Boiler Air-Prehater Tube ASTM A423 Gr1 Seamless Corten Steel Aph Tube

• After-sales Service: Support
• Warranty: Support
• Type: Seamless
• Technique: Hot Rolled
• Material: Carbon Steel
• Surface Treatment: Black
• Model NO.: A423 Gr1
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Construction & Decoration, Special Purpose
• Section Shape: Round
• Application: Fluid Pipe, Boiler Pipe
• Length: 5.8m, 6.4m, 6m, 11.8m, 12m, or as Required
• Thickness: 1-120 mm
• Delivery Time: 8-14 Days
• Processing Service: Bending, Welding, Decoiling, Punching, Cutting
• Transport Package: Standard Seaworthy Packing
• Trademark: YF STEEL
• Origin: Tianjin, China
• Production Capacity: 10000 Tons Per Month

Product Description

Product Introduction

Carbon Seamless Steel Pipe / tubes
ASTM A423 /ASME SA423 Grade 3 Steel Tube For  AIR PREHATER is a thin-walled tube with large and small arcs continuously tangent and corrugated inside and outside. The three-dimensional movement outside the tube, so the degree of disturbance is more intense, even if the fluid flow rate is very low, it can make it into a turbulent state, and at the same time, the thin tube wall has a small temperature gradient, which greatly reduces the thermal resistance of the tube wall and improves the heat transfer inside and outside the tube. Coefficient, so that the overall heat transfer coefficient is improved.

Product Specification

Standard	API, ASTM, BS, DIN, GB, JIS
Outer Diameter	21.3mm-660mm
Wall Thickness	0.5mm-20mm
Dia Tolerance	Control with in the standard, OD:±1%, WT:±10%
Materials	10#, 20#, 45#, Q235, Q345, Q195, ASTM A53/ A106/ A178/ A333/ A335, SAE1018, SAE1020, SAE1045, ST37, ST37-2, ST35, ST45, ST52, ST35.8, 19Mn5, 16Mn, SS400, Q345B, 27SiMn, 20Cr, 40Cr, 12CrMo, 15CrMo, 30CrMo, 35CrMo, 42CrMo
Zinc coating	Pre galvanized steel pipe: 60-150g/m² Hot dipped galvanized steel pipe: 200-400g/m²
Type of pipe coating	Epoxy powder
Inspection	ISO, BV, SGS, MTC
Packing	Steel strip packed. Standard Export Seaworthy Package. Suit forall kinds of transport,or as required
Application	Accessorize, machinery parts, structure steel pipe, piling pipe, sewage and clear water transportation, Line pipe for petroleum and so on
MOQ	5metric ton, sample order accepted
Shipment time	Within 7-10 workdays after receiving deposit or L/C
Market	Southeast Asia, Middle East, Africa, Europe, South American and so on

Chemical Composition And Mechanical Properties

Chemistry Composition

	C, %	Mn, %	P, %	S, %	Si, %	Cu, %	Cr, %	Ni, %	Mo, %	Sb, %
ASTM A423 Gr.1	0.15 max	0.55 max	0.06-0.16	0.060 max	0.10 max	0.20-0.60	0.24-1.31	0.2-0.7	*	*
S-TEN1	0.14 max	1.60 max	0.025 max	0.025 max	0.55 max	0.25-0.50	-	0.50 max	-	0.15 max
09CrCuSb	0.12 max	0.35-0.65	0.030 max	0.020 max	0.17-0.37	0.25-0.45	0.70-1.10	-	-	0.04-0.10

Mechanical Properties

	Tensile Strength, Mpa	Yield Strength, Mpa	Elongation, %
ASTM A423 Gr.3	≥415	≥255	≥30
S-TEN1	380 min	230 min	35 min
09CrCuSb	390-550	245 min	30 min

Outside Diameter & Tolerance

Outside Diameter, mm	Tolerance, mm
3.2≤OD<25.4	±0.10
25.4≤OD≤38.1	±0.15
38.1<OD<50.8	±0.20
50.8≤OD<63.5	±0.25
63.5≤OD<76.2	±0.30
76.2	±0.38

Wall thickness & Tolerance

Outside Diamter, mm	Tolerance, %
3.2≤OD<38.1	+20/-0
38.1≤OD≤76.2	+22/-0

Parameter

Steel	09CrCuSb	1Cr18Ni9	Corten	S-TEN1
Corrision Speed	7.3	21.7	63	27.4
Times	1	2.97	8.63	3.75

Length: 6050mm; 6096mm; 7315mm; 11800mm; 12000mm; and so on.
Max developed length: 30 meters, also U bending can be offered.

Popular Dimensions

OD (mm)	WT (mm)	Length (mm)	OD (mm)	WT (mm)	Length (mm)
76.2	3.0	3000	60.3	3.0	3000
60.3	3.0	4800	60.3	3.0	3000

Product Display

We can produce different sizes, thicknesses, widths and materials according to your requirements

Product Test
We will control the quality from part of material steel pipe, each pipe produced will be have it is own identify label, quality will check the chemical component and physical property and then provide material test certificate. Size dimension will be checked and show pictures to customer to guarantee all goods will be meet requirement.

Packaging and Shipping

1) Packaging: 3 layers of packing. Inside is craft paper, Middle is water plastic film and outside GI steel sheet to be covered by steel strips with lock, with inner coil sleeve or as customers' requirements.
2) Shipping: We have long-term cooperation with many experienced shipping companies and will find the most suitable mode of transportation for you.
3) Trade terms: FOB/CIF/CFR
4) Shipping port: Qingdao/Tianjin/Shanghai
5) Shipment: A: Length: ≤6m, loaded in 20GP Container. B: Length: ≤12m, loaded in 40GP Container.
Remark: Size of 20GP Container (inside :5898*2352*2393mm); Size of 40GP Container (inside:12032*2352*2393mm); Size of 40HQ Container (inside:12032*2352*2698mm).
6) Delivery time: Normal size: 7-15days send from warehouse directly. Special size:15-30days custom made for you.

FAQ

Q1:Can you send samples?
A:Of course, we can provide customers with free samples and express shipping service to all over of the world.
Q2:What product information do I need to provide?
A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.
Q3:It's my first time to import steel products, can you help me with it?
A:Sure,we have agent to arrange the shipment, we will do it together with you.
Q4:What ports of shipment are there?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.
Q5:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
Q6:What is your terms of payment ?
A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.
Q7:Do you provide custom made Products service?
A: Yes,if you have your own design , we can produce according to your specification and drawing.
Q8:What are the certifications for your products?
A:We have ISO 9001, MTC, third parties' inspections are all available such SGS, BV ect.
Q9:How long does your delivery time take?
A:In general, our delivery time is within 7-15 days, and may be longer if the quantity is extremely large or special circumstances occur.
Q10: How many countries you already exported to?
A:We have exported to America, Canada, Brazil, Chile, Colombia, Russia, Ukraine, Thailand, Myanmar, Vietnam, India, Kenya, Ghana,somalia and other African countries.Our export experience is rich, we familiar with different market demands, can help customers avoid a lot of trouble.
Q11:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q12:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed and customers can appoint third parties to inspect the products before loading too.
Q13:How to pack the products?
A: Standard export sea-worthy packaging, the inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion and various climate changes during ocean transportation.
Q14:What is your working time?
A:In general, our online service time is Beijing time: 8:00-22:00, after 22:00, we will reply to your inquiry in the coming working day.