High Pressure Hydraulic Stainless Steel Tubing Manufacturers, suppliers, and Exporters in India
Mcneil Instrument, a leading Manufacturer, supplier, and Exporter of stainless steel high pressure pipes, offers a wide range of material grades to meet various needs. With a maximum pressure capacity of 19000psi and adherence to ASTM, AISI, ASME, JIS, DIN, and other international standards, Mcneil Instrument ensures quality and reliability.
Our high pressure stainless steel pipes come in sizes ranging from ¼ inches to 1 inch, with options including 304, 304L, 316, and 316L grades. For ultra high pressure applications like water cannons used in metal cutting, Mcneil Instrument provides specialized tubing solutions. We offer diverse types such as high pressure stainless steel flexible tubing, suitable for dynamic systems and moving parts. All pipes are crafted seamlessly, with finishes tailored for aircraft industrial and other high-end applications. Mcneil Instrument also caters to specific needs with capillary tubes, hollow sections, and welded pressure piping.
Our high pressure hydraulic stainless steel tubing plays a crucial role in hydraulic systems, supporting lifts and jacks in various industries including earth moving and mining operations. From 3/8 inch tubing to larger diameters, Mcneil Instrument provides tubing in compliance with different standards, ensuring reliability and performance. With lengths of up to 13m and options for custom cuts, Mcneil Instrument offers comprehensive solutions for high pressure seamless tubing requirements.
Mcneil Instrument is a premier manufacturer, supplier, and exporter based in India, specializing in the production of medium and high pressure stainless steel flexible tubing. Our products are engineered to withstand pressures up to 20,000 psig (1378 bar) and are available in sizes ranging from 1/4 to 3/8 inches.
Stainless Steel High Pressure Pipe Specification
Buy from certified Mcneil Instrument High Pressure Stainless Steel Pipe suppliers and manufacturers for authentic pricing and superior quality.
- Standard lengths : 4-7 meters
- Custom: up to 16 meters
- Test and Certification: DIN EN 10204 3.1, ISO 17025
- Third Party Inspection: Yes
High Pressure Stainless Steel Pipe working pressures
Mcneil Instrument, a leading manufacturer and exporter, offers High Pressure Seamless Tubing in Stainless Steel grade 304 and 316 at the most competitive prices, originating from Mumbai, India.
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Manufacturer of pipes up 60k PSI (414MPa) working pressures
| Nominal OD† | OD Tolerance | ID Range | Pressure Rating* |
| 1/4″ | – 0.007″ / + 0.0″ | .079″ / .083″ | 60,000 psi |
| 3/8″ | – 0.010″ / +0.0″ | .121″ / .125″ | 60,000 psi |
| 9/16″ | – 0.011″ / + 0.0″ | .182″ / .187″ .245″ / .250″ |
60,000 psi 40,000 psi |
| 3/4″ | – 0.010″ / +0.0″ | .245″ / .250″ | 60,000 psi |
| 1″ | – 0.010″ / +0.0″ | .432″ / .437″ | 30,000 psi |
| Nominal OD† | OD Tolerance | ID | Pressure Rating* |
| 1/4″ | + 0.004″ / – 0.004″ | 3/32″ 1/16″ |
80,000 psi 114,000 psi |
| 3/8″ | + 0.004″ / – 0.004″ | 1/8″ 1/16 |
90,000 psi 150,000 psi |
| 9/16″ | + 0.004″ / – 0.004″ | 5/16″ 3/16″ |
60,000 psi 90,000 psi |
| Nominal OD† | OD Tolerance | ID Range | Pressure Rating* |
| 1/4″ | – 0.007″ / + 0.0″ | .104″ / .109″ | 20,000 psi |
| 3/8″ | – 0.010″ / + 0.0″ | .198″ / .203″ | 20,000 psi |
| 9/16″ | – 0.011″ / + 0.0″ | .307″ / .312″ .354″ / .359″ |
20,000 psi 15,000 psi |
| 3/4″ | – 0.010″ / +0.0″ | .432″ / .437″ .510″ / .515″ |
20,000 psi 15,000 psi |
| 1″ | – 0.010″ / +0.0″ | .557″ / .562″ .682″ / .687″ |
20,000 psi 15,000 psi |
Stainless Steel High Pressure Tubing Applications
Mcneil Instrument, a renowned manufacturer and exporter, specializes in producing Ultra High Pressure Stainless Steel Tubing in an array of grades such as 201, 304, 304L, 310, 316, 316L, 904L, 1.4319, 1.4301, 2205, and 2507.
| Manufacturer of | UNS | ASTM | EN steel no. | W.Nr. | AFNOR |
|---|---|---|---|---|---|
| SS 304 | S30400 | 304 | 1.4301 | 1.4301 | Z2CND18-09 |
| SS 316/ 316L | S31603/S31600 | 316L/316 | 1.4404/1.4401 | 1.4404 | Z2CND17-12 |
| Super Duplex 2507 | S32750 |
–
|
1.4410 |
–
|
–
|
| 254 SMO | S31254 | – | – | – | Z1CNDU20-18-06AZ |
High Pressure Stainless Steel Flexible Tubing sizes
| OD mm |
OD in. |
ID mm |
ID in. |
WT mm |
WT in. |
Working pressure
(stat.)1) bar |
Working pressure
(stat.) bar |
Weight kg/m |
|---|---|---|---|---|---|---|---|---|
|
6
|
–
|
2.2
|
–
|
1.90
|
3,120
|
5,710
|
0.195
|
|
|
6.35
|
1/4
|
2.39
|
3/32
|
1.98
|
0.0781
|
3,045
|
5,580
|
0.217
|
|
6.35
|
1/4
|
2.29
|
0.0902
|
2.03
|
0.0799
|
3,180
|
–
|
0.220
|
|
6.35
|
1/4
|
1.59
|
1/16
|
2.38
|
0.0938
|
4,300
|
7,890
|
0.237
|
|
9.52
|
3/8
|
3.20
|
1/8
|
3.16
|
0.1245
|
3,380
|
6,190
|
0.503
|
|
9.52
|
3/8
|
1.60
|
1/16
|
3.96
|
0.1560
|
5,530
|
10,140
|
0.551
|
|
14.00
|
–
|
8.00
|
–
|
3.00
|
–
|
2,330
|
–
|
0.826
|
|
14.00
|
–
|
5.00
|
–
|
4.50
|
–
|
3,200
|
–
|
1.070
|
|
14.30
|
9/16
|
8.00
|
5/16
|
3.15
|
0.1240
|
2,380
|
4,360
|
0.879
|
|
14.30
|
9/16
|
4.76
|
3/16
|
4.77
|
0.1878
|
3,390
|
6,210
|
1.138
|
|
19.05
|
3/4
|
1.80
|
–
|
8.63
|
–
|
–
|
12,00
|
2.251
|
|
30.00
|
–
|
10
|
–
|
10
|
–
|
–
|
6,250
|
5.008
|
1) Calculation basis:
K: Factor = OD/ID
K < 2: Calculation according to AD-regulation B10
K > 2: Calculation basis full plastic condition. Safety factor 0.45.
SS High Pressure Tube surface
The internal surfaces of Mcneil Instrument products are guaranteed to be devoid of any flaws, laps, or fissures exceeding a depth of 0.1 mm. Additionally, there shall be no more than 5 defects exceeding 0.05 mm in size per cross-section. Our standards adhere strictly to DIN ISO 8535-1, ensuring that defects of up to 0.02 mm are within acceptable limits.
High Pressure Seamless Tubing Mechanical properties
| Material | Heat | Temperure | Tensile Strength | Yield Strength | Elongation %, Min |
|---|---|---|---|---|---|
| Treatment | Min. | Ksi (MPa), Min. | Ksi (MPa), Min. | ||
| º F(º C) | |||||
| TP304 | Solution | 1900 (1040) | 75(515) | 30(205) | 35 |
| TP304L | Solution | 1900 (1040) | 70(485) | 25(170) | 35 |
| TP316 | Solution | 1900(1040) | 75(515) | 30(205) | 35 |
| TP316L | Solution | 1900(1040) | 70(485) | 25(170) | 35 |
| Super Duplex 2507 | 800-1,000 | 550 | 25 | ||
| 254 SMO 2) | 650 | 340 | 65 |
Stainless Steel High Pressure Tube Testing
Mcneil Instrument specializes in conducting comprehensive technological tests for stainless steel high-pressure tubes. Our services include dimensions examination, intergranular corrosion testing, tensile testing, eddy current testing, metallographic examination, hydrostatic testing, and bursting pressure testing. With capabilities to handle maximum internal pressures of up to 15,000 bars and fatigue strengths reaching 4,000 bars, Mcneil Instrument ensures thorough and reliable assessments for high-pressure tube performance.
Steel Tubing Tolerances
OD and ID: +/- 0.1 mm
WT: +/- 10%
Other tolerances can be offered on request.
| SIZE OD | NOMINAL WALL THICKNESS | OUTSIDE DIAMETER TOLERANCE | LENGTH TOLERANCE | WALL THICKNESS TOLERANCE | ||||
|---|---|---|---|---|---|---|---|---|
| (in) | (mm) | (in) | (mm) | (in) | (mm) | (in) | (mm) | (%) |
| ½ | 12.7 | 0.065 | 1.65 | +/-0.005 | +/-0.13 | +⅛, -0 | +3.18, -0 | +/-10.0% |
| ¾ | 19.1 | 0.065 | 1.65 | +/-0.005 | +/-0.13 | +⅛, -0 | +3.18, -0 | +/-10.0% |
| 1 | 25.4 | 0.065 | 1.65 | +/-0.005 | +/-0.13 | +⅛, -0 | +3.18, -0 | +/-10.0% |
| 1½ | 38.1 | 0.065 | 1.65 | +/-0.008 | +/-0.20 | +⅛, -0 | +3.18, -0 | +/-10.0% |
| 2 | 50.8 | 0.065 | 1.65 | +/-0.008 | +/-0.20 | +⅛, -0 | +3.18, -0 | +/-10.0% |
| 2½ | 63.5 | 0.065 | 1.65 | +/-0.010 | +/-0.25 | +⅛, -0 | +3.18, -0 | +/-10.0% |
| 3 | 76.2 | 0.065 | 1.65 | +/-0.010 | +/-0.25 | +⅛, -0 | +3.18, -0 | +/-10.0% |
| 4 | 101.6 | 0.083 | 2.11 | +/-0.015 | +/-0.38 | +⅛, -0 | +3.18, -0 | +/-10.0% |
| 6 | 152.4 | 0.109 | 2.77 | +/-0.030 | +/-0.76 | +1, -0 | +25.4, -0 | +/-10.0% |
Chemical Composition of High Pressure Stainless Steel Pipe & Tubing
| Chemical Composition % | Cr | Ni | C | Mg | Mo | Si | P | S |
|---|---|---|---|---|---|---|---|---|
| 304 (UNS S30400) | 18.0 – 20.0 | 8.0 – 11.0 | 0.08 (max) | 2.00 | -. | 1.00 | 0.045 (max) | .030 (max) |
| 316/L (UNS S31600 / S31603) | 16.0 – 18.0 | 10.0 – 14.0 | 0.03 (max) | 2.00 | 2.0 – 3.0 | 1.00 | 0.045 (max) | .030 (max) |
| 317L (UNS S31703) | 18.0 – 20.0 | 11.0 – 15.0 | .035 (max) | 2.00 | 3.0 – 4.0 | 1.00 | 0.045 (max) | .030 (max) |
High Pressure Stainless Steel Pipe Equivalent
| UNS NO | DIN/WERKSTOFF |
|---|---|
| S30400 | 1.4301 |
| S30409 | – |
| S30403 | 1.4306 |
| S31008 | 1.4845 |
| S31600 | 1.4436 |
| S31609 | – |
| S31635 | 1.4571 |
| S31603 | 1.4435 |
| S31603 | 1.4404 |
| S31703 | 1.4438 |
| S32100 | 1.4541 |
| S32109 | – |
| S34700 | 1.4550 |