304 / 304L Stainless Steel Pipe

What Are 304/304L Stainless Steel Pipes?

As the most common stainless steel alloy, 304/304L stainless steel is very versatile. This grade of austenitic stainless steel pipe demonstrates excellent machinability and is a good welding material with or without adding filler metals. It resists corrosion from a range of corrosive environments. These characteristics make 304/304L stainless steel pipes widely used.

What Industries Use 304/ 304L Stainless Steel Pipe?

These pipes are excellent for the following industries:

  • Machinery
  • Architectural
  • Chemical
  • Food and beverage
  • Cryogenic

Examples of 304/304L stainless steel applications include heat transfers, construction materials, chemical containers, kitchen equipment, and food processing equipment.

How Are 304 and 316 Stainless Steel Different? 

316 stainless steel has higher percentages of chromium, molybdenum and nickel, making it more resistant to chloride corrosion.

What Makes TW's 304/304L Stainless Steel Pipe Stand Out?

TW Metals supplies 304 and 304L stainless steel pipe that meets the following specifications:

  • ASTM
  • ASME
  • MIL-P

Additionally, much of our inventory meets the European standard Pressure Equipment Directive 97/23EC.

We stock a range of industry-standard stainless steel pipe sizes as well as hard-to-find sizes that only select suppliers keep in their inventory.

304/304L Stainless Steel Pipes for Your Requirements

TW Metals has locations worldwide that supply customers with 304 stainless steel pipes and other specialty metals. Learn how we can provide the metal products you need.

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Alloy Grade
Manufacture Method
OD
Pipe Size
Schedule
Specification

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SKU Description DFARS Manufacture Method Schedule Pipe Size Specification
Sku: 38394 Description: W 304/304L A-312 1/8 SCH 40 DFARS: Yes Manufacture Method: WELDED & DRAWN Schedule: 40 Pipe Size: 0.125 Specification: ASTM A312 ASME SA312
Sku: 38402 Description: W 304/304L A-312 1/4 SCH 40 DFARS: Yes Manufacture Method: WELDED & DRAWN Schedule: 40 Pipe Size: 0.25 Specification: ASTM A312 ASME SA312
Sku: 38401 Description: W 304/304L A-312 1/4 SCH 10 DFARS: Yes Manufacture Method: WELDED & DRAWN Schedule: 10 Pipe Size: 0.25 Specification: ASTM A312 ASME SA312
Sku: 38405 Description: SMLS 304/L A-312 1/4 SCH 40 DFARS: Yes Manufacture Method: SEAMLESS & DRAWN Schedule: 40 Pipe Size: 0.25 Specification: ASME SA312
Sku: 38412 Description: SMLS 304/L A-312 1/4 SCH 80 DFARS: Yes Manufacture Method: SEAMLESS & DRAWN Schedule: 80 Pipe Size: 0.25 Specification: ASME SA312
Sku: 38411 Description: W 304/304L A-312 1/4 SCH 80 DFARS: Yes Manufacture Method: WELDED & DRAWN Schedule: 80 Pipe Size: 0.25 Specification: ASTM A312 ASME SA312
Sku: 38418 Description: W 304/304L A-312 3/8 SCH 40 DFARS: Yes Manufacture Method: WELDED & DRAWN Schedule: 40 Pipe Size: 0.375 Specification: ASTM A312 ASME SA312
Sku: 38420 Description: SMLS 304/L A-312 3/8 SCH 40 DFARS: Yes Manufacture Method: SEAMLESS & DRAWN Schedule: 40 Pipe Size: 0.375 Specification: ASME SA312
Sku: 38429 Description: SMLS 304/L A-312 3/8 SCH 80 DFARS: Yes Manufacture Method: SEAMLESS & DRAWN Schedule: 80 Pipe Size: 0.375 Specification: ASME SA312
Sku: 38428 Description: W 304/304L A-312 3/8 SCH 80 DFARS: No Manufacture Method: WELDED & DRAWN Schedule: 80 Pipe Size: 0.375 Specification: ASTM A312 ASME SA312

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Stock Size Range and Specifications:

Welded product

Seamless product

MPS1/8" through 24"
NPS1/8" through 12"
Schedules5, 10, 10S, 20, 30, 40, 40S, 80, 80S
Schedules5, 10, 40, 80, 160, XXH
Specifications: ASTM A312, ASME SA312 Specifications: ASTM A312,ASME SA312

Corrosion tested to MIL-P-24691/3 or A262 Practice E

Typical Chemical Composition % (max values, unless noted)
Weight %CMnPSSiCrNi
304 .08 2.00 .045 .030 1.00 18.0-20.0 8.0-11.0
304L .035 2.00 .045 .030 1.00 18.0-20.0 8.0-13.0
Typical Mechanical Properties
GradeTensile
 Ultimate/MinYield/MinElongation/Min
  KSI MPA KSI MPA %
304 75 515 30 205 35
304L 70 485 25 170 35