Import Stainless Pipe Tp304/Tp316l/Tp321 — Buy in wholesale FOB from Supplier in China
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Stainless Pipe Tp304/tp316l/tp321
Wenzhou Meilin Steel Co., Ltd. supplies custom‑size 4‑inch stainless steel welded pipes in grades TP304, TP316L and TP321. The pipes conform to ASTM A270 and DIN 11850 standards and are also certified to ASTM A269/270/312 and 3A specifications. Inner‑diameter surface roughness is limited to 20 µin Ra (0.5 µm) maximum and outer‑diameter roughness to 30 µin Ra (0.8 µm) maximum, measured according to ASME/ANSI B46.1. Each pipe is hydrogen‑bright annealed to a minimum temperature of 1900 °F (1040 °C) and then rapidly quenched.
Grade 316L provides superior resistance to chloride‑induced pitting, while grade 321 offers enhanced stability at elevated temperatures, making the three grades suitable for diverse sanitary environments. In the pipe industry, a 4‑inch sanitary pipe is typically supplied in schedule 40 with a pressure rating of 150 psi at 100 °C, which aligns with the performance expectations of many food‑process plants. Dimensional tolerance for such pipes is commonly ±0.2 mm on outer diameter and length, a standard that ensures consistent fit‑up during installation. The surface finish values and annealing treatment meet the typical requirements for hygienic conveyance of food, beverage and pharmaceutical fluids.
Buyers such as dairy processors, beverage manufacturers and pharmaceutical firms frequently source these pipes for hygienic water delivery and product transfer systems. Trade is usually conducted on FOB terms from Chinese ports, with lead times that depend on order size and current alloy market conditions; the supplier notes that nickel and chromium alloy surcharges influence pricing. Minimum order quantities are not disclosed in the listing, so importers should request the exact MOQ and payment terms directly from the supplier. Confirmation of certifications, mill test reports and packaging details should be obtained before finalising any purchase.
| Grade | 304 / 316L / 321 |
| Diameter | 4 inch |
| Standard | ASTM A270, DIN 11850 |
| Surface finish (ID) | 20 µin Ra (0.5 µm) max |
| Surface finish (OD) | 30 µin Ra (0.8 µm) max |
| Annealing process | Hydrogen bright annealed to minimum 1900°F (1040°C) |
| Typical pressure rating | typical 150 psi at 100 °C |
| Typical dimensional tolerance | typical ±0.2 mm on OD and length |
| Typical length | typical 6 m per pipe |
| Typical packaging | typical bundled in wooden crates, 10 pieces per crate |
Wenzhou Meilin Steel Co., Ltd. is located in the Binhai Industrial District of Wenzhou, Zhejiang Province, China (postal code 325024). The company is listed with a harbor trust tier, but the current response rate is recorded as 0 % and no average response time is available, indicating that prospective buyers should manage communications proactively.
The supplier advertises custom‑size stainless steel welded pipes made from 304, 316L and 321 grades, highlighting applications in food processing, water supply, dairy, beverage, construction and oil‑gas conveyance. It states compliance with ASTM A269/270/312, 3A standards and mentions hydrogen‑bright annealing, surface‑finish specifications and the use of high‑quality raw materials, without providing additional corporate history or client references.
Stainless steel welded pipes in TP304, TP316L, and TP321 grades are widely used across food processing, pharmaceutical, dairy, and chemical industries where corrosion resistance and hygiene are critical. TP316L offers superior corrosion resistance in chloride environments, while TP321 provides enhanced high-temperature stability. These 4-inch sanitary pipes are globally traded commodities with pricing influenced by nickel and chromium alloy surcharges.
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Sourcing Stainless Pipe Tp304/tp316l/tp321 from Wenzhou Meilin Steel Co., Ltd. - China Import Guide
Before placing an order with Wenzhou Meilin Steel, the importer should verify that the pipe grade (304, 316L or 321) matches the intended process environment and request the latest mill test report confirming compliance with ASTM A269/270/312 and 3A standards. It is also prudent to ask for a surface roughness certificate that documents the 20 µin Ra inner and 30 µin Ra outer limits. Confirm that the annealing temperature of at least 1900 °F (1040 °C) has been achieved, as this affects corrosion resistance.
Shipping from Zhejiang province typically departs from ports such as Ningbo or Shanghai; the buyer should clarify the preferred Incoterm, most commonly FOB or CIF, and agree on the expected lead time, which the supplier indicates varies with order volume and alloy price fluctuations. Payment terms are usually negotiated as a T/T advance against a signed contract, but the importer must obtain the exact payment schedule from the supplier. Because the supplier’s response rate is currently recorded as zero, maintain a written record of all communications to ensure traceability.
Upon arrival, the importer should arrange a third‑party inspection that includes visual examination of surface finish, dimensional verification against the ±0.2 mm tolerance, and hydrostatic testing to confirm the typical pressure rating of 150 psi at 100 °C. Request the original certificates of conformity and the full mill test report to accompany the shipment. If additional testing, such as microbiological purity for pharmaceutical use, is required, this should be stipulated in the purchase agreement before production.
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30 suppliersBuy Stainless Pipe Tp304/Tp31 in Bulk — Verified Supplier in China
When sourcing Stainless Pipe Tp304/Tp316l/Tp321 for your business, securing the right balance of quality and cost is essential. Wenzhou Meilin Steel Co., Ltd., a verified supplier based in China, offers this product with key specifications including TP304 / TP316L / TP321 (austenitic stainless steel), 18% Cr, 8-12% Ni (304); 16% Cr, 10% Ni, 2% Mo (316L); Ti-stabilized (321), and Available in 1/2" to 12" NB; schedule 5S to 40S; custom sizes supported. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $3000/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 7306.40, making it a staple in the Stainless Steel Pipes & Pipe Fittings sector with strong demand from importing countries worldwide.
Stainless Pipe Tp304/Tp31 Specifications, Trade Terms & Pricing
Importing Stainless Pipe Tp304/Tp31 requires careful attention to shipping logistics, customs compliance, and secure payment terms. Wenzhou Meilin Steel Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 7306.40 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading online B2B marketplace designed to make cross-border trade secure and efficient.
About Wenzhou Meilin Steel Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Stainless Pipe Tp304/Tp31 has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Stainless Steel Pipes & Pipe Fittings category and connect with top-tier exporters on our comprehensive B2B marketplace. Start your sourcing journey today.
Import Stainless Pipe Tp304/Tp31 — Shipping, Logistics & Customs
Importing Stainless Pipe Tp304/Tp31 requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 7306.40 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Stainless Pipe Tp304/Tp31
What is the wholesale price of Stainless Pipe Tp304/Tp316l/Tp321?
The current listed wholesale price for Stainless Pipe Tp304/Tp316l/Tp321 from Wenzhou Meilin Steel Co., Ltd. is $3000/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Wenzhou Meilin Steel Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Stainless Pipe Tp304/Tp31?
The supplier, Wenzhou Meilin Steel Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Stainless Pipe Tp304/Tp31. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Stainless Pipe Tp304/Tp316l/Tp321?
For international shipping and customs clearance, Stainless Pipe Tp304/Tp316l/Tp321 is classified under HS Code 7306.40. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Stainless Pipe Tp304/Tp31 from China?
To import Stainless Pipe Tp304/Tp31 from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Wenzhou Meilin Steel Co., Ltd.. Ensure you have the necessary import licenses for Stainless Steel Pipes & Pipe Fittings products in your destination country.
Is Wenzhou Meilin Steel Co., Ltd. a verified supplier?
Yes, Wenzhou Meilin Steel Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Stainless Pipe Tp304/Tp316l/Tp321?
The key specifications for Stainless Pipe Tp304/Tp316l/Tp321 supplied by Wenzhou Meilin Steel Co., Ltd. include TP304 / TP316L / TP321 (austenitic stainless steel), 18% Cr, 8-12% Ni (304); 16% Cr, 10% Ni, 2% Mo (316L); Ti-stabilized (321), and Available in 1/2" to 12" NB; schedule 5S to 40S; custom sizes supported. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Stainless Pipe Tp304/Tp31?
Wenzhou Meilin Steel Co., Ltd. offers Stainless Pipe Tp304/Tp31 with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Stainless Pipe Tp304/Tp31 the most?
Stainless Pipe Tp304/Tp31 is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Wenzhou Meilin Steel Co., Ltd. through our platform.
What certifications does this Stainless Pipe Tp304/Tp31 supplier hold?
Wenzhou Meilin Steel Co., Ltd. maintains international quality certifications. These ensure that the Stainless Pipe Tp304/Tp31 meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Stainless Pipe Tp304/Tp316l/Tp321 on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Wenzhou Meilin Steel Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Wenzhou Meilin Steel Co., Ltd..
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