Can I get some samples?

We are glad to provide free samples to you, but we do not offer the freight.

What is your after-sale service?

We provide after-sale service and offer 100% guarantee on our products.

API 5L ASTM A106 Grade B 4 Inch Seamless Steel Pipe

Name: API 5L ASTM A106 Grade B 4 Inch Seamless Steel Pipe
Brand: Zhejiang Zhong Ding Iron and Steel Co., Ltd.
SKU: 1967730235

Zhejiang, ChinaZhejiang Zhong Ding Iron and Steel Co., Ltd.

US$780.00

1-99 Tons

US$680.00

100-999 Tons

US$650.00

1,000+ Tons

Sample price:US$6.00/piece.Request sample

Product profile

Type

Welded/Seamless Tube

Technique

Hold Rolled/Cold Rolled

Material

Carbon Steel

Surface Treatment

Hold Rolled/Cold Rolled

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

Transport Package

Standard Packing

Specification

customer's requirement

Trademark

zhongding

Origin

China

Production Capacity

9500 Ton/Tons Per Week

Key features

Wide Size Range: Outer diameter from 17mm to 914mm with various wall thicknesses and schedules available.

Customizable Length: Available in single/double random lengths or customized to customer's actual request.

Multiple Surface Treatments: Options include bare, painting black, varnished, galvanized, and anti-corrosion coatings like 3PE.

Comprehensive Testing: Includes pressure test, flaw detection, eddy current, hydro static testing, and chemical property inspection.

Third-Party Inspection: Accepts SGS, BV, and MTC for quality verification and assurance.

Flexible Packaging: Bundled with steel strips, wooden cases, or custom packaging according to customer requirements.

Global Shipping Terms: Supports FOB, CFR, FAS, FCA, and DES delivery terms for international trade.

Sample Availability: Free samples provided, though freight costs are not covered by the supplier.

Company profile

Fast DeliveryLow MOQCustomization from SamplesR&D Capabilities

Zhejiang Zhong Ding Iron and Steel Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 4 Years CertifiedNearest Port: Ningbo PortAverage Response Time: ≤6.90h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryZhejiang Zhong Ding Iron and Steel Co., Ltd. is a China-based limited trading company established in 2020 with 14 employees and a Ningbo, Zhejiang location. The supplier reports large-scale steel production integration, including 8 hot-rolling piercing lines and 30 cold-rolling units, with a stated production range beginning at 10 mm and extending to 219 mm. It has exported for four years, with exports representing 71%–90% of total sales, and has attended the Dubai Fair. The supplier reports new-product activity and sample-based customization, but has only one R&D engineer and does not provide ODM, well-known-brand OEM, or SDK services. No overseas agents, branches, warehouse, showroom, or in-stock service capability are reported. Financial records are referenced for 2022–2024, but no financial results are provided. Evidence is insufficient to confirm certifications, documented quality assurance, raw-material traceability, or customer cases.

Supplier typeThe supplier is identified as a trading company and limited company, while its description states that it integrates production, sales, and trade. Its registered location is Ningbo, Zhejiang, China, and its business scope includes technology import and export, import and export agency, and goods import and export subject to applicable approvals.

R&D capabilityThe supplier reports one R&D engineer and new products launched during the past year. It does not provide ODM services, well-known-brand OEM services, or SDK availability, indicating some product-development activity but limited documented breadth of innovation services.

Production capacityThe company description reports 8 hot-rolling piercing production lines and 30 cold-rolling units, with a stated production range of 10 mm to 219 mm. However, the supplier also reports no in-stock capacity, while outsourcing procedures and manufacturing-capacity contracts are unknown; the stated production infrastructure nevertheless provides explicit evidence of production capability.

Customization capabilityThe supplier explicitly offers customization from samples and reports product R&D activity. At the same time, it does not offer ODM services, so the evidence supports sample-based customization but not broader independent design or ODM capability.

Product Q&A

Q:Who are we?

We are based in Zhejiang, China, start from 2020,sell to Domestic Market(20.00%),North America(10.00%),South America(10.00%),Eastern Europe(10.00%),Southeast Asia(10.00%),Africa(10.00%),Oceania(5.00%),Mid East(5.00%),Eastern Asia(5.00%),Western Europe(5.00%),Northern Europe(5.00%),Southern Europe(5.00%). There are total about 11-50 people in our office.

Q:How can we guarantee quality?

Always a pre-production sample before mass production; Always final Inspection before shipment;

Q:What can you buy from us?

Seamless Steel Pipe/ Welded Steel Pipe,Hot Rolled Plate/ Color Steel Plate,Round Bar,etc.

Q:Why should you buy from us not from other suppliers?

Zhongding Steel is a diversified private enterprise with business covering stainless steel, carbon structure steel, alloy steel, etc. And established a number of joint-venture steel production lines with some well-known steel companies.

Q:What services can we provide?

Accepted Delivery Terms: FOB,CFR,FAS,FCA,DES; Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF; Accepted Payment Type: T/T,L/C,D/P D/A; Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian.