好的，我帮你把 EN 10305-1 Cold Drawn Seamless Precision Steel Tube 的内容重新排版去掉所有分隔线，并保持结构清晰：
EN 10305-1 Cold Drawn Seamless Precision Steel Tube
Engineered for High Precision and Mechanical Performance
Model: CX-10305P Brand: CHENGXIN HS Code: 730441
Minimum Order: 2–3 tons/size
Product Overview
EN 10305-1 Cold Drawn Seamless Precision Tubes are manufactured through cold drawing or cold rolling to achieve tight dimensional tolerances and excellent surface finish.
They are widely used in machinery components, automotive systems, hydraulic applications, and oil & gas pipeline pigging where precision, durability, and mechanical performance are critical.
We supply carbon steel and alloy steel grades with various delivery conditions to meet diverse technical requirements.
Keywords: wholesale en 10305-1 seamless precision steel tubes, e235 tube, carbon steel mechanical tubing, cold drawn seamless tubing, cold drawn steel tubes, precision steel tubes
Product Features
Type: Cold Drawn / Cold Rolled Seamless Precision Tube
Standards: EN 10305-1, DIN 2391-2, ASTM A519, EN 10305-4 (on request)
Surface Finish: Bright finish with superior concentricity & straightness
Material Grades
Standard | Available Steel Grades |
|---|
ASTM A519 | SAE1010, SAE1020, SAE1026, SAE1045, SAE4130, SAE4140 |
DIN 2391-2 | ST35, ST45, ST52 |
EN 10305-1 | E195, E235, E355, C35E, C45E, 25CrMo4, 34CrMo4, 42CrMo4 |
EN 10305-4 | E215, E235, E355 |
GB/T 3639 | 10#, 20#, 45#, Q345 series, 25Mn, 27SiMn |
Custom grades available upon request.
Size Range
Outer Diameter (OD): up to 356mm
Inner Diameter (ID): up to 340mm
Wall Thickness (WT): no limitation
Manufacturing Processes
Cold Drawn
Cold Rolled
Hydraulic Cold Drawn
These processes improve mechanical properties, dimensional tolerance, and surface finish.
Delivery Conditions
Symbol | Description | Process |
|---|
BK | As Drawn | +C / Cold Drawn |
BKW | Light Cold Worked | +LC / Slightly Cold Worked |
BKS | Stress Relieved | +SR / After Cold Drawing |
GBK | Annealed | +A / Soft Annealed |
NBK | Normalized | +N / Heat Treated |
Q+T | Quenched + Tempered | Increased Strength & Toughness |
End Finishing & Packing
End Finish: Plain cut or bevelled, burr-free
Surface Treatment: Anti-rust oil (internal & external)
Packaging: Bundled with steel straps, wrapped in PVC & knitted bags
Marking: As per customer request
Application Areas
Automotive structural parts & frames
Hydraulic & pneumatic cylinders
Shock absorbers & precision mechanical parts
Pipeline cleaning (pigging) systems
Energy equipment, agriculture machinery, general engineering
Why Choose Our Precision Tubes?
✅ Tight tolerance control & high dimensional accuracy
✅ Enhanced mechanical properties from cold drawing
✅ Clean, bright internal & external surfaces
✅ Wide range of carbon & alloy grades available
✅ Professional packaging for global logistics
FAQ
Q1: What’s your minimum order quantity (MOQ)?
A: 2–3 tons/size for OD ≤ 250mm; 10 tons/size for OD > 250mm.
Q2: How long is your delivery time?
A: 40–60 days depending on size, grade, and raw material availability.
Q3: What are your payment terms?
A: T/T, L/C, D/P (based on credit evaluation).
Q4: Do you offer inspection or certificates?
A: Yes. Third-party inspections are welcomed. Mill test certificates & dimensional reports are provided.
Q5: How do you ensure quality?
A:
90% of raw materials sourced from leading steel mills
Strict inspection at every production stage
Final dimensional & surface checks before dispatch
About CHENGXIN Precision Tubing
With over 20 years of experience in cold drawn & cold rolled seamless tubes, CHENGXIN operates advanced production lines including:
2 hydraulic cold drawing benches
4 chain-type drawing lines
In-house heat treatment & machining
Advanced testing & inspection equipment
We supply over 30,000 tons annually to OEMs, distributors, and end-users across Europe, Southeast Asia, and the Americas.
