Tianjin Tianyingtai Steel Pipe Co., Ltd. is one of the most credible manufacturers and suppliers of mild steel pipe galvanized in China. Welcome to consult the quotation and import cheap mild steel pipe galvanized made in China here from our factory.

Product name: Galvanized Round Steel Pipe GI Pipe Galvanized Tube

Outer Diameter:13.7 - 609.6 mm

Thickness:1 - 50 mm

Standard:API, bs, ASTM, GB, JIS, DIN, API 5CT, API 5L, BS EN10025, ASTM A106-2006, ASTM A53-2007, GB 5310-1995, GB 3087-1999, GB/T 8163-1999, GB/T 8162-1999, JIS G3445-2006, JIS G3444-2006, DIN 2391, DIN 17175, DIN 2448, DIN 2444

Grade:16mn, A53(A,B), A106(B,C), 10#, 20#, 45#, Q235, Q345, 15crmo, 12Cr1MoV, 12CrMo, 34CrMo4, 30CrMo, St52.4, ST37.4, 16mn, A53-A369, 10#-45#, Q195-Q345, Cr-Mo alloy, ST35-ST52

Tolerance:±5%

Processing Service:Bending, Punching, Cutting

Surface:Galvanized,Black and color painting,According to clients requirement

Material:SAE1010/1020/1045,Q345,Q235,

Usage:Low pressure liquid, water, gas, oil, line pipe,Greenhouse

Length:3-12M

Certificate:API,ISO

Technique:Cold Rolled

1 hot-dipped galvanized

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20 Years of Export Expertise, Global Standard Compliance: Meet ASTM A53, EN10255, BS1387 and other regional standards, full certifications provided for hassle-free customs clearance.

Time-Tested Premium Quality: 20 years of QC optimization, zinc coating thickness up to 120μm, excellent corrosion resistance, proven stable performance in extreme climates worldwide.

Guaranteed On-Time Delivery: 100+ sizes in stock, regular orders shipped within 72h, custom orders 15% faster than industry average, priority shipping space support in peak season.

Full Customization Support: 20 years of experience serving all industries, customizable size, zinc thickness, cutting, threading, branding and packaging for both bulk and small batch orders.

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FAQ

Q1. What sizes, steel grades, and standards do your Galvanized Pipes comply with?

A: TYT Steel manufactures Gi Pipes in a wide range of outer diameters, wall thicknesses, and lengths to suit structural, plumbing, fencing, and scaffolding applications. Common standards include ASTM, BS, EN, JIS, and GB. Send your target spec and our sales team will provide a tailored quotation within 24 hours.

Q2. What is the zinc coating weight of your Gi Pipes?

A: Zinc coating weight directly affects corrosion resistance and service life. TYT Steel offers galvanizing options typically ranging from light-duty to heavy-duty grades (commonly 210–600 g/m²).

Q3. What export documents and certificates do you provide for customs clearance?

A: For smooth customs clearance, we provide commercial invoice, packing list, bill of lading, and Certificate of Origin. Material Test Certificates (MTC) are included with every shipment. Our team supports clearance in most destination ports worldwide.

Q4. What is the MOQ and shipment policy ?

A: Our minimum order quantity is 5 metric tons. All shipments are based on full container quantities to ensure safe loading, optimal freight cost, and on-time delivery.

Q5. How long is the lead time for stock and customized orders?

A: Stock Gi Pipes in 6m length (with our factory name printed in Chinese) ship within 7 days. Customized orders - including non-standard length, wall thickness, packaging, or special requirements - typically require 20–25 days depending on order quantity. Rush orders can be prioritized; share your schedule with our sales team for a confirmed delivery plan.

Q6. What warranty and after-sales support do you offer for Galvanized Pipes ?

A: TYT Steel stands behind every shipment with a Mill Test Certificate and pre-shipment inspection. Any quality claim supported by photos and third-party test evidence will be investigated and resolved within 48 hours.