Zhejiang Seamless Pipe Co., Ltd.
| Length | Max.6M |
| Material | 304L |
| WT | Sch5s - XXS |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability | 1000 ton/month |
| Delivery Time | 2 weeks/container |
| Packaging Details | Bundles in woven bag/plywood case With plastic end caps |
| Standard | ASTM A312, etc |
| Size | OD: 1/4" - 24" |
| Surface Treatment | Annealed & Pickled |
| Brand Name | SMLSCO |
| Certification | ISO PED |
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Product Specification
| Length | Max.6M | Material | 304L |
| WT | Sch5s - XXS | Payment Terms | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability | 1000 ton/month | Delivery Time | 2 weeks/container |
| Packaging Details | Bundles in woven bag/plywood case With plastic end caps | Standard | ASTM A312, etc |
| Size | OD: 1/4" - 24" | Surface Treatment | Annealed & Pickled |
| Brand Name | SMLSCO | Certification | ISO PED |
| High Light | Power Plant TP304L Seamless Pipe ，ASTM A312 Seamless Pipe ，TP304L Seamless Pipe Sch40 | ||
| Attribute | Value |
|---|---|
| Material | 304L |
| Size | OD: 1/4" - 24" |
| WT | Sch5s - XXS |
| Length | Max.6M |
| Standard | ASTM A312, etc |
| Surface Treatment | Annealed & Pickled |
TP304L features ultra-low carbon design to significantly enhance intergranular corrosion resistance. Its high Cr-Ni content maintains strength and toughness during continuous operation above 400°C. The heavy-wall Sch40 construction provides higher pressure tolerance, safely withstanding chloride corrosion and thermal cycling in power plant steam and high-pressure feedwater systems.
SMLSCO maintains 2000 tons of TP304L pipe year-round (Sch5s - XXS), with standard specifications shippable within two weeks. Centralized procurement of high-alloy billets and scaled cold-drawing processes optimize cost efficiency - empowering distributors with dual competitive edge in pricing and lead time for high-corrosion applications.
TP304L seamless pipes excel in power generation due to ultra-low carbon content (<0.03%) preventing intergranular corrosion during welding and 400-550°C service. Their 18% Cr/8% Ni composition maintains oxidation resistance in boiler feedwater systems, while Sch40 heavy-wall design withstands 1,500+ psi steam pressure.
These properties ensure 100,000+ hour service life in coal/gas-fired plants, reducing unplanned outages by 40% versus carbon steel alternatives in condensate return systems.
Three-tier quality control:
All data is traceable with available SGS/TÜV third-party reports, ensuring consistent performance and stable quality across batches.
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All wooden crates comply with automated US/EU warehouse requirements. Impact/moisture-proof packaging ensures transit safety, delivering shelf-ready products that eliminate customer reprocessing.
FAQ
Q1: Why is this A312 TP304L seamless steel pipe particularly well-suited for high-pressure feedwater and steam systems in power plants?
A1: This steel pipe features an ultra-low-carbon design that effectively prevents intergranular corrosion during welding and high-temperature operation. Its high chromium and nickel content ensures excellent strength and oxidation resistance even at temperatures above 400°C. Combined with the Sch40 thick-wall design, it can safely withstand the high-pressure steam and thermal cycles of over 1,500 psi found in power plant systems.
Q2: What practical significance do the Sch40 pressure rating and the seamless manufacturing process mentioned in the product description have for the safety of power plant piping?
A2: The seamless manufacturing process eliminates weld-induced weaknesses, resulting in exceptionally uniform mechanical strength. The heavy-wall Sch40 construction provides higher pressure tolerance, and when combined with the seamless structure, it eliminates the risk of chloride-induced stress corrosion cracking (SCC) in cooling water circulation systems.
Q3: How does SMLSCO ensure quality control for this critical high-pressure seamless pipe used in power plants?
A3: We implement a rigorous three-tier quality control system: This includes PMI spectral verification of raw materials, full-length eddy current (ET) and ultrasonic (UT) non-destructive testing during production, as well as 100% dimensional inspection and individual pipe photography prior to shipment.
Q4: For international shipping, how do you package this batch of 6-meter-long Sch40 high-pressure steel pipes to ensure they arrive undamaged?
A4: We provide customized protective packaging based on the mode of transport. For full container loads (FCL), the pipes are bundled with woven bags and fitted with end caps; for less-than-container loads (LCL), they are packed in fumigation-free plywood crates that meet the requirements of automated warehouses in the US and Europe. Professional impact- and moisture-resistant packaging ensures the pipes arrive intact and ready for immediate use.
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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