304 316 Stainless Steel High Pressure Pipe
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Gnee Super Alloy (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of 304 316 stainless steel high pressure pipe in China. If you're going to wholesale high quality 304 316 stainless steel high pressure pipe made in China, welcome to get free sample from our factory. Good service and reasonable price are available.
The finish of the ss high pressure tube is suitable for aircraft industrial applications and other high end applications. There are capillary tubes, hollow sections, welded pressure piping and other types. The high pressure hydraulic stainless steel tubing is used in hydraulic systems to excerpt high pressure to components like lifts and jacks. The heavy machineries in earth moving and mining operations use the 3 8 high pressure stainless steel tubing. The different dimensions of the tubing are governed be the different standards. The high pressure 1/4 stainless steel tubing is one of the low diameter tubing where there are tubes up to 1 inches and sizes in between. The length of the tubes ranges up to 13m. The high pressure seamless tubing can also be made to custom cut to lengths.
Stainless Steel High Pressure Tube Specification
Standard lengths : 4-7 meters
Custom: up to 16 meters
Test and Certification: DIN EN 10204 3.1, ISO 17025
Third Party Inspection: Yes
Stainless Steel High Pressure Tubing Applications
- Oil and gas industries
- Petrochemical
- Power Plant
- Mining
Ultra High Pressure Stainless Steel Tubing material grades
| 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 |
WORKING PRESSURE |
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
Internal surface is free from flaws, laps, and fissures
deeper than 0.1 mm, max. 5 defects > 0.05 mm per cross-section.
defects of max. 0.02 mm as per DIN ISO 8535-1 can be reached.
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 |
High Pressure Stainless 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 |
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GNEE Steel Group is China's professional one-stop supply chain enterprise for steel products. Its stainless steel pipe production technology has reached the world's average technical level. It has been recognized by dozens of project companies and has become a star enterprise in Asia.
Over the last 30 years, we have been serving our clients, we have built a strong clientele across 32 countries and 15 industrial verticals, right from basic industries such a paper to highly demanding offshore services.
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