Factory and Activities
Specifications
General Information
| Property | Detail |
|---|---|
| Product Name | Polypropylene Resin T4401 |
| Brand | Kun Lun (昆仑) |
| Polymer Type | Random Copolymer Polypropylene (PP-R) |
| Manufacturer | PetroChina Dushanzi Petrochemical Company |
| Production Process | Innovene Gas-Phase Horizontal Stirred Bed |
| Catalyst | Ziegler-Natta |
| Comonomer | Ethylene |
| Executed Standard | Q/SY DS 136-2023 |
| Appearance | Natural-color pellets; no black particles or impurities |
| CAS No. | 9010-79-1 |
| HS Code | 3902.10 |
Technical Properties
| Property | Unit | Specification | Tested Value | Test Method |
|---|---|---|---|---|
| Color granules & black spot particles | piece/kg | ≤10 | 0 | SH/T 1541.1 |
| Oversize / undersize particles | g/kg | ≤10 | 0.2 | SH/T 1541.1 |
| Melt Flow Rate (230°C / 2.16 kg) | g/10min | 0.25 ± 0.05 | 0.24 | GB/T 3682.1-2018 |
| Tensile Strength at Yield | MPa | ≥20 | 23.8 | GB/T 1040.2-2022 |
| Nominal Tensile Strain at Break | % | ≥400 | 442 | GB/T 1040.2-2022 |
| Tensile Modulus of Elasticity | MPa | ≥650 | 789 | GB/T 1040.2-2022 |
| Charpy Impact Strength (23°C) | kJ/m² | ≥40 | 81 | GB/T 1043.1-2008 |
| Charpy Impact Strength (-20°C) | kJ/m² | ≥1.5 | 2.1 | GB/T 1043.1-2008 |
| Load Deformation Temperature (Tf 0.45) | °C | ≥60 | 64 | GB/T 1634.2-2019 |
| Oxidation Induction Time (210°C) | min | ≥30 | 39.0 | GB/T 19466.6 |
| Melting Temperature | °C | ≤148 | 147 | GB/T 19466.3 |
Applications
PP T4401's primary use is extrusion of PP-R pipe systems for hot and cold water distribution, along with the injection-molded fittings — elbows, tees, reducers, and couplings — that connect those systems. PP-R piping has displaced copper and galvanized steel across residential and commercial plumbing in much of Asia, the Middle East, and Eastern Europe. The material is inert to chlorinated potable water, scale-resistant, and heat-fusible without adhesives or mechanical connectors.
The PPR 100 certification T4401 holds from China's National Chemical Building Materials Testing Center is a legal prerequisite for installation in potable water systems in China — not a voluntary quality indicator. Pipe manufacturers supplying the domestic market or exporting to jurisdictions that recognize Chinese certification need this designation on their incoming resin. T4401's certification removes that compliance step from the pipe producer's qualification process.
For pressurized hot water service, the combination of a 789 MPa tensile modulus and a 64°C load deformation temperature supports pipe wall integrity under sustained operating pressure at elevated temperature. The 442% elongation at break gives fittings the ductility to absorb pressure surges and thermal cycling without cracking — a failure mode that higher-stiffness, lower-elongation materials produce in service.
Handling, Storage & Safety Guidelines
PP T4401 carries no hazardous substance classification under standard transport regulations. The resin presents no inhalation or dermal toxicity risk in solid pellet form during normal warehouse handling and storage.
During extrusion processing, melt temperatures above 260°C can generate thermal degradation fumes. Standard practice for PP pipe extrusion includes adequate ventilation at the extruder head and die zone. Operators should follow the equipment manufacturer's recommended barrel temperature profiles for PP-R materials.
Store T4401 pellets in a cool, dry, well-ventilated warehouse away from open flame and direct heat sources. Polypropylene is combustible; standard fire-prevention procedures for thermoplastic resin storage apply. Keep bags stacked on pallets, off the ground, and away from direct sunlight to prevent UV degradation of the packaging material and maintain pellet quality through the shelf life of the batch.
Why Source Through BASTONE
BASTONE distributes PP T4401 as a listed distributor within PetroChina's commercial channel — allocation access directly through the producer's distribution system rather than secondary market procurement. Every batch ships with the original Dushanzi Petrochemical Product Quality Inspection Sheet, which records actual laboratory results for the specific production batch, not a template certificate filled in with specification limits. For buyers whose QA teams require batch-to-batch traceability, that distinction matters at goods receipt.
BASTONE's parent group operates four production sites and an R&D center, which gives the technical team working knowledge of polymer processing conditions and grade performance that a pure trading house typically lacks. Buyers evaluating multiple PP-R grades for specific pipe dimensions, line speeds, or fusion welding parameters can work directly with BASTONE's team on grade selection rather than relying solely on datasheet comparisons.
Export operations run through Zhejiang Bastone Technology Co., Ltd, with over a decade of experience coordinating petrochemical shipments. Documentation management — COA translation, third-party inspection scheduling, certificate of origin, and bank document preparation for letter-of-credit settlements — runs as a standard part of the export process. For importers managing compliance across multiple jurisdictions, consistent documentation quality reduces clearance delays and administrative cost.
Sourcing & Logistics
| Detail | Information |
|---|---|
| Supply Origin | PetroChina Dushanzi Petrochemical Company, Xinjiang, China |
| Polymer Type | PP-R (Random Copolymer Polypropylene) |
| Packaging | 25 kg woven polypropylene bags |
| Export Entity | Zhejiang Bastone Technology Co., Ltd |
| Port of Loading | ALASHANKOU, KHORGAS, Shanghai, Qingdao |
| Documentation | Batch-specific COA, packing list, commercial invoice, bill of lading; third-party inspection available on request |
| Trade Terms | FOB, CIF, CFR available |
| Sample Availability | Available on request — contact BASTONE for current lead time and MOQ |