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Spezilla Tube Co., Ltd.

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—— Thomas Hoover - United States

Good quality, fast delivery, Spezilla has been supplying heat exchanger tubes for our projects since 2008, we really appreciate your support!

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Spezilla supports our group very well, and now we are approved supplier of goverment, they are reliable and flexible! Spezilla always answers!

—— Jaime Arias - Argentina

Very competitive price and the tubes are well polished, we are very satisfied with Spezilla from our cooperation since year 2010.

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A179 SA179 Heat Exchanger Seamless Steel U Bend Boiler Tube Annlead & Oiled

China A179  SA179 Heat Exchanger Seamless Steel U Bend Boiler Tube Annlead & Oiled supplier
A179  SA179 Heat Exchanger Seamless Steel U Bend Boiler Tube Annlead & Oiled supplier A179  SA179 Heat Exchanger Seamless Steel U Bend Boiler Tube Annlead & Oiled supplier A179  SA179 Heat Exchanger Seamless Steel U Bend Boiler Tube Annlead & Oiled supplier A179  SA179 Heat Exchanger Seamless Steel U Bend Boiler Tube Annlead & Oiled supplier

Large Image :  A179 SA179 Heat Exchanger Seamless Steel U Bend Boiler Tube Annlead & Oiled

Product Details:

Place of Origin: CHINA
Brand Name: SPEZILLA
Certification: ISO9001:2008
Model Number: ASME SA179

Payment & Shipping Terms:

Minimum Order Quantity: Negotiation
Price: Negotiation
Packaging Details: WOODEN BOXED
Delivery Time: WITHIN 30 DAYS
Payment Terms: T/T, L/C
Supply Ability: 100 TONS / MONTH
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Detailed Product Description
Tube Shape: U Bend Tube Manufacturing: Seamless Cold Drawn
Materials No.: SA179 OD: 1/2'' - 2''
WT: 0.035'' - 0.083'' Surface: SOLUTION ANNEALED

A179 SA179 Heat Exchanger Seamless Steel U Bend Boiler Tube Annlead & Oiled

 

ASTM A179 (ASME SA179) cold drawn steel tube.
  • This is an effective way of metal corrosion, the use of the main features are the following:
    1. ASTM A179 cold drawn seamless pipe manufacturers with thick dense dense zinc layer covered in the cold drawn seamless tube surface, it can avoid cold drawn seamless tube matrix and any contact with the corrosion solution to protect the steel matrix from corrosion. In the general atmosphere, the surface of the zinc layer to form a layer of thin and dense zinc oxide surface, it is difficult to dissolve in water, so the steel matrix plays a protective role. If zinc oxide and other components of the atmosphere produce insoluble zinc salt, the anti-corrosion effect is more desirable.
    2. With iron - zinc alloy layer, combined with dense, and with the unique anti-corrosion in the marine atmosphere and atmospheric atmosphere.
    3. ASTM A179 cold drawn seamless pipe with a strong wear resistance due to the combination of solid, zinc - iron miscible.
    4. Since zinc has good ductility, its alloy layer and steel base attached to a solid, so hot-rolled parts can be cold, rolling, drawing, bending and other molding without damage to the coating.
    5. Hot-dip galvanized structural steel pipe, the equivalent of an annealing treatment, can effectively improve the mechanical properties of steel matrix to eliminate the steel forming welding stress, is conducive to the steel structure for turning.
    6. The surface of cold drawn seamless pipe after hot galvanized is bright and beautiful.
    7. Pure zinc layer is the most hot galvanized layer of galvanized layer, its nature is basically close to pure zinc, with ductility, so it is full of flexibility.

Factory test and other terms:

 

1.Hydrostatic or Nondestructive Electric Test

2.Heat Treatment: according to Standard
3.Surface Condition:According to Standard.
4.Grain Size:According to standard
5.Sampling:flattening,flaring,grain size,Marking

6.we provide bevel end,plastic cap, varnish coating, oiled or black painted to prevent rustand other packing

service.

 

Technical Requirements:

 

Straight Tubes Standard Specification For Bending:

ASME SA 213; ASTM A179 ;ASTM A210 etc

Marking: Before Bending By Marking Machine All Over The Tube Length (Bent Section After Heat Treatment Without Marking)

Note: Marking is also possible After Bending On The Straight Parts Of U-Bending Tube.

U-Bend Tubes:

-TEMA RCB 2.31 Standard Of The Tubular Exchanger Manufacturers Association (9th Edition).

-ASTM A688/ASME SA688 Standard Specification For Welded Tubes Of Austenitic Corrosion Resistant

Steel Grade Designed For Feed Water Boilers.

-ASTM B163/ASME SA163 Standard Techinical Requirements For Tubes Of Nickel And Nickel Alloy For

Condensers And Heat Exchangers.

 

Standard: ASTM A179, ASME SA179
Equivalent Standards: DIN 17175, BS 3602 Part I, NF A 49-212, NBR 5583
Material: SA179
Equivalent Material: 1010, CFS 360
Chemistry Composition
C, %
Mn, %
P, %
S, %
0.06-0.18
0.27-0.63
0.035 max
0.035 max
Mechanical Properties
Tensile Strength, MPa
Yield Strength, MPa
Elongation, %
Hardness, HRB
325 min
180 min
35 min
72 max
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
Some sizes requested by clients
OD (mm)
WT (mm)
OD (mm)
WT (mm)
OD (mm)
WT (mm)
6.35
0.91
19.05
3.404
31.75
2.769
9.53
1.22
20
2
31.75
3.7
12.7
1.22
20
2.2
32 X 22
3.404
12.7
1.245
25
2
36 X 14
1.8
12.7
1.65
25
2.77
38
2.77
15.875
1.245
25.4
1.6
38
3.2
15.875
1.65
25.4
1.651
38.1
2.41
15.875
1.651
25.4
2
38.1
2.769
15.875
2.108
25.4
2.108
38.1
2.9
15.875
2.413
25.4
2.11
38.1
3.05
15.88
1.65
25.4
2.41
38.1
3.403
16
1.2
25.4
2.7
40
1.5
16
2
25.4
2.76
44.45
2.1
19.05
1.22
25.4
2.769
50.8
2.413
19.05
1.651
25.4
2.77
50.8
3.05
19.05
2
25.4
3.048
50.8
3.404
19.05
2.1
25.4
3.15
57.15
3.048
19.05
2.108
25.4
3.4
60.3
2
19.05
2.11
31.75
2.108
63.5
3.76
19.05
2.64
31.75
2.11
63.5
8
19.05
2.769
 
 
 
 
A179  SA179 Heat Exchanger Seamless Steel U Bend Boiler Tube Annlead & Oiled

Contact Details
Spezilla Tube Co., Ltd.

Contact Person: Anna Zheng

Tel: +8615221370790

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