304 Stainless Aerospace Tubing

304 and 304L are austenitic alloys. These alloys are the most familiar and frequently used alloys in the stainless steel family. The L in 304L refers to a lower carbon content to allow for a greater corrosion protection when welding. Material produced to AMS-T-6845 is suitable for use in high pressure hydraulic systems.

304/304L TUBING TO MIL-T-8504

304 and 304L are austenitic alloys. These alloys are the most familiar and frequently used alloys in the stainless steel family. The L in 304L refers to a lower carbon content to allow for a greater corrosion protection when welding.

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Manufacture Method
OD
Specification
Wall

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SKU Description DFARS Manufacture Method OD Wall Specification
Sku: 35655 Description: SMLS CD 304 8504 1/16 OD X .010 WA DFARS: Yes Manufacture Method: SEAMLESS & DRAWN OD: 0.0625 Wall: 0.0100 Specification: MIL-T-8504 AMS5567
Sku: 35659 Description: SMLS CD 304 8504 1/16 X .016 WA DFARS: No Manufacture Method: SEAMLESS & DRAWN OD: 0.0625 Wall: 0.0160 Specification: MIL-T-8504 AMS5567
Sku: 35680 Description: SMLS CD 304 8504 1/8 OD X .012 WA DFARS: No Manufacture Method: SEAMLESS & DRAWN OD: 0.1250 Wall: 0.0120 Specification: MIL-T-8504 AMS5567
Sku: 35686 Description: SMLS CD 304 8504 1/8 OD X .016 WA DFARS: Yes Manufacture Method: SEAMLESS & DRAWN OD: 0.1250 Wall: 0.0160 Specification: MIL-T-8504 AMS5567
Sku: 35692 Description: SMLS CD 304 8504 1/8 X .020 WA DFARS: No Manufacture Method: SEAMLESS & DRAWN OD: 0.1250 Wall: 0.0200 Specification: MIL-T-8504 AMS5567
Sku: 35708 Description: SMLS CD 304 6845 1/8 HD 1/8 X .028W DFARS: No Manufacture Method: SEAMLESS & DRAWN OD: 0.1250 Wall: 0.0280 Specification: MIL-T-6845 AMS-T-6845
Sku: 35703 Description: SMLS CD 304 8504 1/8 OD X .028 WA DFARS: Yes Manufacture Method: SEAMLESS & DRAWN OD: 0.1250 Wall: 0.0280 Specification: MIL-T-8504 AMS5567
Sku: 35715 Description: SMLS CD 304 8504 1/8 OD X .035 WA DFARS: Yes Manufacture Method: SEAMLESS & DRAWN OD: 0.1250 Wall: 0.0350 Specification: MIL-T-8504 AMS5567
Sku: 35733 Description: SMLS CD 304 8504 5/32 OD X .016 WA DFARS: Yes Manufacture Method: SEAMLESS & DRAWN OD: 0.1563 Wall: 0.0160 Specification: MIL-T-8504 AMS5567
Sku: 35732 Description: SMLS CD 304 8504 5/32 OD X .010 WA DFARS: No Manufacture Method: SEAMLESS & DRAWN OD: 0.1563 Wall: 0.0100 Specification: MIL-T-8504 AMS5567

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304 Stock Size Range:

OD: .250"- 5"
Walls: .006"- .250"

Tempers: 1/8 hard

Specifications: AMS-T-6845, MIL-T-6845, AMS 5566

Typical Chemical Composition %
Weight %NiCrMnCSiMoSPCu
Minimum 8.00 18.00
Maximum 10.50 20.00 2.00 .08 1.00 .75 .03 .045 .75
Typical Mechanical Properties (.250" OD and over)
UltimateYieldElongation %
KSI PSI
105-140 75-110 min 20%


304/304L Stock Size Range:

OD: .032"- 5"

Walls: .006"- .250"

Tempers: Annealed

Specifications: MILT 8504, AMS-T-8506, AMS 5560, AMS5567

Typical Chemical Composition %
Weight %NiCrMnCSiMoSPCu
Minimum 8.00 18.00
Maximum 12.00 20.00 2.00 .08 1.00 .50 .03 .045 .75
Typical Mechanical Properties
Nominal ODNominal WallUltimate KSIYield KSIElongation in 2"
.187 and less .016 and less 115 max 30 30
Over .016 75-100 30 40
Over .187 .012 and 110 max 30 37
To .500 incl Less
Over .012 75-100 30 40
Over .500 All 75-100 30 40

ASTM A269 for Stainless Steel Tubing

The ASTM A269 specification as outlined by the American Society for Testing and Materials (ASTM) covers grades of stainless steel that are suitable for various applications involving hydraulics, high-pressure processes, high-temperature processes, and instrumentation systems. More generally, the ASTM A269 specification covers grades of nominal-wall-thickness, corrosion resistance and low- or high-temperature service for these steel products.

As with most specifications ASTM A269 lists the required dimensions, tolerances, mechanical properties, or testing results to remain compliant. In order to verify ASTM A269 compliance, steel must pass a variety of tests including flaring tests, flange tests, hardness tests, and reverse flattening tests.

ASTM A269 Applications

It is always important to refer to the specific ASTM A269 standard document for comprehensive details and the exact requirements for stainless steel intended for your application. TW Metals stocks and ships a variety of ASTM A269 steel products for nearly any industry including but not limited to:

  • Chemical Processing
  • Petrochemicals/Oil & Gas
  • Food Processing
  • Pharmaceuticals
  • Extraction
  • And more…