Flowtera Pipe
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Standard: ASTM A519
Material: 4130 / 4140
Key Advantages: Known as Chromoly steel, it offers exceptional strength, resistance to fracturing, abrasion, and high-stress impact resistance. Ideal for heavy-duty industrial applications.
Description: Medium carbon alloy grades providing a balance of hardness, ductility, and high tensile strength through chromium and molybdenum alloying.
Our high-precision alloy tubes are widely used in:
| Standard | Steel Grade | C | Si | Mn | P | S | Cr | Mo |
|---|---|---|---|---|---|---|---|---|
| ASTM A519 | 4130/30CrMo | 0.28-0.33 | 0.15-0.35 | 0.40-0.60 | ≤0.04 | ≤0.04 | 0.8-1.1 | 0.15-0.25 |
| 4140/42CrMo | 0.38-0.43 | 0.15-0.35 | 0.75-1 | ≤0.04 | ≤0.04 | 0.8-1.1 | 0.15-0.25 |
| Hydraulic Tubing | Bundy Tube | Automotive Tube |
| Steel Forging | Precision Pipe | Stainless Pipe |
Located along the Yangtze Golden Channel, we operate in a prime geographic position close to major international ports. Our group includes two specialized manufacturing facilities: one focused on steel forgings for marine, power, and petrochemical fields, and another dedicated to precision steel tubes for the automotive and hydraulic industries.
With an area of 150,000 square meters and over 200 employees, we enforce a double-inspection protocol for all products to ensure high-quality standards before delivery.
We provide a pre-production sample before mass production and conduct a final inspection before every shipment to ensure compliance with specifications.
Our range includes Seamless Steel Pipes, Hydraulic Oil Tubes, Precision Tubes, Stainless Steel Tubes, and Bundy Tubes.
These grades offer high tensile strength, toughness, and resistance to impact and abrasion, making them ideal for high-stress industrial applications.
We offer various conditions including Cold Drawn (BK), Stress Relieved (BKS), Annealed (GBK), Normalized (NBK), and Quenched & Tempered (QT).
They are widely used in automotive, aerospace, military aircraft, oil & gas drilling, and chemical machinery industries.
We accept various terms including FOB, CFR, CIF, EXW, DDP, and DDU, with payments accepted in USD, EUR, HKD, and CNY.
