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Stainless Steel 304L Tubes | ASTM A213 TP304L & ASTM A249 TP304L Tubing

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Chemical Composition

Stainless Steel 304L Tubes are low-carbon austenitic stainless steel tubes widely used for heat exchangers, condensers, pressure equipment, food processing, pharmaceutical plants, chemical processing, and marine applications. Their lower carbon content minimizes carbide precipitation during welding, providing superior corrosion resistance without post-weld heat treatment. We supply ASTM A213 TP304L seamless tubes, ASTM A249 TP304L welded tubes, ASTM A269 instrumentation tubes, bright annealed tubes, cold drawn tubes, capillary tubing, and customized stainless steel tubing worldwide.

Detailed Information

304L Stainless Steel Tubing Manufacturer | UNS S30403 Seamless & Welded Tubes

Stainless Steel 304L Tubes are among the most widely used stainless steel tubing products for industries requiring outstanding corrosion resistance, excellent weldability, and reliable mechanical strength. The “L” grade contains lower carbon than standard 304 stainless steel, making it ideal for welded applications where resistance to intergranular corrosion is essential.

As an experienced SS 304L tube supplier, we provide high-quality tubing manufactured according to international standards for demanding industrial environments. Our product range includes seamless, welded, heat exchanger, instrumentation, hydraulic, capillary, and bright annealed tubes suitable for high-performance applications.

Whether customers require 304L stainless steel tubing for process piping or precision instrumentation, we offer products with strict quality inspection, dimensional accuracy, and complete material traceability.

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New York City, Los Angeles, Chicago, Houston, Phoenix, Philadelphia, San Antonio, San Diego, Dallas, San Jose, Austin, Jacksonville, Fort Worth, Columbus, Charlotte, San Francisco, Indianapolis, Seattle, Denver, Washington, Boston, El Paso, Nashville, Detroit, Oklahoma City, Portland, Las Vegas, Memphis, Louisville, Baltimore, Milwaukee, Albuquerque, Tucson, Fresno, Mesa, Sacramento, Atlanta, Kansas City, Colorado Springs, Omaha, Raleigh, Miami, Long Beach, Virginia Beach, Oakland, Minneapolis, Tulsa, Tampa, Arlington, New Orleans, Wichita, Bakersfield, Cleveland, Aurora, Anaheim, Honolulu, Santa Ana, Riverside, Corpus Christi, Lexington, Henderson, Stockton, Saint Paul, Cincinnati, St. Louis, Pittsburgh, Greensboro, Lincoln, Anchorage, Plano, Orlando, Irvine, Newark, Durham, Chula Vista, Toledo, Fort Wayne, St. Petersburg, Laredo, Jersey City, Chandler, Madison, Lubbock, Scottsdale, Reno, Buffalo, Gilbert, Glendale, North Las Vegas, Winston-Salem, Chesapeake, Norfolk, Fremont, Garland, Irving, Hialeah, Richmond, Boise, Spokane, Baton Rouge, Tacoma, San Bernardino, Modesto, Fontana, Des Moines, Moreno Valley, Santa Clarita, Fayetteville, Birmingham, Oxnard, Rochester, Port St. Lucie, Grand Rapids, Huntsville, Salt Lake City, Frisco, Yonkers, Amarillo, Glendale, Huntington Beach, McKinney, Montgomery, Augusta, Aurora, Akron, Little Rock, Tempe, Columbus, Overland Park, Grand Prairie, Tallahassee, Cape Coral, Mobile, Knoxville, Shreveport, Worcester, Ontario, Vancouver, Sioux Falls, Chattanooga, Brownsville, Fort Lauderdale, Providence, Newport News, Rancho Cucamonga, Santa Rosa, Peoria, Oceanside, Elk Grove, Salem, Pembroke Pines, Eugene, Garden Grove, Cary, Fort Collins, Corona, Springfield, Jackson, Alexandria, Hayward, Clarksville, Lakewood, Lancaster, Salinas, Palmdale, Hollywood, Springfield, Macon, Kansas City, Sunnyvale, Pomona, Killeen, Escondido, Pasadena, Naperville, Bellevue, Joliet, Murfreesboro, Midland, Rockford, Paterson, Savannah, Bridgeport, Torrance, McAllen, Syracuse, Surprise, Denton, Roseville, Thornton, Miramar, Pasadena, Mesquite, Olathe, Dayton, Carrollton, Waco, Orange, Fullerton, Charleston, West Valley City, Visalia, Hampton, Gainesville, Warren, Coral Springs, Cedar Rapids, Round Rock, Sterling Heights, Kent, Columbia, Santa Clara, New Haven, Stamford, Concord, Elizabeth, Athens, Thousand Oaks, Lafayette, Simi Valley, Topeka, Norman, Fargo, Wilmington, Abilene, Odessa, Columbia, Pearland, Victorville, Hartford, Vallejo, Allentown, Berkeley, Richardson, Arvada, Ann Arbor, Rochester, Cambridge, Sugar Land, Lansing, Evansville, College Station, Fairfield, Clearwater, Beaumont, Independence, Provo, West Jordan, Murrieta, Palm Bay, El Monte, Carlsbad, North Charleston, Temecula, Clovis, Springfield, Meridian, Westminster, Costa Mesa, High Point, Manchester, Pueblo, Lakeland, Pompano Beach, West Palm Beach, Antioch, Everett, Downey, Lowell, Centennial, Elgin, Richmond, Peoria, Broken Arrow, Miami Gardens, Billings, Jurupa Valley, Sandy Springs, Gresham, Lewisville, Hillsboro, Ventura, Greeley, Inglewood, Waterbury, League City, Santa Maria, Tyler, Davie, Lakewood, Daly City, Boulder, Allen, West Covina, Sparks, Wichita Falls, Green Bay, San Mateo, Norwalk, Rialto, Las Cruces, Chico, El Cajon, Burbank, South Bend, Renton, Vista, Davenport, Edinburg, Tuscaloosa, Carmel, Spokane Valley, San Angelo, Vacaville, Clinton, Bend, Woodbridge.

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ASTM A312, A213 TP 304L Stainless Steel Tube Specification

Specification	Details
Material Grade	Stainless Steel 304L
UNS Number	UNS S30403
WERKSTOFF	1.4306
EN Grade	EN 10216-5 1.4307 Tube
ASTM Standards	ASTM A213, ASTM A249, ASTM A269
ASME Standards	ASME SA213, SA249, SA269
JIS Standard	JIS G3463 SUS 304L Stainless Steel Tube
Manufacturing	Seamless, Welded, ERW, Cold Drawn
Surface Finish	Annealed, Pickled, Bright Annealed, Polished
Outer Diameter	6 mm to 219 mm
Wall Thickness	0.5 mm to 20 mm
Length	Random, Double Random, Cut Length

UNS S30403 Tubes Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
304l	0.035 max	2 max	0.75 max	0.040 max	0.030 max	18 – 20	–	8 – 13	–

TP304l Stainless Steel Tubes Equivalent Grades

STANDARD	UNS	WERKSTOFF NR.	JIS	AFNOR	BS	GOST	EN
SS 304L	S30403	1.4306/1.4307	SUS 304L	Z3CN18‐10	304S11	03Х18Н11	X2CrNi18-9 / X2CrNi19-11

DIN 1.4301 Stainless Steel TP304L Tube Mechanical Properties Table

Material	Temperure	Heat	Tensile Properties	Elongational %, Min	Yield Properties
	Min.	Treatment	Ksi (MPa), Min.		Ksi (MPa), Min.
	º F(º C)
TP304L	1900 (1040)	Solution	70(485)	35	25(170)

Applications of Stainless Steel 304L Tubes

Because of their excellent corrosion resistance and fabrication characteristics, Stainless Steel 304L Tubes are widely used in:

Chemical Processing Plants
Oil & Gas Industries
Petrochemical Plants
Power Generation
Heat Exchangers
Boilers
Condensers
Pharmaceutical Equipment
Food Processing Industry
Dairy Plants
Beverage Industry
Water Treatment Plants
Marine Engineering
Pulp & Paper Industry
Fertilizer Plants
Instrumentation Systems
Hydraulic Systems
Aerospace Components

Stainless Steel 304L Tube Size Chart

NB Sizes	Schedule 5	Schedule 10	Schedule 40	Schedule 80	Schedule 160
1/4″	✔	✔	✔	✔
1/8″	✔	✔	✔	✔
3/8″	✔	✔	✔	✔
3/4″	✔	✔	✔	✔	✔
1/2″	✔	✔	✔	✔	✔
1″	✔	✔	✔	✔	✔
2″	✔	✔	✔	✔	✔
1 1/4″	✔	✔	✔	✔	✔
3″	✔	✔	✔	✔	✔
1 1/2″	✔	✔	✔	✔	✔
5″	✔	✔	✔	✔
2 1/2″	✔	✔	✔	✔	✔
4″	✔	✔	✔	✔	✔
6″	✔	✔	✔	✔

Wall	Sizes ( O.D.)
.010	1/16″ , 1/8″ , 3/16″
.020	1/16″ , 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″
.012	1/8″
.016	1/8″ , 3/16″
.028	1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ , 1/2″ , 3/4″ , 1″ , 1 1/2″ , 2″
.035	1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ , 7/16″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 2″ , 2 1/4″
.049	3/16″ , 1/4″ , 5/16″ , 3/8″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/8″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 2″ , 2 1/4″
.065	1/4″ , 5/16″ , 3/8″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 1 3/4″ , 2″ , 2 1/2″ , 3″
.083	1/4″ , 3/8″ , 1/2″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 1 7/8″ , 2″ , 2 1/2″ ,3″
.095	1/2″ , 5/8″ , 1″ , 1 1/4″ , 1 1/2″ , 2″
.109	1/2″ , 3/4″ , 1″ , 1 1/4″ , 1 1/2″ , 2″
.120	1/2″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ , 2 1/4″ , 2 1/2″ , 3″
.125	3/4″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ , 3″ , 3 1/4″
.134	1″
.250	3″
.375	3 1/2″

Tolerance of UNS S30403 SS Tube

NPS	Stainless Steel 304 Tube OD Tolerance
	+		–
	inch	mm	inch	mm
1/8~1 1 /2 > 1 1 /2~4 > 4~8 > 8~18 > 18~26 > 26~34 > 34~48	1/64(0.015) 1/32(0.031) 1/16(0.062) 3/32(0.093) 1/8(0.125) 5/32(0.156) 3/16(0.187)	0.4 0.8 1.6 2.4 3.2 4.0 4.8	1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031) 1/32(0.031)	0.8 0.8 0.8 0.8 0.8 0.8 0.8

Stainless Steel 304l Seamless Round Tubing Dimension Chart

Size OD, Inches	BW Ga.	Wall Dec-In.	ID	Weight Lbs/Ft.
1/8	22	0.028	0.069	0.0290
1/8	20	0.035	0.055	0.0336
3/16	22	0.028	0.131	0.0478
1/4	25	0.020	0.210	0.0491
	22	0.028	0.194	0.0664
	21	0.032	0.187	0.0745
	20	0.035	0.180	0.0804
	18	0.049	0.152	0.1052
	16	0.065	0.120	0.1284
5/16	20	0.035	0.242	0.1039
	18	0.049	0.214	0.1382
	16	0.065	0.182	0.1722
3/8	22	0.028	0.319	0.1038
	20	0.035	0.305	0.1271
	18	0.049	0.277	0.1706
	16	0.065	0.245	0.2152
7/16	18	0.049	0.340	0.2036
1/2	25	0.020	0.460	0.1025
	20	0.035	0.430	0.1738
	18	0.049	0.402	0.2360
	16	0.065	0.370	0.3020
5/8	20	0.035	0.555	0.2205
	18	0.049	0.527	0.3014
	16	0.065	0.495	0.3888
3/4	20	0.035	0.680	0.2673
	18	0.049	0.652	0.3668
	16	0.065	0.620	0.4755
	14	0.083	0.584	0.5913
7/8	18	0.049	0.777	0.4323
	16	0.065	0.745	0.5623
	11	0.120	0.635	0.9676
1	20	0.035	0.930	0.3607
	18	0.049	0.902	0.4977
	16	0.065	0.870	0.6491
	14	0.083	0.834	0.8129
	11	0.120	0.760	1.1278
1-1/4	11	0.120	1.010	1.4480

304L Stainless Steel Welded Tubes Wall Thickness

NPS	Stainless Steel 304 / 304L Tube Tolerance, %
NPS	+	–
1/8-2 1 /2	20.0	12.5
3~18, t/D≤ 5%	22.5	12.5
3~18, t/D> 5%	15.0	12.5
≥ 20, welded	17.5	12.5
≥ 20, seamless, t/D≤ 5%	22.5	12.5
≥ 20, seamless, t/D> 5%	15.0	12.5

ASTM A269 304L Tube Pressure Rating

OD inches	Ave. Wall inches	Min Yield Strength (PSI)	Min Tensile Strength (PSI)	*Theoretical Burst Pressure (PSI)**	Working Pressure (PSI) 25% of Burst	Theoretical Yield Point (PSI)**	Collapse Pressure * (PSI)**
0.250	0.020	30,000	75,000	14,286	3,571	5,714	4,416
0.250	0.028	30,000	75,000	21,649	5,412	8,660	5,967
0.250	0.035	30,000	75,000	29,167	7,292	11,667	7,224
0.250	0.049	30,000	75,000	48,355	12,089	19,342	9,455
0.250	0.065	30,000	75,000	81,250	20,313	32,500	11,544
0.375	0.020	30,000	75,000	8,955	2,239	3,582	3,029
0.375	0.028	30,000	75,000	13,166	3,292	5,266	4,145
0.375	0.035	30,000	75,000	17,213	4,303	6,885	5,077
0.375	0.049	30,000	75,000	26,534	6,634	10,614	6,816
0.375	0.065	30,000	75,000	39,796	9,949	15,918	8,597
0.500	0.020	30,000	75,000	6,522	1,630	2,609	2,304
0.500	0.028	30,000	75,000	9,459	2,365	3,784	3,172
0.500	0.035	30,000	75,000	12,209	3,052	4,884	3,906
0.500	0.049	30,000	75,000	18,284	4,571	7,313	5,304
0.500	0.065	30,000	75,000	26,351	6,588	10,541	6,786
0.500	0.083	30,000	75,000	37,275	9,319	14,910	8,307
0.625	0.020	30,000	75,000	5,128	1,282	2,051	1,859
0.625	0.028	30,000	75,000	7,381	1,845	2,953	2,568
0.625	0.035	30,000	75,000	9,459	2,365	3,784	3,172
0.625	0.049	30,000	75,000	13,947	3,487	5,579	4,335
0.625	0.065	30,000	75,000	19,697	4,924	7,879	5,591
0.625	0.083	30,000	75,000	27,124	6,781	10,850	6,910
0.625	0.095	30,000	75,000	32,759	8,190	13,103	7,734
0.625	0.109	30,000	75,000	40,172	10,043	16,069	8,639
0.750	0.028	30,000	75,000	6,052	1,513	2,421	2,156
0.750	0.035	30,000	75,000	7,721	1,930	3,088	2,669
0.750	0.049	30,000	75,000	11,273	2,818	4,509	3,664
0.750	0.065	30,000	75,000	15,726	3,931	6,290	4,749
0.750	0.083	30,000	75,000	21,318	5,330	8,527	5,905
0.750	0.095	30,000	75,000	25,446	6,362	10,179	6,637
0.750	0.109	30,000	75,000	30,733	7,683	12,293	7,453
0.750	0.120	30,000	75,000	35,294	8,824	14,118	8,064
0.875	0.020	30,000	75,000	3,593	898	1,437	1,340
0.875	0.028	30,000	75,000	5,128	1,282	2,051	1,859
0.875	0.035	30,000	75,000	6,522	1,630	2,609	2,304
0.875	0.049	30,000	75,000	9,459	2,365	3,784	3,172
0.875	0.065	30,000	75,000	13,087	3,272	5,235	4,126
0.875	0.083	30,000	75,000	17,560	4,390	7,024	5,152
0.875	0.095	30,000	75,000	20,803	5,201	8,321	5,807
0.875	0.109	30,000	75,000	24,886	6,221	9,954	6,543
0.875	0.120	30,000	75,000	28,346	7,087	11,339	7,100
1.000	0.028	30,000	75,000	4,449	1,112	1,780	1,633
1.000	0.035	30,000	75,000	5,645	1,411	2,258	2,027
1.000	0.049	30,000	75,000	8,149	2,037	3,259	2,796
1.000	0.065	30,000	75,000	11,207	2,802	4,483	3,647
1.000	0.083	30,000	75,000	14,928	3,732	5,971	4,567
1.000	0.095	30,000	75,000	17,593	4,398	7,037	5,159
1.000	0.109	30,000	75,000	20,908	5,227	8,363	5,827
1.000	0.120	30,000	75,000	23,684	5,921	9,474	6,336
1.000	0.134	30,000	75,000	27,459	6,865	10,984	6,963
1.250	0.035	30,000	75,000	4,449	1,112	1,780	1,633
1.250	0.049	30,000	75,000	6,380	1,595	2,552	2,260
1.250	0.065	30,000	75,000	8,705	2,176	3,482	2,958
1.250	0.083	30,000	75,000	11,485	2,871	4,594	3,719
1.250	0.095	30,000	75,000	13,443	3,361	5,377	4,213
1.250	0.109	30,000	75,000	15,843	3,961	6,337	4,776
1.250	0.120	30,000	75,000	17,822	4,455	7,129	5,207
1.250	0.134	30,000	75,000	20,468	5,117	8,187	5,742
1.500	0.035	30,000	75,000	3,671	918	1,469	1,367
1.500	0.049	30,000	75,000	5,243	1,311	2,097	1,896
1.500	0.065	30,000	75,000	7,117	1,779	2,847	2,487
1.500	0.083	30,000	75,000	9,333	2,333	3,733	3,136
1.500	0.095	30,000	75,000	10,878	2,719	4,351	3,559
1.500	0.109	30,000	75,000	12,754	3,188	5,101	4,043
1.500	0.120	30,000	75,000	14,286	3,571	5,714	4,416
1.500	0.134	30,000	75,000	16,315	4,079	6,526	4,881
1.500	0.148	30,000	75,000	18,439	4,610	7,375	5,336
1.750	0.035	30,000	75,000	3,125	781	1,250	1,176
1.750	0.049	30,000	75,000	3,864	966	1,546	1,434
1.750	0.065	30,000	75,000	6,019	1,505	2,407	2,146
1.750	0.083	30,000	75,000	7,860	1,965	3,144	2,711
1.750	0.095	30,000	75,000	9,135	2,284	3,654	3,080
1.750	0.109	30,000	75,000	10,672	2,668	4,213	3,504
1.750	0.120	30,000	75,000	11,921	2,980	4,768	3,832
1.750	0.134	30,000	75,000	13,563	3,391	5,425	4,242
1.750	0.148	30,000	75,000	15,268	3,817	6,107	4,645
1.750	0.165	30,000	75,000	17,430	4,357	6,972	5,124
2.000	0.035	30,000	75,000	2,720	680	1,088	1,032
2.000	0.049	30,000	75,000	3,864	966	1,546	1,434
2.000	0.065	30,000	75,000	5,214	1,303	2,086	1,887
2.000	0.083	30,000	75,000	6,788	1,697	2,715	2,387
2.000	0.095	30,000	75,000	7,873	1,968	3,149	2,715
2.000	0.109	30,000	75,000	9,175	2,294	3,670	3,092
2.000	0.120	30,000	75,000	10,227	2,557	4,091	3,384
2.000	0.134	30,000	75,000	11,605	2,901	4,642	3,751
2.000	0.148	30,000	75,000	13,028	3,257	5,211	4,111
2.000	0.165	30,000	75,000	14,820	3,705	5,928	4,542

Related Stainless Steel Tubes Grades

Why Choose Us as Your SS 304L Tube Supplier?

Selecting the right supplier directly impacts product performance and project reliability. We focus on delivering tubing that meets international standards and customer specifications.

Our advantages include:

Large ready stock for fast delivery
Competitive pricing
Worldwide export capability
Strict quality control
Customized lengths and finishes
Experienced technical support
Complete documentation and certifications
Reliable packaging for safe transportation
Quick response to RFQs
Support for bulk and project orders

Our commitment to quality, timely delivery, and customer satisfaction has made us a preferred partner for industrial buyers across global markets.

Equivalent Grades for Alloy 825 Seamless and Welded Tubes

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN	OR
Equivalent	2.4858	N08825	NCF 825	NA 16	ЭП703	NFE30C20DUM	NiCr21Mo	XH38BT

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