Stainless Steel Gas Struts — Durable Marine & Industrial Solutions
Excellent corrosion resistance
High-quality stainless steel gas struts provide reliable corrosion resistance and have passed a 900-hour salt spray test.
304 & 316L Stainless Steel
304 for general outdoor and industrial use; 316L for marine, saltwater, and frequent-cleaning environments.
Standard & Custom Options
Standard stainless steel gas springs are available, with custom sizes and logo branding offered to meet your equipment and installation requirements.
Professional Stainless Steel Gas Strut Manufacturer
Since 2003, GASTAC has been a professional manufacturer of stainless steel gas struts in China. We offer standard and custom models in 304 (EN 1.4301) and 316L (EN 1.4404 / ASTM A276-10) stainless steel, including options for food-grade applications. Our stainless gas struts provide controlled lifting and reliable support for boat engine hatches, boat deck lids, dock boxes, mobile food carts, and milk tank lids in wet, saltwater, or frequently cleaned environments.
Stainless Steel Gas Struts
What are Stainless Steel Gas Springs?
Stainless steel gas springs are sealed, nitrogen-filled struts that provide smooth lifting, lowering, and support for moving parts.
They offer better corrosion resistance than standard carbon steel gas springs, making them suitable for marine, food-processing, medical, outdoor, and industrial applications.
What Is the Difference Between 304 and 316L Stainless Gas Struts?
For stainless gas struts used in marine, coastal, food-processing, or medical environments, material selection directly affects corrosion resistance and service life. The table below compares 304 and 316L stainless steel for common application conditions.
| Feature | 304 Stainless Steel | 316L Stainless Steel (GASTAC Standard Range) |
|---|---|---|
| Molybdenum Content | None | About 2%, helping improve corrosion resistance |
| Saltwater Resistance | Limited; risk of pitting in marine environments | High; suitable for marine-grade applications |
| Chemical Resistance | Moderate | Excellent against chlorides and harsh environments |
| Ideal Applications | Indoor furniture, kitchens, and general equipment | Boats, food plants, medical equipment, and coastal use |
316L Stainless Steel Gas Shocks
316L stainless gas shocks are engineered for maximum corrosion resistance, making them the top choice for marine, coastal, chemical, and medical environments. With enhanced durability against saltwater, chemicals, and harsh conditions, they deliver extended service life and reliable performance even in the toughest applications. For industries where safety and longevity are critical, 316L offers unmatched quality.
304 Stainless Steel Gas Shocks
304 stainless gas shocks provide an excellent balance of performance and cost-effectiveness. With strong resistance to everyday rust and oxidation, they are widely used in outdoor equipment, industrial machinery, and food-grade applications. Their durability and hygienic properties make them ideal for environments that require cleanliness and reliability, while offering an economical choice for most standard projects.
Marine Gas Strut Specifications
When selecting or replacing a gas strut, it is important to measure the key dimensions accurately. Start with the Rod Diameter and Body Diameter, which determine the strength and load capacity of the gas spring. Next, measure the Stroke, which is the distance the rod can travel between the fully compressed and fully extended positions. Finally, record the Extended Length, which is the total length of the gas spring from the center of one end fitting to the other when fully extended. By following these steps, you can ensure the correct specifications for your application and achieve reliable performance.
6-15 Stainless Steel Gas Springs
| GASTAC Code | Stroke Length (mm) | Extended Length (mm) | Compressed Length C (mm) | Rod/Body Diameter (mm) | Force Range F1 (N) | Lift Easy Cross Reference |
|---|---|---|---|---|---|---|
| GTS61515550 | 40 | 155 | 115 | 6/15 | 50-400 | GSSK15-155/050N |
| GTS61519550 | 60 | 225 | 165 | 6/15 | 50-400 | GSSK15-195/050N |
| GTS61523550 | 80 | 235 | 155 | 6/15 | 50-400 | GSSK15-235/050N |
| GTS61525550 | 80 | 255 | 175 | 6/15 | 50-400 | GSSK15-255/050N |
| GTS61527550 | 100 | 275 | 175 | 6/15 | 50-400 | GSSK15-275/050N |
| GTS61531550 | 120 | 315 | 195 | 6/15 | 50-400 | GSSK15-315/050N |
| GTS61533050 | 125 | 330 | 205 | 6/15 | 50-400 | GSSK15-330/050N |
| GTS61537550 | 150 | 375 | 225 | 6/15 | 50-400 | GSSK15-375/050N |
| GTS61539050 | 160 | 390 | 230 | 6/15 | 50-400 | GSSK15-390/050N |
| GTS61543050 | 175 | 430 | 255 | 6/15 | 50-400 | GSSK15-430/050N |
| GTS61550550 | 210 | 505 | 295 | 6/15 | 50-400 | GSSK15-505/050N |
8-18 Stainless Steel Gas Springs
The 8-18 stainless steel gas springs feature an 8mm rod diameter and 18mm body diameter. The diagram below illustrates the key measurements, including extended length, compressed length, stroke, rod diameter, body diameter, and end fitting dimensions.
| GASTAC Code | Stroke Length (mm) | Extended Length (mm) | Compressed Length C (mm) | Rod/Body Diameter (mm) | Force Range F1 (N) | Lift Easy Cross Reference |
|---|---|---|---|---|---|---|
| GTS818310700 | 120 | 310 | 190 | 8/18 | 100-700 | GSSK18-310/100N |
| GTS818390700 | 160 | 390 | 230 | 8/18 | 100-700 | GSSK18-390/100N |
| GTS818410700 | 170 | 410 | 240 | 8/18 | 100-700 | GSSK18-410/100N |
| GTS818510700 | 215 | 510 | 295 | 8/18 | 100-700 | GSSK18-510/100N |
| GTS818525700 | 225 | 525 | 300 | 8/18 | 100-700 | GSSK18-525/100N |
| GTS818585700 | 255 | 585 | 330 | 8/18 | 100-700 | GSSK18-585100N |
| GTS818610700 | 265 | 610 | 345 | 8/18 | 100-700 | GSSK18-610/100N |
| GTS818630700 | 280 | 630 | 350 | 8/18 | 100-700 | GSSK18-630/100N |
| GTS818710700 | 315 | 710 | 395 | 8/18 | 100-700 | GSSK18-710/100N |
10-22 Stainless Steel Gas Springs
The 10-22 stainless steel gas springs feature a 10mm rod diameter and 22mm body diameter. The diagram below illustrates the key measurements, including extended length, compressed length, stroke, rod diameter, body diameter, and end fitting dimensions.
| GASTAC Code | Stroke Length (mm) | Extended Length (mm) | Compressed Length C (mm) | Rod/Body Diameter (mm) | Force Range F1 (N) | Lift Easy Cross Reference |
| GTS10225851100 | 255 | 585 | 330 | 10/22 | 100-1100 | GSSK22-585/100N |
| GTS10227001100 | 305 | 700 | 395 | 10/22 | 100-1100 | GSSK22-700/100N |
| GTS10227101100 | 305 | 710 | 405 | 10/22 | 100-1100 | GSSK22-710/100N |
| GTS10228201100 | 360 | 820 | 460 | 10/22 | 100-1100 | GSSK22-820/100N |
14-28 Stainless Steel Gas Springs
The 14-28 stainless steel gas springs feature a 14mm rod diameter and 28mm body diameter. The diagram below illustrates the key measurements, including extended length, compressed length, stroke, rod diameter, body diameter, and end fitting dimensions.
GASTAC Code
Stroke Length (mm)
Extended Length (mm)
Compressed Length C (mm)
Rod/Body Diameter (mm)
Force Range F1 (N)
Lift Easy Cross Reference
GTS142811002000
500
1100
600
14/28
100-2000
GSSK28-1100/100N
GTS142812002000
545
1200
655
14/28
100-2000
GSSK28-1200/100N
Attwood Stainless Steel Gas Springs Cross Reference
| Gastac Product Code | Expanded Length: | Compressed Length | Stroke | Force （lbs） |
Attwood Cross Reference |
|---|---|---|---|---|---|
| GTS25420 | 10″ | 7″ | 3″ | 20 | ST30205 |
| GTS25440 | 10″ | 7″ | 3″ | 40 | ST30405 |
| GTS19020 | 7.5″ | 5.25″ | 2.25″ | 20 | ST31205 |
| GTS26630 | 10.5″ | 7.5″ | 3″ | 30 | ST32305 |
| GTS38120 | 15″ | 9.5″ | 5.5″ | 20 | ST33205 |
| GTS38140 | 15″ | 9.5″ | 5.5″ | 40 | ST33405 |
| GTS38160 | 15″ | 9.5″ | 5.5″ | 60 | ST33605 |
| GTS508120 | 20″ | 12″ | 8″ | 120 | ST341205 |
| GTS50820 | 20″ | 12″ | 8″ | 20 | ST34205 |
| GTS50830 | 20″ | 12″ | 8″ | 30 | ST34305 |
| GTS50840 | 20″ | 12″ | 8″ | 40 | ST34405 |
| GTS50880 | 20″ | 12″ | 8″ | 80 | ST34805 |
| GTS50890 | 20″ | 12″ | 8″ | 90 | ST34905 |
| GTS30540 | 12.04″ | 8.46″ | 3.58″ | 40 | ST35405 |
| GTS30550 | 12.04″ | 8.46″ | 3.58″ | 50 | ST35505 |
| GTS43640 | 17.2″ | 10.2″ | 7″ | 40 | ST36405 |
| GTS43670 | 17.2″ | 10.2″ | 7″ | 70 | ST36705 |
| GTS43690 | 17.2″ | 10.2″ | 7″ | 90 | ST36905 |
Boat Outfitters Stainless Steel Gas Springs Cross Reference
| Gastac Product Code | Expanded Length: | Compressed Length | Stroke | Force （lbs） |
Boat Outfitters Cross Reference |
|---|---|---|---|---|---|
| GTS508100 | 20″ | 12″ | 8″ | 20-100 | 260-2486 |
| GTS30560 | 12″ | 8″ | 4″ | 20-60 | 060-3547-CP |
| GTS43660 | 17.20″ | 10.20″ | 7″ | 20-60 | 260-1679-CP |
| GTS19030 | 7.5″ | 5.5″ | 2″ | 5-30 | 060-3586-CP |
| GTS58460 | 23″ | 13″ | 10″ | 90 | 060-3633 |
| GTS47060 | 18.5″ | 11.25″ | 7.25″ | 20-60 | 060-3570-CP |
| GTS66620 | 26.25″ | 14.7″ | 11.55″ | 20 | 060-3698 |
Stainless Steel Gas Shock Applications
Marine Industry
GASTAC marine gas springs and boat gas struts are engineered to withstand saltwater, humidity, and harsh marine environments. With excellent corrosion resistance and reliable performance, they provide smooth, controlled support for hatches, doors, engine covers, storage compartments, and lids on boats and yachts.
Food Safety
GASTAC stainless gas springs are designed for demanding food processing environments, offering excellent corrosion resistance, hygienic surfaces, and easy cleaning. Their smooth and controlled movement helps support equipment covers, access panels, and doors while meeting strict sanitation, durability, and food safety requirements.
Medical Equipment
GASTAC stainless gas struts deliver precise, stable, and reliable force for medical equipment such as hospital beds, diagnostic devices, treatment tables, and laboratory systems. Their corrosion-resistant stainless steel construction supports durability, smooth operation, easy cleaning, and reliable performance in demanding medical environments.
Gas Spring End Fittings
DR001
YY001
QT001
ZDT001
Frequently Asked Questions
