Seamless Steel Pipe
Gas Spring Precision Steel Tube
Cold drawn precision seamless tubes for gas spring bodies from 22x1.5 to 42x2.5 mm in SAE 1020, S355JR / A572 Gr50, C45 and 42CrMo4 - thin-wall cold drawn to wall deviation within ±0.05 mm and inner finish Ra within 1.6 um.
Specifications
- Application
- Gas spring and strut bodies for automotive, furniture, medical and industrial equipment
- Size Range (OD x WT)
- 22x1.5, 25x1.5, 28x1.5, 30x1.5, 35x2, 38x2, 40x2.5, 42x2.5 mm
- Grades
- SAE 1020 (ASTM A519); S355JR (EN) / A572 Gr50; C45; 42CrMo4
- Wall Deviation
- ±0.05 mm
- Inner Finish
- Ra within 1.6 um
- Process
- Thin-wall cold drawing, ISO 9001
- Standards
- ASTM and EN international standards (ASTM A519 / EN grade system).
Product Overview
Precision cold drawn tubes for gas spring bodies and struts, in four families matched to load and environment. SAE 1020 low carbon is weldable with stable size and cost-effective for high-frequency processing - furniture, medical devices, car tailgates and small toolbox struts. S355JR and A572 Gr50 raise tensile strength with excellent fatigue and impact resistance for car hoods, agricultural machinery, RV supports and general gas springs. Reinforced-wall 35 and 38 mm handle heavy loads and fatigue in harsh outdoor service, and C45 / 42CrMo4 alloy covers extreme damping duty.
Specifications and Standards
Sizes run from 22x1.5 mm to 42x2.5 mm (OD x wall). Thin-wall cold drawing holds wall deviation within ±0.05 mm with an inner finish of Ra within 1.6 um, so sealing is reliable and operation smooth - reducing leakage and extending service life. Production is to ISO 9001 and ASTM / EN material standards.
Applications
Automotive trunk and hood support systems from sedans to SUVs, with gas spring force ratings from 300 N to 1,200 N and positive prevention of accidental slam-shut; cabinet lift-doors and hospital beds requiring silent, stable adjustment; RV hatches, storage covers and industrial machinery access panels that must withstand repeated industrial cycles.
Ordering Information
Send OD x wall, grade, length and quantity to melinda@spai-steel.com. Custom force ratings, non-standard diameters and tighter tolerances are available - see our Customized Fittings Experts page.