DN25-50 GI Pipe Galvanized steel pipe

Galvanizing has stronger protective effect and strong corrosion resistance. The entire structure is made of zinc, forming a dense quadruple junction crystal, which forms a barrier on the steel plate and thus effectively prevents the penetration of corrosion

Product Details

PRODUCT INFORMATION

Galvanized pipe, also known as galvanized steel pipe, divided into hot dip galvanized and electric galvanized two, hot dip galvanized galvanized layer thick, with uniform coating, strong adhesion, long service life and other advantages. The cost of electrogalvanizing is low, the surface is not very smooth, and its corrosion resistance is much worse than that of hot-dip galvanized pipes.

Scope of Application

Galvanizing products are widely used in industry, agriculture, animal husbandry and fishery, energy, transportation, chemical industry, light industry, home appliances, construction, communications, national defense and other fields.

Product Parameters

Product Name	Dx51d/Dx52D/Dx53D Z81-Z120 Galvanized Pipe
Outer diameter	Round Tube	4mm-200mm
	Square Tube	1010mm-100100mm
	Rectangular Tube	1020mm-50100mm
Wall Thickness	0.6mm-6.0mm
Length	1-12m, Length can be customized
Standard	AISI, ASTM, DIN, JIS, GB, JIS, SUS, EN, etc.
Zinc Layer	Hot Galvanizing: 60-275g/m²
	Pre-galvanized: 80-275g/m²
Surface	Oiled/unoiled
	Bright Polished

Chemical Composition

Standard	Grade	C	Si	Mn	P	S	Ti
Forcold FormingChinese Standard	DX51D+Z	0.12	0.50	0.60	0.100	0.045	0.30
	DX52D+Z	0.12	0.50	0.60	0.100	0.045	0.30
	DX53D+Z	0.12	0.50	0.60	0.100	0.045	0.30
	DX54D+Z	0.12	0.50	0.60	0.100	0.045	0.30
	DX56D+Z	0.12	0.50	0.60	0.100	0.045	0.30
	DX57D+Z	0.12	0.50	0.60	0.100	0.045	0.30
Forcold FormingJapanese Standard	SGCC	0.15	0.50	0.80	0.050	0.030	0.025
	SGCD1 SGCD2	0.12 0.10	0.50 0.50	0.60 0.45	0.040 0.030	0.030 0.030	0.025 0.025
	SGCD3	0.08	0.50	0.45	0.030	0.030	0.025
	SGCD4	0.06	0.50	0.45	0.030	0.030	0.025
For StructureJapanese Standard	SGC340	0.25	0.50	1.70	0.200	0.035	0.025
	SGC400 SGC440	0.25 0.25	0.50 0.50	1.70 2.00	0.200 0.200	0.035 0.035	0.150 0.150
	SGC490	0.30	0.50	2.00	0.200	0.035	0.025
	SGC510	0.30	0.50	2.50	0.200	0.035	0.025
For StructureAISI Standard	S220GD+Z	0.20	0.60	0.70	0.100	0.045	0.025
	S250GD+Z	0.20	0.60	0.70	0.100	0.045	0.025
	S280GD+Z	0.20	0.60	0.70	0.100	0.045	0.025
	S320GD+Z	0.20	0.60	0.70	0.100	0.045	0.025
	S350GD+Z	0.20	0.60	0.70	0.100	0.045	0.150
	S550GD+Z	0.20	0.60	0.70	0.100	0.045	0.150

Mechanical Properties

Grade	Yield Strength MPa≥	Tensile Strength MPa≥	Elongation A%≥
DX51D Z/ZM/AZ/AM	240-380	270-500	22
DX52D Z/ZM/AZ/AM	140-300	270-420	26
DX53D Z/ZM/AZ/AM	140-260	270-380	30
DX54D Z/ZM/AZ/AM	120-220	260-350	36
S220GD Z/ZM/AM	220	300	20
S250GD Z/ZM/AZ/AM	250	330	19
S280GD Z/ZM/AM	280	360	18
S300GD A/AM	300	380	18
S320GD Z/ZM/AM	320	390	17
S350GD Z/ZM/AZ/AM	350	420	16
S450GD A/AM	450	480	15
S550GD Z/ZM/AZ/AM	550	550	-

Use of The Environment	Recommended Zinc Thickness
Indoor Use	Z10 or Z12 (100g/㎡or 120g/㎡)
Suburbs	Z20 and Painting (200g/㎡)
Urban or Industrial Area	Z27 (270g/㎡) or G90 (US Standard) and painted
Coastal Area	Thicker than Z27 (270g/㎡) or G90 (US Standard) and painted
Punch or Deep Drawing Application	Thicker than Z27 (270grams/㎡) or G90 (US Standard) avoid coating peeling after stamping

Surface Treatment Type	Code	Features
Chromic Acid Treatment	C	Good corrosion resistance, suitable for bare state
Chromic Acid Treatment+Oiling	S	Good corrosion resistance
Phosphoric Acid Treatment (Including Sealing Treatment)	P	Have a certain corrosion resistance, good paint performance
Phosphoric Acid Treatment (Including Sealing Treatment)+Oiling	Q	Has a certain corrosion resistance, good paint performance, prevent rust during transportation and storage
Phosphoric Acid Treatment (Excluding Sealing Treatment)	T	Have a certain corrosion resistance, good paint performance
Phosphoric Acid Treatment (Excluding Sealing Treatment)+Oiling	V	Has a certain corrosion resistance, good paint performance, and prevent rust
Oiling	O	Prevent rust during transportation and storage
No Treatment	M	Suitable for immediate painting

Size specification

Nominal inside diameter	inches	OD/ mm	WT/ mm	Min WT/ mm	Meter/weight kg	Each/weight kg
DN15 Galvanized pipe	½	21.3	2.8	2.45	1.28	7.68
DN20 Galvanized pipe	¾	26.9	2.8	2.45	1.66	9.96
DN25 Galvanized pipe	1	33.7	3.2	2.8	2.41	14.46
DN32 Galvanized pipe	1.25	42.4	3.5	3.06	3.36	20.16
DN40 Galvanized pipe	1.5	48.3	3.5	3.06	3.87	23.22
DN50 Galvanized pipe	2	60.3	3.8	3.325	5.29	31.74
DN65 Galvanized pipe	2.5	76.1	4	3.5	7.11	42.66
DN80 Galvanized pipe	3	88.9	4		8.38	50.28
DN100 Galvanized pipe	4	114.3	4		10.88	65.28

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QUALITY INSPECTION

We have won many stable customers with our excellent quality and good service. The company's products are subject to third-party testing. We hope you can become one of our good customers. Please feel free to contact us.

PACKING AND SHIPPING

In order for the products to arrive safely, we choose sturdy sea-resistant packaging or according to your needs. Professional and sturdy packaging to protect plates, coils, profiles, bars, pipes, wire rods etc. to the greatest extent and avoid bumps and scratches during transportation.

CUSTOMER FEEDBACK

We can provide one-stop services, including transportation, customs clearance and insurance, so that you can handle logistics matters more easily.

Products that are being sold at low prices We will deal with a batch of extruded inventory at ultra-low prices from time to time. The products we deal with include steel pipes, steel plates, round bars, steel bars, steel coils, profiles, rails, wires, etc. Our purpose in dealing with inventory at low prices is to quickly monetize the goods for our daily expenses of steel production. Low-priced products are given priority to regular customers. If you are interested in low-priced steel, please contact us quickly.

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