Zhejiang Seamless Pipe Co., Ltd.
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Supply Ability | 200 ton/month |
| Delivery Time | 3 weeks/container |
| Packaging Details | Plywood case/iron case, plastic end caps and PVC film protection |
| Material Grade | TP347H |
| Standard | ASTM A213, ASTM A269, EN 10216-5 |
| Outer Diameter | 1/4"-2" (6.0mm-50.8mm) |
| Delivery Condition | Bright Annealed (BA), Heat Treated |
| Length | 6 Meters Fixed, Random Length |
| Application | Boilers, Superheaters, Heat Exchangers, Steam Lines |
| Brand Name | SMLSCO |
| Certification | ISO / PED / AD 2000 |
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Product Specification
| Payment Terms | L/C,D/A,D/P,T/T,Western Union | Supply Ability | 200 ton/month |
| Delivery Time | 3 weeks/container | Packaging Details | Plywood case/iron case, plastic end caps and PVC film protection |
| Material Grade | TP347H | Standard | ASTM A213, ASTM A269, EN 10216-5 |
| Outer Diameter | 1/4"-2" (6.0mm-50.8mm) | Delivery Condition | Bright Annealed (BA), Heat Treated |
| Length | 6 Meters Fixed, Random Length | Application | Boilers, Superheaters, Heat Exchangers, Steam Lines |
| Brand Name | SMLSCO | Certification | ISO / PED / AD 2000 |
Stainless Steel 347H Seamless Tube is specifically engineered for high temperature pressure systems, offering superior performance in demanding industrial applications.
| Attribute | Value |
|---|---|
| Standard | ASTM A213 / ASME SA213 / EN10216-5 |
| Outside Diameter | 6.35mm - 50.8mm (1/4" - 2") |
| Wall Thickness | As requested by the customer |
| Length | 6m, 12m, Fixed |
| Surface Condition | Bright Annealed / Pickled |
| End Connection | Plain Ends / Beveled Ends |
| Inspection | 100% PMI / Eddy Current / Dimensional Inspection |
| Packing | End protection / Plastic wrap / Wooden cases |
347H is an austenitic stainless steel developed from 347 with optimized high-temperature performance. It offers superior high-temperature strength and microstructural stability, making it suitable for piping systems operating continuously under high-temperature and high-pressure conditions. The addition of niobium in 347H effectively enhances intergranular corrosion resistance and maintains good microstructural stability under high-temperature operating conditions. As a result, 347H is commonly used in boilers, superheaters, heat exchangers, and high-temperature process piping.
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· Suitable for high-temperature, pressurized systems: 347H is better suited for long-term high-temperature operating environments and is commonly found in boilers, superheaters, and high-temperature heat exchange systems.
· Inventory support for more efficient procurement: SMLSCO maintains a stock of over 3,000 tons, enabling faster lead time responses for standard specifications.
· Clear Certification System: Seamless pipe products are certified under PED, ISO, and AD2000, facilitating compliant procurement for customers.
· Traceable Quality Process: Covers critical stages such as raw material verification, process control, and pre-shipment inspection, reducing risks during subsequent use.
· Ideal for Industrial B2B Procurement: Supports standardized specification confirmation and stable bulk supply for stockists, distributors, and wholesale customers.
347H stainless steel seamless tubes are primarily used in industrial systems with high requirements for high-temperature strength, heat resistance, and pressure-bearing performance, including:
In these applications, the material must maintain stable performance under sustained high-temperature conditions; therefore, 347H is commonly used in various high-temperature, high-pressure systems and is one of the key heat-resistant stainless steel materials.
Raw Material Inspection: Strict verification of chemical composition, material certificates, and basic quality.
In-Process Quality Control: Process monitoring at every stage of manufacturing to ensure product dimensions, surface finish, and performance meet standard requirements.
100% Pre-Shipment Inspection: Comprehensive inspection of dimensions, surface finish, and mechanical properties prior to shipment to ensure every product meets customer and project requirements.
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2006
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Zhejiang seamless pipe co.,ltd. (SMLSCO) is a specialized stainless steel piping systems provider with 19 years of industry experience. We began by supplying cost-effective stainless steel seamless pipes but for now, Smlsco is more than pipes. With 19 years of growth, we have establis... Zhejiang seamless pipe co.,ltd. (SMLSCO) is a specialized stainless steel piping systems provider with 19 years of industry experience. We began by supplying cost-effective stainless steel seamless pipes but for now, Smlsco is more than pipes. With 19 years of growth, we have establis...
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