Standard sizes galvanized steel round tube manufacturers

Short Description:

Galvanized steel round tube standard sizes according to GB/T3091, GB/T13793, ASTM A500, ASTM A53, ASTM A795, BS1387, EN10219, EN10255, JIS G3444, ISO65 and other equivelent stanards.

MOQ Per Size: 2 tons

Min. Order Quantity: One container

Production Time: usually 25 days

Delivery Port: Xingang Tianjin Port in China

Payment Terms: L/C,D/A,D/P,T/T

Brand: YOUFA

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Galvanized Carbon Steel Pipes

one-stop supply types of galvanized pipes and fittings

Different Types of Galvanized Steel Round Tubes

Hot Dip Galvanized Steel Pipes

Pre Galvanized Steel Pipes

Construction Galvanized Pipes,

Greenhouse Structural Galvanized Pipes,

Structural Galvanized Steel Pipes,

Water and Natural Gas Delivery Steel Pipes,

Fire Sprinkler Galvanized Pipes,

Solar Structural Steel Pipes

Pre Galvanized Structural Pipes,

Greenhouse Structural Galvanized Pipes,

Pre Galvanzied Conduit Steel Pipes

What is Youfa Advantages

1. Reputation and Experience: Youfa is one of the largest and most well-known galvanized steel tube manufacturers in China, with a solid reputation built over many years in the industry. Youfa galvanized pipes, occupying 30% of the Chinese market

2. Quality Assurance: Youfa adheres to strict quality control measures and standards. Youfa brand galvanized pipes with qualified zinc coating are known for their durability, corrosion resistance, and long lifespan.

3. Wide Range of Products: Youfa offers a wide variety of galvanized pipes in different sizes and specifications, catering to various needs and applications.

4. Advanced Technology: Youfa galvanized factories utilizes advanced manufacturing techniques and equipment, ensuring high precision and consistency in their products.

5. Environmental Responsibility: Youfa places a strong emphasis on environmental protection, employing eco-friendly manufacturing processes and materials.

Gi Pipes Factories

Galvanized Pipes Output (Tons/Year)

Galvanization Production Lines

Galvanized Pipes Export (Tons/Year)

6. Competitive Pricing: Despite their high quality, Youfa's products are competitively priced, providing good value for money.

7. Global Reach: Youfa has an extensive distribution network, making their products accessible to customers worldwide.

8. Customer Service: The company is known for its excellent customer service, offering support and assistance throughout the purchasing process and beyond.

Galvanized Tube Steel Grade and Standards

GALVANIZED TUBES CARBON STEEL GRADE MATERIAL
Standards	ASTM A53 / API 5L	ISO65	JIS3444	BS1387 / EN10255	GB/T3091
Steel Grade	Gr. A		STK290	S195	Q195
	Gr. B	√	STK400	S235	Q235
	Gr. C		STK500	S355	Q355

Hot Dip Galvanized Steel Tubes

The hot-dip galvanizing process involves immersing steel into a vat of molten zinc. The zinc bonds with the iron to form a protective layer that prevents rust and corrosion. Hot-dip galvanized pipes have a wide range of applications, from residential to industrial. They come in various shapes and sizes and can be used for new construction as well as repairs. Steel tube galvanized zinc coating thickness 30um at average. If properly maintained, hot-dip galvanized pipes can last for decades, making them a cost-effective choice for homeowners and businesses alike.

Pre Galvanized Steel Tubes

Pre-galvanized pipe is a type of steel pipe that has been coated with a zinc-based metal layer before manufacturing. The steel pipe is roll-formed, welded if necessary, and then shaped into the desired form through a set of high-speed rollers. The zinc coating provides excellent corrosion resistance to the base metal, making this type of pipe commonly used in construction and other applications requiring durable surface treatment. However, due to the manufacturing method, the weld seam inside the pipe cannot be coated with zinc spray, so rusting may still occur in that area.

- Tianjin Youfa International Trade Co., Ltd

Galvanized Steel Tube Sizes

Hot dip galvanized steel tube sizes chart:

DN	OD	OD (mm)	ASTM A53 GRA / B		ASTM A795 GRA / B		OD (mm)	BS1387 EN10255
DN	OD	OD (mm)	SCH10S	STD SCH40	SCH10	SCH30 SCH40	OD (mm)	LIGHT	MEDIUM	HEAVY
MM	INCH	MM	(mm)	(mm)	(mm)	(mm)	MM	(mm)	(mm)	(mm)
15	1/2”	21.3	2.11	2.77	-	2.77	21.3	2	2.6	-
20	3/4”	26.7	2.11	2.87	2.11	2.87	26.7	2.3	2.6	3.2
25	1”	33.4	2.77	3.38	2.77	3.38	33.4	2.6	3.2	4
32	1-1/4”	42.2	2.77	3.56	2.77	3.56	42.2	2.6	3.2	4
40	1-1/2”	48.3	2.77	3.68	2.77	3.68	48.3	2.9	3.2	4
50	2”	60.3	2.77	3.91	2.77	3.91	60.3	2.9	3.6	4.5
65	2-1/2”	73	3.05	5.16	3.05	5.16	76	3.2	3.6	4.5
80	3”	88.9	3.05	5.49	3.05	5.49	88.9	3.2	4	5
90	3-1/2"	101.6	3.05	5.74	3.05	5.74	101.6	-	-	-
100	4”	114.3	3.05	6.02	3.05	6.02	114.3	3.6	4.5	5.4
125	5”	141.3	3.4	6.55	3.4	6.55	141.3	-	5	5.4
150	6”	168.3	3.4	7.11	3.4	7.11	165	-	5	5.4
200	8”	219.1	3.76	8.18	4.78	7.04	219.1	-	-	-
250	10”	273.1	4.19	9.27	4.78	7.8	273.1	-	-	-

Pre galvanized steel tube sizes chart:

OUTSIDE DIAMETER
ROUND SECTION	SQUARE SECTION	RECTANGULAR SECTION	OVAL SECTION
11.8, 13, 14, 15, 16, 17.5, 18, 19	10x10, 12x12, 15x15, 16x16, 17x17, 18x18, 19x19	6x10, 8x16, 8x18, 10x18, 10x20, 10x22, 10x30, 11x21.5, 11.6x17.8, 12x14, 12x34, 12.3x25.4, 13x23, 13x38, 14x20, 14x42, 15x30, 15x65, 15x88, 15.5x35.5, 16x16, 16x32, 17.5x15.5, 17x37, 19x38, 20x30, 20x40, 25x38, 25x30, 25x40, 25x50, 27x40, 30x40, 30x50, 30x60, 30x70, 30x90, 35x78, 40x50, 38x75, 40x60, 45x75, 40x80, 50x100	9.5x17, 10x18, 10x20, 10x22.5, 11x21.5, 11.6x17.8, 14x24, 12x23, 12x40, 13.5x43.5, 14x42, 14x50, 15.2x23.2, 15x30, 15x22, 16x35, 15.5x25.5, 16x45, 20x28, 20x38, 20x40, 24.6x46, 25x50, 30x60, 31.5x53, 10x30
20, 21, 22, 23, 24, 25, 26, 27, 27.5, 28, 28.6, 29	20x20, 21x21, 22x22, 24x24, 25x25, 25.4x25.4, 28x28, 28.6x28.6
30, 31, 32, 33.5, 34, 35, 36, 37, 38	30x30, 32x32, 35x35, 37x37, 38x38
40, 42, 43, 44, 45, 47, 48, 49	40x40, 45x45, 48x48
50, 50.8, 54, 57, 58	50x50, 58x58
60, 63, 65, 68, 69	60x60
70, 73, 75, 76	73x73, 75x75