What are the opening hours?

Monday 08:30 - 18:00 Tuesday 08:30 - 17:00 Wednesday 09:00 - 17:00 Thursday 09:00 - 17:00 Friday 09:00 - 17:00

Hunan Prime Steel Pipe Co.,ltd

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Changsha
Hunan Prime Steel Pipe Co.,ltd

Mainly supply customers ERW, SMLS, LSAW,SSAW steel pipes.

Hunan Prime Steel Pipe Co.,ltd is one of the most powerful subsidiaries of Shinestar Steel Group, has specialized in steel pipes manufacture and export since 1993.

11/06/2026

📈 Central Asia Steel Market 2026: Rising Prices and Growing Demand. Steel prices are moving higher across Central Asia. In early June, rebar prices in Almaty reached 328,000 tenge/ton, driven by currency fluctuations and steady demand. Central Asia is becoming an increasingly important steel market. The region consumed an estimated 11.5–12.5 million tons of steel in 2025, with demand continuing to grow. Kazakhstan and Uzbekistan remain the largest consumers, while local production still falls short of market needs, leaving significant room for imports. 👇 [https://www.primesteeltube.com] 🔥

10/06/2026

Why do some heat exchanger tubes last over 10 years while others fail much sooner? The difference often lies in manufacturing quality. At Hunan Great Steel Pipe Co., Ltd, we focus on every critical step of stainless steel heat exchanger tube production: 🔹 Premium materials (304L, 316L, Duplex) 🔹 Precision forming & welding 🔹 Professional heat treatment 🔹 Surface passivation 🔹 Strict quality inspection & testing
The result: ✅ Enhanced corrosion resistance ✅ Reliable pressure performance ✅ Longer service life ✅ Lower maintenance costs
Looking for high-quality stainless steel heat exchanger tubes for demanding industrial applications? Contact Hunan Great Steel Pipe Co., Ltd today. 👇 [https://www.primesteeltube.com] 🔥

09/06/2026

Another successful delivery for an international pipeline project. 🌍 Hunan Great Steel Pipe supplied 1,720 tons of API 5L PSL1 Grade B LSAW Steel Pipes, manufactured to meet the client's project requirements. ✔ API 5L PSL1 Gr.B ✔ OD: 406.4 mm ✔ WT: 9.53 mm. From forming and welding to final inspection, every pipe was produced under strict quality control to ensure compliance, reliability, and performance. Working closely with the client, we also provided recommendations on NDT inspection and anti-corrosion solutions to support long-term pipeline integrity. 👇 [https://www.primesteeltube.com] 🔥

08/06/2026

SA-213 T91 or SA335 P91 — Which alloy steel pipe is right for your project? ⚙️
✔ SA-213 T91 alloy steel pipe
Ideal for boiler tubes, superheaters, and heat exchangers.
Optimized for thin-wall applications.
Excellent steam oxidation resistance and weldability.
Focused on short-term high-temperature performance.
✔ SA335 P91 alloy steel pipe
Designed for main steam pipelines and headers.
Ideal for thick-wall, high-pressure systems.
Superior long-term creep strength and stress resistance.
Built for demanding power and energy projects.
Need help selecting the right alloy steel pipe for your application? Contact our team for professional technical support and customized solutions. 👇 [https://www.primesteeltube.com] 🔥

05/06/2026

Could you please recommend the heat exchanger tube size selection by application in the Industrial project?
1)HVAC & Refrigeration: OD: 9.52 mm – 19.05 mm. Designed for Thin wall thickness for higher heat transfer efficiency.
2)Food & Pharmaceutical Industry: OD: 12.7 mm – 25.4 mm. Designed for a smooth internal surface and sanitary finish.
3)Chemical Processing: OD: 19.05 mm – 38.1 mm. Designed for Medium to heavy wall thickness for corrosion resistance.
4)Oil & Gas Industry: OD: 25.4 mm – 50.8 mm. Designed for Higher wall thickness for pressure resistance.
5)Power Generation: OD: 19.05 mm – 38.1 mm. Designed for high-temperature and high-pressure service.
If you have customized services, contact me to know more. Do you want to know more about the material selection? click 👇 [https://www.primesteeltube.com] 🔥

04/06/2026

Casing vs. Tubing: Same Standard, Different Mission 🎯 Both fall under API 5CT, but here's the breakdown:
🛡️ Casing = The well's backbone. Installed during drilling to stabilize the borehole and isolate formations.
⛽ Tubing = The production highway. Runs inside casing to bring hydrocarbons to the surface. Replaceable.
Threading tells the story too: 🔩 Casing → BTC, LTC, STC 🔧 Tubing → EUE, NU
But we don't stop at standard compliance. We analyze your downhole reality—pressure, corrosion, temperature—and recommend the precise grade, connection, and precautions your project demands.
Standard product. Engineered thinking. 🔥 Get casing that actually fits your well: [https://www.primesteeltube.com] 🔥

03/06/2026

Looking for NDE-tested and pressure-tested steel pipes? ⚙️ Hunan Great Steel Pipe offers ASTM A106/A53 Grade B seamless steel pipes (48.26 mm × 7.14 mm × 6 m) that are fully inspected and tested to meet the demanding requirements of energy transportation projects.
Q: Why does NDE matter?
✔ Detects defects without damaging the pipe
✔ Enhances pipeline safety and reliability
✔ Supports quality control and code compliance
✔ Reduces maintenance and operational risks
✔ Optimizes lifecycle costs and project performance
👇[https://www.primesteeltube.com] 🔥

02/06/2026

🌍 Our API 5L GR.B Piping Spools (Pipe Welded with Fl**ge) are engineered for strength, reliability, and efficient installation in pipeline systems. ⚙️ ✔ Product: Piping Spool (Pipe Welded with Fl**ge) ✔ Standard: API 5L ✔ Grade: GR.B ✔ Size: 18” OD × SCH40
Q1: What fabrication services do you provide?
A: We offer cutting, welding, beveling, threading, grooving, bending, spool fabrication, and fl**ge.
Q2: Can fabrication pipes be customized?
A: We can manufacture according to project drawings, technical specifications, or customer requirements.
Q3: What types of pipe ends are available?
A: We can provide plain ends, beveled ends, threaded ends, grooved ends, or fl**ged ends.
👇[https://www.primesteeltube.com] 🔥

01/06/2026

Precision threading starts with precision control. ⚙️ High-quality pipe threads depend on three critical factors:
✔ Thread Dimension – Ensures perfect fitting compatibility
✔ Pitch – Delivers secure and reliable connections
✔ Thread Angle – Improves load-bearing performance and service life
At Hunan Great Steel, every threading process is performed under strict quality standards to guarantee accuracy, connection integrity, and long-term reliability. Precision in every thread. Quality in every connection. 👇[https://www.primesteeltube.com] 🔥

29/05/2026

Protecting industrial facilities with reliable fire protection solutions. 🔥⚙️ Hunan Great Steel successfully supplied fire sprinkler steel pipe systems for a garments factory project in Europe.
✔ Products Details: Grooved seamless steel pipes, ductile iron fittings, flexible & rigid couplings, and malleable fittings
✔ Standards: ASTM A53 / A795 / A106 / EN10216-1
✔ Certifications: UL Listed • FM Approved • ISO Certified
✔ Surface Options: Red painted, hot dip galvanized, black painted
Trusted quality. Global delivery. Professional fire protection solutions. 👇[ https://www.primesteeltube.com] 🔥

Address

Longchamp International Mansion, No. 9 Xiangfu Road
Changsha

Opening Hours

Monday	08:30 - 18:00
Tuesday	08:30 - 17:00
Wednesday	09:00 - 17:00
Thursday	09:00 - 17:00
Friday	09:00 - 17:00

Website

http://www.primesteeltube.com/

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