What surface finishes are offered?

We provide 180G, 320G, 400G Satin/Hairline, and 400G-800G Mirror finishes.

What is the delivery time?

Delivery typically takes 30-60 days, depending on the quantity ordered.

Do you accept third-party inspections?

Yes, we welcome inspections from SGS, TUV, BV, Moody, Lloyd's, and DNV.

ASTM A312 Stainless Steel Seamless Pipe 304 304L

Name: ASTM A312 Stainless Steel Seamless Pipe 304 304L
Brand: Wenzhou Sinco Steel Co., Ltd.
SKU: 842558555

Zhejiang, ChinaWenzhou Sinco Steel Co., Ltd.

US$3,000.00

1 Ton

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Type

Seamless

Technique

Cold Drawn

Model NO.

Pipe

Material

Stainless Steel

Surface Treatment

Pickled

Usage

Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose

Section Shape

Round

Wall Thickness

Sch5/Sch10/Sch40/Sch80/Sch160/Xxs 1.65mm-30.75mm

Length

5m-12m

Customize

Available

Certs

ISO 9001-2008, Ce. PED

Color

Sliver

Transport Package

Nylon Bags or Wooden Cases

Specification

1/2"-28"(DN15-DN700)/21.3mm-711mm

Trademark

SINCO

Origin

China

HS Code

7304419000

Production Capacity

2000ton/Month

Key features

Wide Material Range: Available in 304, 304L, 316, 316L, 321, 347, 410, and duplex grades.

Customizable Dimensions: Outer diameter from 4mm to 812.80mm and thickness from 0.5mm to 60mm.

Flexible Length Options: Standard 5.8-6.1m or customized length as per customer request.

Multiple Surface Finishes: Options include Satin, Hairline, and Mirror finishes with various grits.

Comprehensive Testing: Includes UT, ET, HT, RT, and hydrostatic tests according to standards.

Global Shipping Support: Worldwide shipping available via FCL/LCL with flexible freight options.

Third-Party Inspection: Accepts inspections from SGS, TUV, BV, Moody, Lloyd's, and DNV.

Certified Quality: ISO 9001-2008, ASME, and PED certified for reliability and safety.

Company profile

In-stock CapacityManagement CertificationYears of Export ExperienceFast Delivery

Wenzhou Sinco Steel Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 13 Years CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤7.14h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier is identified as a professional technical supplier serving nuclear, food processing, coal gasification, environmental protection, and aerospace industries. It offers broad customization, including sample-, design-, full-, minor-, and flexible customization, supported by CAD and documented design inputs, outputs, reviews, verification, and validation. However, it does not provide 3D software design, ODM, SDK, private mold, or well-known-brand OEM services, and reported no new products in the past year. Export experience is established, with 13 years of exporting and 71%–90% of sales from exports, but no overseas showroom, agent, branch, or offline trade-show participation. ERP, OA, CRM, SAP, digitalization, and big-data initiatives are reported. Complaint handling and corrective/preventive action lack written procedures or records, while certification, financial credibility, production capacity, and customer cases are insufficiently evidenced.

Supplier typeThe supplier explicitly identifies as a professional technical supplier and describes service orientation toward nuclear, food processing, coal gasification, environmental protection, and aerospace industries. This supports classification as an industry-focused technical supplier rather than a general trading entity.

After-Sales capabilityThe supplier has no overseas showroom, agent, branch, or offline trade-show history, and reports no written procedures or records for complaint handling or corrective and preventive actions. These explicit limitations indicate weakly documented after-sales and service-support capability.

R&D capabilityThe supplier has R&D-related design documentation and CAD capability, but reports no new products in the past year, no ODM, no SDK, no patents, and no private mold designs. The evidence shows basic design capability but also explicit limitations in recent product innovation and proprietary development.

Customization capabilityThe supplier explicitly provides customization from samples, designs, full customization, minor customization, and flexible customization, supported by CAD and documented design review, verification, and validation materials. This is direct evidence of broad customization capability, although the supplier does not offer 3D software design services or private molds.

Product Q&A

Q:What is the product range?

We supply a ONE-STOP service including fittings, flanges, valves, and stainless steel seamless pipes.

Q:What are the advantages of SINCO?

We have over 10 years of experience, strict QC before shipping, ISO/PED/TUV certification, third-party inspection acceptance, and competitive pricing.

Q:What materials are available?

We offer TP304, TP304L, TP316, TP316L, TP347, TP321, TP410, and various duplex grades.

Q:What are the outer diameter and thickness ranges?

Seamless pipes range from 4mm to 812.80mm OD and 0.5mm to 60mm thickness.

Q:Can the length be customized?

Yes, standard lengths are 5.8-6.1m, but we also provide customized lengths as per customer requests.