ASME SA179/A179 High Pressure Steel Boiler Tube Used on Heat Exchanger

• After-sales Service: 12 Years
• Warranty: 12 Years
• Type: Seamless
• Technique: Cold Drawn
• Material: Carbon Steel
• Surface Treatment: Varnishing
• Model NO.: bks-179
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Construction & Decoration, Special Purpose
• Section Shape: Round
• Trade Term: Fob EXW CFR CIF Fca
• Production Standard: ASTM A450/450m
• Shape: Round
• Delivery Time: 7-10 Days
• Material Grade: SA192 SA179 A106
• Transport Package: Normal Sea Worthy Package
• Specification: THICKNESS1MM~50MM
• Trademark: BKS
• Origin: China
• HS Code: 73041930
• Production Capacity: 5000ton/Month

Product Description

 

Product Introduction

ASTM A179/ASME SA179 Standard covers minimum-wall thickness, seamless cold-drawn low-carbon steel tubes for tubular heat exchangers, condensers, and similar heat transfer apparatus.
ASTM A179/ASME SA179 Tubes shall be made by the seamless process and shall be cold drawn. ASTM A179/ASME SA179 Tubes shall be heat treated after the final cold drawn pass at a temperature of 1200°F [650°C] or higher.
ASTM A179/ASME SA179 Tubes should do Product Analysis test, Hardness test, Mechanical Test, Flattening Test, Flaring Test, Hydrostatic Test or NDT Test if agreed by Client.
ASTM A179/ASME SA179 Tube Chemical Compositions

Chemical Components (%)
C	Si	Mn	P	S	Mo	Cr	V
0.06-0.18	/	0.27-0.63	≤0.035	≤0.035	/	/	/

 
ASTM A179/ASME SA179 Tube Mechanical Properties

Mechanical Properties
Tensile Strength (Mpa)	Yield Strength (Mpa)	Elongation (%)	Hardness (HRB)
≥325	≥180	≥35	≤72

 ASTM A179/ASME SA179 Tube Wall Thickness Tolerance

Seamless, Cold-Finished Tubes
Outside Diameter In. (mm)	Wall thickness Tolerance %
	Over (+)	Under (-)
1 ½ (38.1) and under	20	0
Over 1½ (38.1)	22	0

 
ASTM A179/ASME SA179 Tube Outside Diameter Tolerance

Cold-Finished Seamless Tubes
Outside Diameter In. (mm)	Permissible Variations In. (mm)
	Over (+)	Under (-)
Under 1 (25.4)	0.004 (0.1)	0.004 (0.1)
1 to 1 ½ (25.4 to 38.1), Incl	0.006 (0.15)	0.006 (0.15)
Over 11⁄2 to 2 [38.1 to 50.8], Excl	0.008 (0.2)	0.008 (0.2)
2 to 21⁄2 [50.8 to 63.5], Excl	0.010 (0.25)	0.010 (0.25)
21⁄2 to 3 [63.5 to 76.2], Excl	0.012 (0.3)	0.012 (0.3)

 
ASTM A179/ASME SA179 Tube Cut Length Tolerance

Cold-Finished Seamless Tubes
Outside Diameter, In.(mm)	Cut Length ,in.(mm)
	Over(+)	Under(-)
All Sizes	3⁄16 [5]	0 [0]
Under 2 [50.8]	1⁄8 [3]	0 [0]
2 [50.8] and over	3⁄16 [5]	0 [0]
Under 2 [50.8]	1⁄8 [3]	0 [0]
2 [50.8] and over	3⁄16 [5]	0 [0]
These permissible variations in length apply to tubes before bending. They apply to cut lengths up to and including 24 ft [7.3 m]. For lengths greater than 24 ft [7.3 m], the above over-tolerances shall be increased by 1⁄8 in. [3 mm] for each 10 ft [3 m] or fraction thereof over 24 ft or 1⁄2 in. [13 mm], whichever is the lesser.

 

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.
Preicision Seamless Tube Size List

OD (mm)	Thickness (mm)	OD (mm)	Thickness (mm)	OD (mm)	Thickness (mm)
Φ13.1	1.5-3	Φ35.9	1.5-7	Φ49.2	1.5-10
Φ19.25	1.5-5	Φ36.6	1.5-7	Φ49.5	1.5-10
Φ22	1.5-5	Φ38	1.5-8	Φ52.3	1.5-10
Φ22.2	1.5-5	Φ38.4	1.5-8	Φ53.8	1.5-10
Φ25	1.5-6	Φ40	1.5-10	Φ57	1.5-10
Φ26.3	1.5-6	Φ40.2	1.5-10	Φ59	1.5-10
Φ27	1.5-6	Φ40.9	1.5-10	Φ60	1.5-11
Φ28	1.5-6	Φ41.3	1.5-10	Φ62.5	1.5-11
Φ30	1.5-6	Φ41.6	1.5-10	Φ74	1.5-11
Φ30.25	1.5-6	Φ42	1.5-10	Φ75	1.5-11
Φ30.9	1.5-6	Φ43	1.5-10	Φ76	1.5-11
Φ31	1.5-7	Φ44.5	1.5-10	Φ89	1.5-15
Φ32	1.5-7	Φ45.8	1.5-10	Φ93	1.5-15
Φ35	1.5-7	Φ46.1	1.5-10	Φ19-Φ121	1.5-15
Φ35.5	1.5-7	Φ47.8	1.5-10

Precise size controlling, make sure the tolerance no more than +/-0.1mm
Size tolerance

OD	Standard tolerance			Special tolerance
Outer Diameter	GB/T3639	DIN2391	EN10305	O D	thickness
4mm-20mm	±0.10 mm	±0.08 mm	±0.08 mm	±0.05mm	±0.05mm
20mm-30mm	±0.10 mm	±0.08 mm	±0.08 mm	±0.08 mm	±0.08 mm
31mm-40mm	±0.15 mm	±0.15 mm	±0.15 mm	±0.10 mm	±0.08 mm
41mm-60mm	±0.20 mm	±0.20 mm	±0.20 mm	±0.15 mm	±0.15 mm
61mm-80mm	±0.30 mm	±0.30 mm	±0.30 mm	±0.20 mm	±0.20 mm
81mm-120mm	±0.45 mm	±0.40 mm	±0.40 mm	±0.30 mm	±0.30 mm

Our factory takes more than 5 suare kilometers, 15 production lines can make different sizes cold rolled or cold drawn seamless pipes.

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.


Contact us 

 
Boer King Steel Group
Tianjin Boer King Steel  Co.,Ltd
Tianjin Boer King Steel Import and export Co.,Ltd
Add: No.602,Shuanggang Development Zone,Tianjin,300350 China.