Zibo Zhaotai Stainless Steel Co., Ltd.
| Payment Terms | L/C,T/T |
| Delivery Time | 3 working days, based on order specifications. |
| Packaging Details | Tie the reinforcement, or upon negotiation |
| Steel Grade | 304, 304L, 316, 316L, 310S, 321, etc |
| Trade Term | Ex-Work, FOB, CNF, CFR, CIF, Etc |
| Surface Finish | Mill Finish, Not Polished. Available Surface Finishes: Polishing, Sandblasting, Brushed, Embossing, Painting, Etc. |
| Outer Diameter | Φ32-256mm |
| Wall Thickness | 3-55mm |
| Length | Please contact us for inquiries |
| Certification | AISI, ASTM, GB, DIN, BS, JIS |
| Place of Origin | China |
| Model Number | Φ32-256mm |
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Product Specification
| Payment Terms | L/C,T/T | Delivery Time | 3 working days, based on order specifications. |
| Packaging Details | Tie the reinforcement, or upon negotiation | Steel Grade | 304, 304L, 316, 316L, 310S, 321, etc |
| Trade Term | Ex-Work, FOB, CNF, CFR, CIF, Etc | Surface Finish | Mill Finish, Not Polished. Available Surface Finishes: Polishing, Sandblasting, Brushed, Embossing, Painting, Etc. |
| Outer Diameter | Φ32-256mm | Wall Thickness | 3-55mm |
| Length | Please contact us for inquiries | Certification | AISI, ASTM, GB, DIN, BS, JIS |
| Place of Origin | China | Model Number | Φ32-256mm |
| High Light | Stainless Steel thick walled pipe ，Seamless stainless steel round pipe ，ss round pipe 256mm | ||
Φ32-256mm Stainless Steel Seamless Thick-walled Pipe, feature a thickness-to-diameter ratio that provides enhanced strength, pressure resistance, and durability
What is Stainless Steel Heavy Wall Tube?
A stainless steel heavy wall tube is a tube with a wall thickness significantly greater than standard tubes relative to its outer diameter. Heavy wall tubes typically feature a thickness-to-diameter ratio that provides enhanced strength, pressure resistance, and durability.
Why Choose Stainless Steel Heavy Wall Tubes?
Stainless steel heavy wall tubes offer superior pressure rating, higher mechanical strength, and excellent resistance to external crushing and impact. They provide longer service life in high-stress environments and withstand higher temperatures and corrosive conditions compared to standard wall tubes. Heavy wall tubes also allow for threading, grooving, and machining without compromising structural integrity.
Process Overview
Seamless heavy wall tubes are produced by hot extrusion or rotary piercing of solid stainless steel billets, followed by cold drawing or cold rolling to achieve precise dimensions. After forming, heavy wall tubes undergo solution annealing to restore corrosion resistance and relieve internal stresses. The tubes are then pickled to remove surface scale, inspected for dimensional accuracy and wall thickness consistency, and cut to length. Non-destructive testing (ultrasonic or eddy current) is often performed to verify wall integrity.
304, 304L, 316, 316L, 310S, 321, etc
Mill Finish, Not Polished.
Available surface finishes: polishing, sandblasting, brushed, embossing, painting, etc. Please contact us for inquiries.
| Industry | Applications |
|---|---|
| Oil & Gas | Downhole tubing, wellhead components, subsea equipment, high-pressure pipelines |
| Chemical Processing | High-pressure reactor tubes, corrosion-resistant process lines, heat exchanger tubes |
| Power Generation | Boiler tubes, superheater tubes, nuclear reactor components |
| Hydraulic Systems | High-pressure hydraulic lines, cylinder barrels, heavy equipment lines |
| Marine | Shipbuilding structural components, propeller shafts, seawater cooling lines |
| Automotive | High-performance exhaust systems, roll cages, chassis reinforcement |
| Aerospace | Landing gear components, hydraulic lines, structural supports |
| Machinery Manufacturing | Heavy equipment shafts, press components, bearing housings, wear sleeves |
Stainless steel can be magnetic depending on its internal structure. Austenitic grades like 304 and 316 are normally non-magnetic, but ferritic (430) and martensitic (410) grades are magnetic due to their different crystal structure. Even 304 or 316 may become slightly magnetic after cold working such as bending or stamping, which transforms some austenite into martensite. Therefore, magnetism does not indicate quality — it simply reflects the steel's microstructure and processing history.
For standard materials and sizes held in stock, delivery is guaranteed within 3 days of payment receipt. For products requiring custom dimensions or surface finishes, the lead time is 7 to 15 working days after payment confirmation. Specific delivery schedules should be confirmed with customer service at the time of order placement.
A substantial inventory is maintained to ensure prompt delivery. Stock availability varies by material grade and dimensions. To avoid potential delays, please confirm current stock levels with your sales representative prior to placing an order.
Applicable product standards must be specified at the time of order. For projects with specific technical requirements, please provide detailed parameters, tolerance ranges, and other relevant specifications. A dedicated quality inspection department oversees all stages of production to ensure full compliance. Upon completion, accurate measurements, inspection images, video documentation, and material test reports are provided for customer confirmation.
Complimentary samples are available in any size; however, international shipping fees apply. These charges are deductible from future order payments following formal cooperation. Customized samples are also available for a fee. For further details, please consult your sales representative.
Custom markings on outer packaging are available upon request at no additional cost. Once the marking design is approved, it will be affixed using waterproof tape. If no specific marking is requested, packaging will be shipped without markings by default.
Material grade, dimensions, and other identifying information may be spray-marked directly onto the steel plate surface upon request. For applicable charges, please consult your sales representative.
Standard wooden pallet packaging is provided at no extra cost, with a loading capacity of 1 to 3 tons per pallet. Alternative packaging options, such as iron pallets, are available upon request. Please contact your sales representative for details — bulk orders qualify for preferential pricing.
We maintain partnerships with multiple freight forwarders to offer competitive land, air, and sea freight options. If you have a preferred freight forwarder, we can arrange delivery to your agent's warehouse or to the designated port of shipment.
Factory inspections and product inspections are fully supported. Customers are welcome to visit our facility for in-person inspections. Alternatively, third-party inspection agencies, including SGS, may be arranged to conduct on‑site inspections.
Company Details
Business Type:
Manufacturer
Year Established:
2006
Total Annual:
30,000,000-40,000,000
Employee Number:
60~100
Ecer Certification：
Verified Supplier
Our Company: Zhaotai is a China-based international factory specializing in stainless steel products from 2006. With annual domestic distribution exceeding 30,000 tons, the company has established a reliable supply capacity and a stable sourcing network. Building on this strong domestic foundation, ... Our Company: Zhaotai is a China-based international factory specializing in stainless steel products from 2006. With annual domestic distribution exceeding 30,000 tons, the company has established a reliable supply capacity and a stable sourcing network. Building on this strong domestic foundation, ...
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