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316L SS SMLS PIPE CONSTRUCTION PROJECT CASE.jpg

TP316L Stainless Steel Seamless Pipe - China Suppliers & Factory for Fast Delivery

Discover high-quality TP316L seamless stainless steel pipes, expertly crafted by ZONSUN STEEL, a leading supplier and factory based in China.

Our TP316L stainless steel pipes conform to international standards, ensuring durability and reliability for various applications.

We maintain a substantial stock for immediate shipment, guaranteeing fast delivery to meet your project needs.

Product Detail

Introduction

TP316L is a low-carbon variant of austenitic stainless steel (316L grade) commonly used in tubing and piping systems. It contains 16-18% chromium, 10-14% nickel, 2-3% molybdenum, and a maximum 0.035% carbon, enhancing corrosion resistance—particularly against chlorides and acids.

Key Features

Enhanced Corrosion Resistance: Superior resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC) due to 2-3% molybdenum addition.

Excellent Weldability & Formability: Suitable for welding without post-weld heat treatment; retains corrosion resistance in welded zones.

Hygienic & Non-Reactive: Smooth surface resists bacterial growth, ideal for food processing, pharmaceuticals, and medical devices.

Standards Compliance: Meets ASTM A312 (pipes), ASTM A269 (tubing), and ASME SA-213 (boiler applications).

Why Choose TP316L Stainless Steel Pipe?

Superior Chloride Resistance: Molybdenum (Mo) content provides unmatched protection against pitting/crevice corrosion in saltwater or de-icing salt exposure, outperforming 304/304L.

Acid and Chemical Compatibility: Ideal for handling sulfuric, acetic, and phosphoric acids in industrial processes.

Durability in Harsh Environments: Maintains structural integrity in coastal, marine, or high-humidity settings with minimal maintenance.

Hygienic and Non-Reactive: Meets FDA, EU, and ASTM standards for food, beverage, and pharmaceutical hygiene.

Long-Term Cost Savings: Reduced downtime and replacement costs due to extended service life in corrosive conditions.

Certified Performance: Complies with ASTM A312, A358, and ASME SA-312 for pressure piping applications.

Example Use Case

A coastal power plant replaced carbon steel cooling pipes with 316L stainless steel pipes, eliminating chloride-induced corrosion failures and cutting annual maintenance costs by 60%.

Material Specification

Standard: ASTM A312/A312M

O.D: 1/8" NB TO 32" NB , (10.29MM-812.80MM) ,(Customization Available)

W.T: SCH 10S, SCH 40S, SCH 80S, SCH160, SCH XXS (Customization Available)

Application:

Chemical and Petrochemical Industry
Pharmaceutical and Biotechnology
Food and Beverage Industry
Marine and Offshore Engineering
Medical Devices and Implants
Energy and Power Generation
Water Treatment and Desalination
Architectural and Decorative Applications

End: Plain End, Beveled End, Threaded

Processing: Cut-to-length; Polishing.

Inspection:

100% PMI TESTED
EN10204.3.1B MILL TEST CERTIFICATE
THIRD PARTY INSPECTION ACCEPTED

Delivery Condition: Cold Drawn, Annealed and Pickled/ Polished /Bright Annealed/ Sand blasting/ Shot Blasting.

Marking: All SS SMLS Pipes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or as per the customer’s request)

Packing: Packed in Wooden Boxes, plywood cases, Steel Strips Bundled, or as per Customers Requests

Specials: Sizes and Specifications other than above can be customized on request.

Specification parameters

TP316L chemical composition

HEAT NO.		CHEMICAL COMPOSITION (%)
HEAT NO.		C	Mn	P	S	Si	Ni	Cr	Mo
STAND.	MIN.						10.00	16.00	2.0
STAND.	MAX.	0.035	2.00	0.045	0.030	1.00	14.00	18.00	3.0

TP316L Mechanical Properties

Mechanical Properties
Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness
Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Rockwell B (HR B)	Brinell (HB)
TP316L	485	170	35	95	220

Equivalent Grades - (ASTM A312 TP316L Equivalent Grades)

ASTM A312 TP316L Equivalent Grades
USA (ASTM / AISI)	Germany (DIN, WNr)	Japan (JIS)	France (AFNOR)	England (BS)	Euronorms (EN)	China (GB)	International (ISO)
TP316L 316L S31603	1.4404	SUS316L	Z2CND17-12	316S11	X2CrNiMo17-12-2	022Cr17Ni12Mo2	X2CrNiMo17-12-2 S31603

ASTM A312/A312M Standard Cold Machining Size Deviation Permitted

ASTM A312/A312M-09 Standard Permitted Tolerance of WT and OD
Nominal Outside Diameter		Allowable deviation	Nominal wall thickness		Allowable deviation
1/8”—1 1/2“	(10.29—48.26)	+0.4 -0.8	1/8”—1 1/2“	(10.29-73.03) all of t	+20 -12.5
>1 1/2“—4”	(48.26—114.3)	±0.8	3“—18”	(88.9-457.2) t/D=5%	+22.5 -12.5
>4”—8"	(114.3—219.08)	+1.6 -0.8	3“—18”	(88.9-457.2) t/D>5%	+15 -12.5
>8“—18"	(219.08—457.2)	+2.4 -0.8	≥20"	=508 t of wld pipe	+17.5 -12.5
>18”—26“	(457.2—660.4)	+3.2 -0.8	≥20"	=508 t/D=5%	+22.5 -12.5
>26”—34”	(660.4—863.6)	+4.0 -0.8	≥20"	=508 t/D>5%	+15 -12.5
>34“—48"	(863.6—1219.2)	+4.8 -0.8
Thin wall pipe (t/D=3%) ovality condition: Any cross section in a steel pipe Dmax Dmin=1.5%nominal, and (Dmax Dmin)/ 2 conforms to the stipulated diameter tolerance range.

Comparison Table Of American Standard Dimensions - (ANSI B36.19 & ANSI B36.10)

OD DN	IN	OD MM	ANSI B36.19										ANSI B36.10
			Nominal diameter in inches
			5s		10s		Sched.40s		Sched.40	Sched.80s		Sched.80	10		20		30		Standard
			mm	Kg/m	mm	Kg/m	mm	Kg/m	mm	mm	Kg/m	mm	mm	Kg/m	mm	Kg/m	mm	Kg/m	mm	Kg/m
6	1/8"	10.29	-	-	1.24	0.281	1.73	371	1.73	2.41	0.467	2.41	-	-	-	-	-	-	1.73	0.371
8	1/4"	13.72	-	-	1.65	0.499	2.24	0.644	2	3.02	0.809	3.02	-	-	-	-	-	-	2.24	0.644
10	3/8"	17.14	-	-	1.65	0.64	2.31	0.858	2.31	3.2	1.118	3.2	-	-	-	-	-	-	2.31	0.858
15	1/2"	21.34	1.65	0.814	2.11	1.016	2.77	1.26	2.77	3.73	1.62	3.73	-	-	-	-	-	-	2.77	1.26
20	3/4"	26.67	1.65	1.034	2.11	1.298	2.87	1.68	2.87	3.91	2.19	3.91	-	-	-	-	-	-	2.87	1.68
25	1"	33.4	1.65	1.312	2.77	2.125	3.38	2.5	3.38	4.55	3.23	4.55	-	-	-	-	-	-	3.36	2.5
32	1 1/4"	42.16	1.65	1.674	2.77	2.732	3.56	3.38	3.56	4.85	4.46	4.85	-	-	-	-	-	-	3.56	3.38
40	1 1/2"	48.26	1.65	1.926	2.77	3.155	3.68	4.05	3.68	5.08	5.4	5.08	-	-	-	-	-	-	3.68	4.05
50	2"	60.32	1.65	2.424	2.77	3.992	3.91	5.43	3.91	5.54	7.47	5.54	-	-	-	-	-	-	3.91	5.43
65	2 1/2"	73.02	2.11	3.747	3.05	5.345	5.16	8.62	5.16	7.01	11.4	7.01	-	-	-	-	-	-	5.16	8.62
80	3"	88.9	2.11	4.585	3.05	6.557	5.49	11.28	5.49	7.62	15.25	7.62	-	-	-	-	-	-	5.49	11.28
90	3 1/2"	101.6	2.11	5.272	3.05	7.526	5.74	13.56	5.74	8.08	18.62	8.08	-	-	-	-	-	-	5.74	13.56
100	4"	114.3	2.11	5.945	3.05	8.496	6.02	16.06	6.02	8.56	22.29	8.56	-	-	-	-	-	-	6.02	16.06
125	5"	141.3	2.77	9.639	3.4	11.74	6.55	21.76	6.55	9.52	30.92	9.52	-	-	-	-	-	-	6.55	21.76
150	6"	168.28	2.77	11.514	3.4	14.037	7.11	28.23	7.11	10.97	42.52	10.97	-	-	-	-	-	-	7.11	28.23
200	8"	219.08	2.77	15.049	3.76	20.334	8.18	42.49	8.18	12.7	64.57	12.7	-	-	6.35	33.28	7.04	36.8	8.18	42.4
250	10"	273.05	3.4	23.028	4.19	28.29	9.27	60.24	9.27	12.7	81.46	15.09	-	-	6.35	41.7	7.8	51	9.27	60.24
300	12"	323.85	3.96	31.806	4.57	36.633	9.52	73.76	10.31	12.7	97.36	17.48	-	-	6.35	49.68	8.38	65.14	9.52	73.76
350	14"	355.6	3.98	34.99	4.78	42.102	9.52	-	11.13	-	-	19.05	6.35	54.63	7.92	67.98	9.52	81.21	9.52	81.21
400	16"	406.4	4.19	42.35	4.78	48.22	9.52	-	12.7	-	-	21.44	6.35	62.58	7.92	77.9	9.52	93.13	9.52	93.18
450	18"	457.2	4.19	47.7	4.78	54.3	9.52	-	14.27	-	-	23.82	6.35	70.5	7.92	87.8	11.13	122.12	9.52	105.05
500	20"	508	4.77	60.32	5.54	69.766	9.52	-	15.09	-	-	26.19	6.35	78.47	9.52	116.97	12.7	155	9.52	116.97
550	22"	558.8	4.77	-	5.54	-	9.52	-	-	-	-	28.58	6.35	86.42	9.52	128.89	12.7	170.86	9.52	128.89
600	24"	609.6	5.54	84.1	6.35	96.215	9.52	-	17.48	-	-	30.96	6.35	96.215	9.52	140.8	14.7	209.54	9.52	140.81
650	26"	660.4	-	-	-	-	9.52	-	-	-	-	-	7.92	127.58	12.7	202.65	-	-	9.52	152.73
700	28"	711.2	-	-	-	-	9.52	-	-	-	-	-	7.92	137.52	12.7	218.54	15.88	271.94	9.52	164.65
750	30"	762	6.35	120.59	7.92	147.45	9.52	-	-	-	-	-	7.92	147.45	12.7	234.44	15.88	291.81	9.52	176.57
800	32"	812	-	-	-	-	9.52	-	17.48	-	-	-	7.92	157.39	12.7	250.33	15.88	311.67	9.52	188.5
850	34"	863.6	-	-	-	-	9.52	-	17.48	-	-	-	7.92	167.32	12.7	266.22	15.88	331.54	9.52	200.42
900	36"	914.4	-	-	-	-	9.52	-	19.05	-	-	-	7.92	177.26	12.7	282.18	15.88	351.41	9.52	212.34

Frequently Asked Questions (FAQ)

What is TP316L stainless steel?

TP316L is a low-carbon variant of austenitic stainless steel (316L grade). It contains 16-18% chromium, 10-14% nickel, and 2-3% molybdenum, which significantly enhances its resistance to corrosion, particularly against chlorides and acids.

How does TP316L compare to other grades like 304?

TP316L contains 2-3% molybdenum, which provides superior resistance to pitting and crevice corrosion in chloride-rich or marine environments compared to standard 304/304L stainless steel.

What are the main applications of TP316L pipes?

Due to its hygienic, non-reactive, and corrosion-resistant properties, TP316L is widely used in chemical and petrochemical processing, pharmaceuticals, food and beverage industries, marine engineering, and medical devices.

What standards do TP316L pipes comply with?

TP316L stainless steel pipes and tubing comply with international standards such as ASTM A312 (for pressure pipes), ASTM A269 (for general tubing), and ASME SA-213 (for boiler applications).

Why is the low carbon content of TP316L beneficial?

The low carbon content (maximum 0.035%) minimizes harmful carbide precipitation during welding. This ensures the material maintains excellent weldability and retains its corrosion resistance in welded zones without the need for post-weld heat treatment.