GB/T 1824827SiMn / 30CrMnSi
For gas cylinders and mining props
High-Pressure Cylinder & Hydraulic Prop Tubes
4 Standards 5 Steel GradesOD 32 – 340 mm · WT 3 – 40 mm · Length up to 12 m
ISO 9001ISO 14001API Q1CEPED 2014/68/EU
- In stock, ready to ship
- MTR included with every batch
- SGS, BV, TÜV inspection on request
2008
Established
500,000 MT
Annual capacity
80+
Countries served
100%
Hydro tested
Overview
MTR- Standards
- GB/T 18248
- EN 10305-1
- DIN 1629
- ASTM A519
- Steel Grades
- 27SiMn30CrMnSi35CrMoSt52E355
- Size Range
- OD 32 – 340 mm · WT 3 – 40 mm · Length up to 12 m
- Surface finish
- Pickled & oiled, black, varnished or as specified
- End finish
- Plain ends or bevelled to order
- Marking
- Stenciled: standard, grade, heat no., size
- Inspection
- MTR + hydrostatic; third-party on request
Features
- Suitable for high-pressure gas cylinders
- Precise wall-thickness tolerance
- Good strength and fatigue resistance
- Pressure tested for safety-critical use
- Widely used in mining support systems
Applications
- High-pressure gas cylinders
- Hydraulic roof supports in mining
- Hydraulic cylinders and rods
- High-pressure mechanical parts
Quality Assurance & Testing
- Mill test certificates with full chemical and mechanical data
- 100% hydrostatic testing on every pipe
- Ultrasonic and eddy-current testing as required
- Third-party inspection by SGS, BV or TÜV on request
- Full heat-number traceability from billet to finished pipe
Packaging & Delivery
- Bundled, coated or marked to your specification
- Seaworthy export packaging with steel end caps
- Container or break-bulk loading, FOB, CFR or CIF terms
- Standard 20–25 day mill lead time, stock items faster
- Complete export documentation (invoice, packing list, MTC, CO)
