heat analysis, %
C	≤ 0.030
Mn	≤ 2.00
P	≤ 0.045
S	≤ 0.030
Si	≤ 0.75
Cr	16.0–18.0
Ni	10.0–14.0
Mo	2.00–3.00
N	≤ 0.10

Source: ASTM A240/A240M (UNS S31603). Product (check) analysis tolerances are in ASTM A480/A480M.

Product (check) analysis tolerances, ASTM A480/A480M

Element	Specified limit range, %	Tolerance over max / under min, %
C	> 0.010 to 0.030	0.005
Mn	> 1.00 to 3.00	0.04
P	to 0.040 incl. / > 0.040 to 0.20	0.005 / 0.010
S	to 0.040 incl.	0.005
Si	to 1.00 incl.	0.05
Cr	> 15.00 to 20.00	0.20
Ni	> 10.00 to 20.00	0.15
Mo	> 1.75 to 7.00	0.10
N	0.02 to 0.19	0.01

Source: ASTM A480/A480M, product analysis tolerances (Annex table). A240 specifies heat analysis; a product (check) analysis may deviate from the heat limits only by these amounts.

SA240 316L mechanical properties

Property	Requirement (annealed)
Tensile strength, min	485 MPa (70 ksi)
Yield strength 0.2%, min	170 MPa (25 ksi)
Elongation in 50 mm, min	40%
Hardness, max	217 HBW / 95 HRB

Source: ASTM A240/A240M Table 2.

Related: SA240 316 plate, ASTM A240 316L plate, SA240 304L plate.

We are SA 240 Material of ASME SA240 316L(S31603) TP316L stainless steel plate material supplier.

https://gangsteel.net/product/Stainless/SA240/list_193_3.html

https://gangsteel.net/product/Stainless/SA240/2012/1224/316L.html

1. SA 240 gr 316L material specification:

Our team provided the SA240 Grade 316L with cold rolled and hot rolled stainless steel.
SA240 316L Cold rolled surface, SA240 316L 2B, 2D, SA240 316L BA, SA240 316L NO.4, SA240 316L 8K
Material specification: Thick 0.1 to 6mm, width: 20mm to 2000mm
SA240 316L Hot rolled surface, No.1
Material specification: Thick 3 to 300mm, width: 500mm to 4200mm

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ASME SA240 Material standard specification for chromium and chromium-nickel stainless steel plate, sheet, and strip for pressure vessels and for general applications

1. Our team is specialized in supplying ASME SA240 steel plate in A240 316L. We have min 600Tons stock size for each size stainless steel. We also have cutting factory which could cut stainless component according to our customer requirement. Please contact us by email admin@gangsteel.com  if any requirement in stainless steel material.

For more information of ASME SA240 316Lstainless steel plates, please check them in following:

 

ASME SA240 316L Chemical Composition
Grade	The Element Max (%)
	C	Mn	P	S	Si	Cr	Ni
ASME SA240 316L	0.030	2.00	0.045	0.030	0.75	16.0-18.0	10.0-14.0
	Mo	N	Cu	Cb
	2.0-3.0	0.10

Our our team could provide equipment to check width, length, thickness, and element before delivery for our customer. We promise No large tolerance, No fake material, Better Service, Competitive price.

4. ASME SA240 316L Mechanical Property

Grade	ASME SA240 316LMechanical Property
	Yield	Tensile	Elongation	Hardness, max
ASME SA240 316L	Min Mpa	Mpa	Min  %	Brinell	Rockwell B
	170	485	40%	217	95

5.What is the difference between SA 240 GR 316L and SA 312 TP 316L?

These are two different product forms of 316L stainless steel, each covered by a specific ASME specification:

Feature	SA 240 GR 316L	SA 312 TP 316L
Standard	ASME SA-240	ASME SA-312
Form	Plate, sheet, or strip	Seamless or welded pipe
Material Type	Austenitic stainless steel	Austenitic stainless steel
Primary Use	Pressure vessel walls, tanks, heat exchanger shells, etc.	Process piping, pressure piping, heat exchanger tubing
Manufacturing Process	Rolled plate/sheet, often cut or formed	Extruded (seamless) or welded pipe/tube
Product Shape	Flat products	Tubular products

Summary

• SA 240 GR 316Lis plate, intended for flat components such as tank shells, pressure vessel walls, structural applications.
• SA 312 TP 316Lis pipe, intended for piping systems used in transporting fluids, gases, or chemicals under pressure or temperature.

Both are made of the same 316L material, but used in completely different shapes and applications.

Example Usage:

• SA 240 316L Plate: Used to fabricate the shell of a chemical reactor or storage tank.
• SA 312 TP 316L Pipe: Used for the piping that connects vessels or transports corrosive fluids.

6. Sa 240 gr 316L equivalent in the following

EQUIVALENT STEEL GRADE ACCORDING TO OTHER STANDARD FOR ASME SA240 316L
No	JIS G4304	ASTM	UNS	KS	EN 10088	AS	CNS
1	SUS201	201	S20100	STS201	1.4372	201-2	201
2	SUS202	202	S20200	STS202	1.4373	-	202
3	SUS301	301	S30100	STS301	1.4319	301	301
4	SUS304	304	S30400	STS304	1.4301	304	304
5	SUS304L	304L	S30403	STS304L	1.4306	304L	304L
6	SUS304N1	304N	S30451	STS304N1	1.4315	304N1	304N1
7	SUS304N2	XM21	S30452	STS304N2	-	304N2	304N2
8	SUS304LN	304LN	S30453	STS304LN	-	304LN	304LN
9	SUS305	305	S30500	STS305	1.4303	305	305
10	SUS309S	309S	S30908	STS309S	1.4833	309S	309S
11	SUS310S	310S	S31008	STS310S	1.4845	310S	310S
12	SUS316	316	S31600	STS316	1.4401	316	316
13	SUS316Ti	316Ti	S31635	-	1.4571	316Ti	316Ti
14	SUS316L	316L	S31603	STS316L	1.4404	316L	316L
15	SUS316N	316N	S31651	STS316N	-	316N	316N
16	SUS316LN	316LN	S31653	STS316LN	1.4429	316LN	316LN
17	SUS316J1	-	-	STS316J1	-	316J1	316J1
18	SUS316J1L	-	-	STS316J1L	-	-	316J1L
19	SUS317	317	S31700	STS317	-	317	317
20	SUS317L	317L	S31703	STS317L	1.4438	317L	317L
21	SUS321	321	S32100	STS321	1.4541	321	321
22	SUS347	347	S34700	STS347	1.4550	347	347
23	SUS329J1	329	S32900	STS329J1	1.4477	329J1	329J1
24	SUS329J3L	-	S31803	STS329J3L	1.4462	329J3L	329J3L
25	SUS405	405	S40500	STS405	1.4002	405	405
26	SUH409	409	S40900	STS409	1.4512	409L	409L
27	SUS410L	-	-	STS410L	-	410L	410L
28	SUS430	430	S43000	STS430	1.4016	430	430
29	SUS434	434	S43400	STS434	1.4113	434	434
30	-	-	S43940	-	1.4509	439	439
31	SUS444	444	S44400	STS444	1.4521	444	444
32	SUS403	403	S40300	STS403	-	403	403
33	SUS410	410	S41000	STS410	1.4006	410	410
34	SUS420J1	420	S42000	STS420J1	1.4021	420	420J1
35	SUS420J2	-	-	STS420J2	1.4028	420J2	420J2
36	SUS440A	440A	S44002	STS440A	-	440A	440A

 

7. SA240 316L Stainless steel plate question:

 

What is dual grade stainless steel?

 

Dual certification refers to two different material or standard certified together to meet both of them, the most common example is 304 and 304L stainless steel grade, that occupy the largest proportion for use in stainless steel, because they have excellent properties to meet the most case

 

What is dual certified 316 316l?

 

316/316L Dual Certified is an extra low carbon version of 316, eliminating harmful carbide precipitation during welding. Also has superior resistance to intergranular corrosion after welding of stress relieving.

 

 

What is the composition of 316 stainless steel?

 

Type 316 steel is an austenitic chromium-nickel stainless steel that contains between two and 3% molybdenum. The molybdenum content increases corrosion resistance, improves resistance to pitting in chloride ion solutions, and increases strength at high temperatures.

 

What is AISI 316 stainless steel?

 

Alloy 316/316L (UNS S31600/ S31603) is a chromium-nickel- molybdenum austenitic stainless steel developed to provide improved corrosion resistance to Alloy 304/304L in moderately corrosive environments. It is often utilized in process streams containing chlorides or halides.

 

What is SA 240 GR 316L?

SA 240 GR 316Lrefers to a grade of austenitic stainless steel plate, certified under the ASME SA-240 standard, with the material grade being 316L.

• "SA"stands for ASME Section II, Part A, which covers materials used in pressure vessels and boiler applications.
• 316Lis a low-carbon version of 316 stainless steel, offering excellent corrosion resistance, especially against chlorides and marine environments.
• Common uses: pressure vessels, heat exchangers, chemical tanks, and marine applications.

What is the difference between ASTM A240 and ASME SA240?

Feature	ASTM A240	ASME SA240
Issuing Body	ASTM International	ASME (American Society of Mechanical Engineers)
Purpose	General specification for stainless steel plate, sheet, and strip	Boiler and pressure vessel quality version of A240
Application	Broad, including general structural use	Specifically for pressure vessels and boilers
Certification	Not necessarily pressure vessel compliant	Mandatory for pressure vessel code compliance (ASME Section VIII)

In essence: The material and chemical composition are the same, but SA240 is used for code-stamped pressure applications, requiring stricter traceability and certification.

What material is ASME SA240?

ASME SA240covers a wide range of austenitic, ferritic, and duplex stainless steel plates, sheets, and strips, used in the fabrication of pressure vessels and boilers.

Example grades under SA240:

• 304 / 304L
• 316 / 316L
• 309S / 310S
• 321 / 347
• 2205 (duplex)
• 904L (super austenitic)

So, ASME SA240 is a specification, and the material is defined by the grade — for example, SA240 316L means stainless steel 316L plate for pressure vessels.

 What is the ASTM grade for 316L?

The ASTM grade for 316L stainless steel plate is:

ASTM A240 Grade 316L

It refers to low-carbon austenitic stainless steel with:

• Carbon content ≤ 0.03%
• Better weldability
• Excellent corrosion resistance, especially against pitting in chloride environments

What is SA 240 GR 316L equivalent?

SA 240 GR 316L is equivalent to the following international standards:

Standard	Equivalent Grade
ASTM	A240 316L
EN(Europe)	1.4404 / X2CrNiMo17-12-2
JIS(Japan)	SUS 316L
GB/T(China)	022Cr17Ni12Mo2 (or 0Cr17Ni12Mo2)
UNS	S31603

 

If you have requirement for asme sa240 316L stainless steel sheet and stainless steel coils, please contact us for quotation.

ASME SA240 316L (TP316L, S31603) Stainless Steel Plate FAQ

What is SA240 316L?

ASME SA-240 Type 316L (UNS S31603) low-carbon Cr-Ni-Mo austenitic stainless steel plate, sheet and strip for pressure vessels.

What is the difference between 316 and 316L?

316L limits carbon to 0.030% (316: 0.08%), improving weld corrosion resistance; 316 has higher minimum strength (515/205 MPa vs 485/170 MPa).

What is dual certified 316/316L?

Plate whose carbon is 0.030% max and whose strength meets the higher 316 minimums, so it can be certified to both grades.

Is 316L better than 304?

For chlorides, sea water and many acids, yes, thanks to molybdenum. 304 is cheaper and adequate for most dry or mild environments.

Is 316L magnetic?

No, annealed 316L is austenitic and essentially non-magnetic; slight magnetism may appear after heavy cold work or in welds.

What filler metal is used for 316L?

ER316L (TIG/MIG) or E316L-16 (stick).

What is the PREN of 316L?

About 23–25 (PREN = Cr + 3.3Mo + 16N).