TRILOK STEEL INDUSTRIES is one of oldest MIL-T-4973 Tube supplier, the most versatile and widely used stainless steels in Aerospace Vehicle Hydraulic System.As well we are known supplier and manufacturer of MIL-T-4973 Tube. We stock and distribute a large and diverse inventory of MIL-T-4973 TP316L Seamless Tube, MIL-T-4973 TP304L Drawn Tube and MIL-T-4973 TP321 Welded Tube from industry-leading and widely accepted manufacturers who meet or exceed the stringent technical requirements. MIL-T-4973 Tubing is Intended for use in high pressure hydraulic and pneumatic systems where corrosion and heat resistant MIL-T-4973 Tube suitable for use in temperatures to 1200°F, when stresses are low.
MISC SPEC | GRADE OR PROCESS | DESCRIPTION |
MIL-T-4973 | 304 | TUBING, STEEL, CORROSION-RESISTANT (S30400), AEROSPACE VEHICLE HYDRAULIC SYSTEM 1/8 HARD CONDITION |
Attribute | Value |
---|---|
Specifications | AMS-T-4973, MIL-T-4973, AMS 5566 |
AMS Number | AMS T 4973 |
MIL-T-4973 Cross-sectional Shape Style | Plain round |
MIL-T-4973 Tube Wall Thickness | 0.035 inches |
MIL-T-4973 Tube First End Style: | Plain |
MIL-T-4973 Tube Diameter | 0.500 inches |
MIL-T-4973 Alloy | 304 |
MIL-T-4973 Type | Stainless Steel |
MIL-T-4973 Maximum Operating Temp | 800.0 deg fahrenheit |
MIL-T-4973 Tube Maximum Operating Pressure | 3000.0 pounds per square inch |
MIL-T-4973 Tube Surface Condition And Location | Outside polished |
MIL-T-4973 Tube Measuring Method And Length | 144.000 inches specific |
MIL-T-4973 Tube Special Features | Aerospace vehicle hydraulic systems |
MIL-T-4973 Cross Reference Spec | MIL-T-4973D |
Misc./Shape | Tubing |
MIL-T-4973 Specifications
MIL-T-4973 304 Seamless Stainless Tube
MIL-T-8504 Corrosion Resistant Tube
UNS S30400 Alloy 30304 MIL-T-4973
MIL-T-4973 Tubes are finished in accordance with customer needs regarding dimensional and wall thickness specifications as well as heat treatment for more demanding applications. In general MIL-T-4973 TP304 stainless steel seamless tube and MIL-T-4973 TP304 stainless steel seamless tube manufactured according to current standards.
Tubing TYPE | NB SIZES | SCH 5 | SCH 10 | SCH 40 | SCH 80 | SCH 160 |
---|---|---|---|---|---|---|
TP 304 Seamless Stainless Steel Tubing |
1/8″
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TP 304 Seamless Stainless Steel Tubing |
1/4″
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TP 304 Seamless Stainless Steel Tubing |
3/8″
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TP 304 Seamless Stainless Steel Tubing |
1/2″
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TP 304 Seamless Stainless Steel Tubing |
3/4″
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TP 304 Seamless Stainless Steel Tubing |
1″
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TP 304 Seamless Stainless Steel Tubing |
1 1/4″
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TP 304 Seamless Stainless Steel Tubing |
1 1/2″
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TP 304 Seamless Stainless Steel Tubing |
2″
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TP 304 Seamless Stainless Steel Tubing |
2 1/2″
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TP 304 Seamless Stainless Steel Tubing |
3″
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TP 304 Seamless Stainless Steel Tubing |
4″
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TP 304 Seamless Stainless Steel Tubing |
5″
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TP 304 Seamless Stainless Steel Tubing |
6″
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NB SIZES | SCH 5 | SCH 10 | SCH 40 | SCH 80 | SCH 160 |
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1/8″
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1/4″
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3/8″
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1/2″
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3/4″
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1″
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1 1/4″
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1 1/2″
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2″
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2 1/2″
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3″
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4″
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5″
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6″
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TOP NUMBER: Wall Thickness in Inches
BOTTOM NUMBER: Weight Per Foot in Pound
Tube
SIZE
|
O.D. INCHES | 5S | 5 | 10S | 10 | 20 | 30 | 40S & STD. | 40 | 60 | 80S & E.H. | 80 | 100 | 120 | 140 | 160 | DBL. E.H. |
1/8 | .405 | .035 .1383 | .049 .1363 | .049 .1363 | .068 .2447 | .068 .2447 | .095 .3145 | .095 .3145 | |||||||||
1/4 | .540 | .049 .2570 | .065 .3297 | .065 .3297 | .088 .4248 | .088 .4248 | .119 .5351 | .119 .5351 | |||||||||
3/8 | .675 | .049 .3276 | .065 .4235 | .065 .4235 | .091 .5676 | .091 .5676 | .126 .7388 | .126 .7388 | |||||||||
1/2 | .840 | .065 .5383 | .065 .5380 | .083 .6710 | .083 .6710 | .109 .8510 | .109 .8510 | .147 1.088 | .147 1.088 | .187 1.304 | .294 1.714 | ||||||
3/4 | 1.050 | .065 .6838 | .065 .6838 | .083 .8572 | .083 .8572 | .113 1.131 | .113 1.131 | .154 1.474 | .154 1.474 | .218 1.937 | .308 2.441 | ||||||
1 | 1.315 | .065 .8678 | .065 .8678 | .109 1.404 | .109 1.404 | .133 1.679 | .133 1.679 | .179 2.172 | .179 2.172 | .250 2.844 | .358 3.659 | ||||||
1 1/4 | 1.660 | .065 1.107 | .065 1.107 | .109 1.806 | .109 1.806 | .140 2.273 | .140 2.273 | .191 2.997 | .191 2.997 | .250 3.765 | .382 5.214 | ||||||
1 1/2 | 1.900 | .065 1.274 | .065 1.274 | .109 2.085 | .109 2.085 | .145 2.718 | .145 2.718 | .200 3.631 | .200 3.631 | .281 4.859 | .400 6.408 | ||||||
2 | 2.375 | .065 1.604 | .065 1.604 | .109 2.638 | .109 2.638 | .154 3.653 | .154 3.653 | .218 5.022 | .218 5.022 | .344 7.462 | .436 9.029 | ||||||
2 1/2 | 2.875 | .083 2.475 | .083 2.475 | .120 3.531 | .120 3.531 | .203 5.793 | .203 5.793 | .276 7.661 | .276 7.661 | .375 10.01 | .552 13.70 | ||||||
3 | 3.500 | .083 3.029 | .083 3.029 | .120 4.332 | .120 4.332 | .216 7.576 | .216 7.576 | .300 10.25 | .300 10.25 | .438 14.32 | .600 18.58 | ||||||
3 1/2 | 4.000 | .083 3.472 | .083 3.472 | .120 4.973 | .120 4.973 | .226 9.109 | .226 9.109 | .318 12.51 | .318 12.51 | .636 22.85 | |||||||
4 | 4.500 | .083 3.915 | .083 3.915 | .120 5.613 | .120 5.613 | .237 10.79 | .237 10.79 | .337 14.98 | .337 14.98 | .438 19.00 | .531 22.51 | .674 27.54 | |||||
4 1/2 | 5.000 | .247 12.54 | .355 17.60 | ||||||||||||||
5 | 5.563 | .109 6.349 | .109 6.349 | .134 7.770 | .134 7.770 | .258 14.62 | .258 14.62 | .375 20.78 | .375 20.78 | .500 20.78 | .625 32.96 | .750 38.55 | |||||
6 | 6.625 | .109 7.585 | .109 7.585 | .134 9.289 | .134 9.289 | .280 18.97 | .280 18.97 | .432 28.57 | .432 28.57 | .562 36.39 | .719 43.35 | .864 53.16 | |||||
Tube
SIZE
|
O.D. INCHES | 5S | 5 | 10S | 10 | 20 | 30 | 40S & STD. | 40 | 60 | 80S & E.H. | 80 | 100 | 120 | 140 | 160 | DBL. E.H. |
7 | 7.625 | .301 23.54 | .500 38.04 | .875 63.08 | |||||||||||||
8 | 8.625 | .109 9.914 | .109 9.914 | .148 13.40 | .148 13.40 | .250 22.36 | .277 24.70 | .322 28.55 | .322 28.55 | .406 35.64 | .500 43.39 | .500 43.39 | .594 50.95 | .719 60.71 | .812 67.76 | .906 74.69 | .875 72.42 |
9 | 9.625 | .342 33.91 | .500 48.73 | ||||||||||||||
10 | 10.75 | .134 15.19 | .134 15.19 | .165 18.70 | .165 18.70 | .250 28.04 | .307 34.24 | .365 40.48 | .365 40.48 | .500 54.74 | .500 54.74 | .594 64.43 | .719 77.03 | .844 82.29 | 1.000 104.1 | 1.125 115.6 | 1.000 104.1 |
11 | 11.75 | .375 45.56 | .500 60.08 | ||||||||||||||
12 | 12.75 | .156 21.07 | .165 22.18 | .180 24.16 | .180 24.16 | .250 33.38 | .330 43.77 | .375 49.56 | .406 53.52 | .562 73.15 | .500 65.42 | .688 88.63 | .844 107.3 | 1.000 125.5 | 1.125 136.7 | 1.312 160.3 | 1.000 125.5 |
14 | 14.00 | .156 23.07 | .188 27.73 | .250 36.71 | .312 45.61 | .375 54.57 | .375 54.57 | .438 63.44 | .594 85.05 | .500 72.09 | .750 106.1 | .938 130.9 | 1.094 150.8 | 1.250 170.2 | 1.406 189.1 | ||
16 | 16.00 | .165 27.90 | .188 31.75 | .250 42.05 | .312 52.27 | .375 62.58 | .375 62.58 | .500 82.77 | .656 107.5 | .500 82.77 | .844 136.6 | 1.031 164.8 | 1.219 192.4 | 1.438 223.6 | 1.594 245.3 | ||
18 | 18.00 | 165 31.43 | .188 35.76 | .250 47.39 | .312 58.94 | .438 82.15 | .375 70.59 | .562 104.7 | 750 138.2 | .500 93.45 | .938 170.9 | 1.156 208.0 | 1.375 244.1 | 1.562 274.2 | 1.781 308.5 | ||
20 | 20.00 | .188 39.78 | .218 46.05 | .250 52.73 | .375 78.60 | .500 104.1 | .375 78.60 | .594 123.1 | .812 166.4 | .500 104.1 | 1.031 208.9 | 1.281 256.1 | 1.500 296.4 | 1.750 341.1 | 1.969 379.2 | ||
24 | 24.00 | .218 55.37 | .250 63.41 | .250 63.41 | .375 94.42 | .562 140.7 | .375 94.42 | .688 171.3 | .969 238.4 | .500 125.5 | 1.219 296.8 | 1.531 367.4 | 1.812 429.4 | 2.062 483.1 | 2.344 542.1 | ||
26 | 26.00 | .312 85.60 | .500 136.17 | .375 102.63 | .500 136.17 | ||||||||||||
28 | 28.00 | .312 92.26 | .500 146.85 | .625 182.73 | .375 110.64 | ||||||||||||
30 | 30.00 | .250 79.43 | .312 98.93 | .312 98.93 | .500 157.53 | .625 196.08 | .375 118.65 | .500 157.53 | |||||||||
32 | 32.00 | .312 105.59 | .500 168.21 | .625 209.43 | .375 126.66 | .688 230.08 | .500 168.21 | ||||||||||
34 | 34.00 | .312 112.25 | .500 178.89 | .625 222.78 | .375 134.67 | .688 244.77 | |||||||||||
36 | 36.00 | .312 118.92 | .500 189.57 | .625 236.13 | .375 142.68 | .750 282.35 | .500 189.57 |
NPS Designator | Permissible Variations in Outside Diameter | |
---|---|---|
Over In. | Under In. | |
1/8 to 1-1/2, incl | 1/64 (0.015) | 1/32 (0.031) |
Over 1-1/2 to 4, incl | 1/32 (0.031) | 1/32 (0.031) |
Over 4 to 8, incl | 1/16 (0.062) | 1/32 (0.031) |
Over 8 to 18, incl | 3/23 (0.093) | 1/32 (0.031) |
Product | NPS Designator | Outside Diameter in. | Schedule 5S in. | Schedule 10S in. | Schedule 40S in. | Schedule 80S in. |
---|---|---|---|---|---|---|
MIL-T-4973 Tube | 1/4 | 0.540 | 0.065 | 0.088 | 0.119 | |
MIL-T-4973 Tube | 3/8 | 0.675 | 0.065 | 0.091 | 0.126 | |
MIL-T-4973 Tube | 1/2 | 0.840 | 0.065 | 0.083 | 0.109 | 0.147 |
MIL-T-4973 Tube | 3/4 | 1.050 | 0.065 | 0.083 | 0.113 | 0.154 |
MIL-T-4973 Tube | 1.0 | 1.315 | 0.065 | 0.109 | 0.133 | 0.179 |
MIL-T-4973 Tube | 1 1/4 | 1.660 | 0.065 | 0.109 | 0.140 | 0.191 |
MIL-T-4973 Tube | 1 1/2 | 1.900 | 0.065 | 0.109 | 0.145 | 0.200 |
MIL-T-4973 Tube | 2 | 2.375 | 0.065 | 0.109 | 0.154 | 0.218 |
MIL-T-4973 Tube | 2 1/2 | 2.875 | 0.083 | 0.120 | 0.203 | 0.276 |
MIL-T-4973 Tube | 3 | 3.500 | 0.083 | 0.120 | 0.216 | 0.300 |
MIL-T-4973 Tube | 3 1/2 | 4.000 | 0.083 | 0.120 | 0.226 | 0.318 |
MIL-T-4973 Tube | 4 | 4.500 | 0.083 | 0.120 | 0.237 | 0.337 |
MIL-T-4973 Tube | 5 | 5.563 | 0.109 | 0.134 | 0.258 | 0.375 |
MIL-T-4973 Tube | 6 | 6.625 | 0.109 | 0.134 | 0.280 | 0.432 |
MIL-T-4973 Tube | 8 | 8.625 | 0.109 | 0.148 | 0.322 | 0.500 |
MIL-T-4973 Tube | 10 | 10.750 | 0.134 | 0.165 | 0.365 | 0.500 |
MIL-T-4973 Tube | 12 | 12.750 | 0.156 | 0.180 | 0.375 | 0.500 |
NPS | MIL-T-4973 Tube Tolerance, % | |
+ | – | |
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 |
MIL-T-4973 Chemical Composition
The below table shows the chemical composition of the used for MIL-T-4973 Seamless Stainless Steel Tubing:
Weight % | Ni | Cr | Mn | C | Si | Mo | S | P | Cu |
---|---|---|---|---|---|---|---|---|---|
Minimum | 8.00 | 18.00 | |||||||
Maximum | 10.50 | 20.00 | 2.00 | .08 | 1.00 | .75 | .03 | .045 | .75 |
Ultimate | Yield | Elongation % |
---|---|---|
KSI | PSI | |
105-140 | 75-110 min | 20% |
MIL-T-4973 TP304 Stainless Steel Tube | MIL-T-4973 TP304 Stainless teel Tube |
MIL-T-4973 stainless steel Tube | MIL-T-4973 Tube |
MIL-T-4973 TP304L Stainless Steel Tube | MIL-T-4973 TP 304 Cold Drawn Tube |
MIL-T-4973 Seamless Stainless Steel Tube | MIL-T-4973 TP 304 Tube |
MIL-T-4973 TP304 Welded Stainless Steel Tube | MIL-T-4973 Tube |
304 MIL-T-4973 Stainless Steel Round Tube | MIL-T-4973 Grade 304 Tube |
MIL-T-4973 TP304 Tube | MIL-T-4973 Gr. 304 Tube |
MIL-T-4973 Corrosion Resistant Tube | MIL-T-4973 Stainless Steel Seamless Tubing |
MIL-T-4973 TP304 Stainless Steel Rectangular Tube | Welded stainless steel tube MIL-T-4973 |
MIL-T-4973 1/8 Hard Stainless steel tube | MIL-T-4973 Aerospace tubing |
MIL-T-4973 Tubing | MIL-T-4973 Steel tubing |
AMS-T-4973 Seamless Tubes | SAE MIL-T-4973 Tube |
Product Name: MIL-T-4973 TP 304 Seamless Stainless Steel Tubing
Manufacturer Test Certificate
IBR Test Certificate (Form III-D)
Laboratory Test Certificate from Govt. Approved Lab.
Under Third Party Inspection with Excise Gate Pass to avail
Modvat benefit.
Internal and external protection
We perform sandblasting according to SA 2,5 and protect the Tube surfaces from rust using a primer such as clear varnish, epoxy or zinc phosphate, etc. Upon request, we provide Tube protection by means of polyethylene, polypropylene, fibre-cement casing, or with bitumen. All kinds of paint coatings and galvanisation are also available.
These MIL-T-4973 Stainless Steel Tube grades are sold to a wide range of industries/markets, due to their overall corrosion resistance and good machinability:
MIL-T-4973 tubing shall be properly separated by size’(outside ~~~me~~~, and wall thickness. The ends of MIL-T-4973 tubing shall be sealed exclude dirt and dust.
MIL-T-4973 Tubing Packaging for shipment. Material shal1 be packaged for shipment in accordance with the methods prescribed in MIL-STD-163.
MIL-T-4973 Marking of shipments. Interior packages and exterior shfpping containers shal1 be marked in accordance with MIL-STO-129. The identification shall include the following information listed in the order shown: Stock No. or other identification number as specified in the purchase document TUBING, STEEL, CORROSION-RESISjANT [304), AEROSPACE VEHICLE HYDRAULIC SYSTEM, 1/8 HARD ‘CONDITION MIL-T-4973 Size (diameter), Wall thickness ,Heat No., Type,Class,Quantity contained,Name of manufacturer,Name of contractor (if different from manufacturer),Contract or Order No.
Pipe Specifications
ASTM Standards