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ASTM A179 Heat Exchanger Tubes

ASTM A179/A179M, ASME SA179/SA179M is the standard applicable to
Seamless cold drawn low carbon steel heat exchanger and condenser tubes.

When we place a specific order for SA 179 tubing, we should include below material specifications:

The factory actual scene of ASTM A179 tubes

We can easily offer different grades of cold drawn seamless steel tubes, such as A179.

U-bend or U-shape

U-bend tubes

ASTM A179 Cold Drawn Carbon Steel Pipe

ASTM A179 Cold Drawn Carbon Steel Pipe

Cold Drawn Seamless Carbon Steel Tube ASTM A179

Cold Drawn Tube ASTM A179

ASTM A179 (ASME SA179) cold drawn steel tube

STEEL A179 BOILER PIPE DIN 2458

Heat-exchanger equipment, pipelines and pipeline components

Heat Exchanger Tubes

ASTM A179 Heat Exchanger tube

ASTM A179 Heat Exchanger tube

ASTM A179 seamless carbon steel tube

ASTM A179 seamless carbon steel tube

ASME Sec.II SA-179 seamless tube

ASME Sec.II SA-179 seamless tube

U-Bend Fabrication Tolerances:

Item Condition (when) Tolercance
  Nominal bend radius ≤ 2 x nominal OD less than or equal to 12%
Ovality 2 x nominal OD < Nominal bend radius ≤ 4 x nominal OD less than or equal to 10%
  Nominal bend radius > 4 x nominal OD  less than or equal to 5%
  Nominal bend radius ≤ 2 x nominal OD 0.75 x nominal wall
Mimimum wall thickness 2 x nominal OD < Nominal bend radius ≤ 4 x nominal OD 0.8 x nominal wall
  Nominal bend radius > 4 x nominal OD 0.9 x nominal wall
  Nominal bend radius ≤ 8" (200mm) +/-3/64"(1mm)
Bending Radius 8" (200mm) < Nominal bend radius ≤ 16" (400mm) +/-1/16"(1mm)
  Nominal bend radius >16" (400mm) +/-5/64"(1mm)
Disrance between legs   Max 1/16"(1.5mm)
Wall thinning of bending area   Max 17%
Difference between leg lengths at the ends Leg length ≤ 16' (4.88m) +1/8"(3mm)
Leg length > 16' (4.88m) +3/16"(5mm)
Deviation from plane of bend   ≤ 3/16"(1.5mm)
Flattening on bend   ≤ 10% nominal diameter
Straight leg length ≤5m +1/8"(3mm)
>5m +3/16(5mm)
Total tube length including radius ≤6m +3/16(5mm)
>6m +5/16"(8mm)

Wall thickness & Tolerance

Outside Diamter, mm
Tolerance, %

3.2≤OD<38.1

+20/-0
38.1≤OD≤76.2
+22/-0
ASTM A179 (ASME SA179) pipes and its usage

ASTM A179 seamless tubes are widely used in industries such as petroleum, chemical, medical, food, light industry, machinery, instrument, include industrial pipeline and mechanical structure parts, etc.

What is a heat exchanger used for?

A heat exchanger is a device designed to efficiently transfer or "exchange" heat from one matter to another. When a fluid is used to transfer heat, the fluid could be a liquid, such as water or oil, or could be moving air. The most well known type of heat exchanger is a car radiator.

ASTM A179 / A179M - 90a(2012) Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes

There are probably hundreds of different methods for packing a abrasion resistant pipe and Elbows, and most of them have merit, but there are two principles that are vital for any method to work prevent rusting and Sea transportation security.

Description Features Specifications Chemical Composition SA-450/SA-450M

ASTM A179 Tubes shall be made by the seamless process and shall be cold drawn. Heat and product analysis shall be performed wherein steel materials shall conform to required chemical compositions of carbon, manganese, phosphorus, and sulfur. The steel materials shall also undergo hardness test, flattening test, flaring test, flange test, and hydrostatic test.

Because of ASTM A179 grade’s temperature withstanding capabilities, it is applied to steel pipe of tubular heat exchanger, condensers and similar heat transfer equipment. Our ASTM A179 seamless tubes are used in sugar mills & distilleries, pumps and petrochemicals, cement and construction industries and steel plants. Sunny Steel can supply ASTM A179 steel tube from stock or from reputed steel mills. We also offer steel fabrication service where steel plates can go through processings like cutting, welding, bending, machining, pre-coating, pre-lined, beveling, or as you require.

This specification covers minimum-wall thickness, seamless cold-drawn low-carbon steel tubes for tubular heat exchangers, condensers, and similar heat transfer apparatus. Tubes shall be made by the seamless process and shall be cold drawn. Heat and product analysis shall be performed wherein steel materials shall conform to required chemical compositions of carbon, manganese, phosphorus, and sulfur. The steel materials shall also undergo hardness test, flattening test, flaring test, flange test, and hydrostatic test.

Note:

Features Specifications

OD(mm)  Wall Thickness Unit(mm)
2 2.5 3 3.5 4 4.5 5 6 6.5-7 7.5-8 8.5-9 9.5-10 11 12
Φ25-Φ28                
Φ32                
Φ34-Φ36                
Φ38                
Φ40                  
Φ42                  
Φ45                
Φ48-Φ60              
Φ63.5              
Φ68-Φ73                
Φ76        
Φ80        
Φ83        
Φ89        
Φ95        
Φ102        
Φ108        
Φ114          
Φ121          
Φ127          
Φ133          
Φ140            
Φ146            
Φ152            
Φ159            
Φ168            

Grade and Chemical Composition (%)

Chemical Composition C Mn P≤ S≤ Si≤
0.06-0.18 0.27-0.63 0.035 0.035 0.25

Mechanical properties

Yield Strength (Mpa) Tensile Strength (Mpa) Elongation (%)
≥180 ≥325 ≥35

Material Comparison Tables (ASTM ℃KS, JIS, DIN, BS, NBN, NF, UNI)

A 179 Seamless Cold Drawn Low-C Steel Heat Exchanger and Conderser Tubes
ASTM
UNS NO.
KOREA/JAPANES

GERMAN

BRITISH
BELGIAN
FRENCH
ITALIAN
KS/JIS Symbol
KS/JIS Numbe
Re
DIN Type

DIN

Materiral
Number

Re

B.S

B.S Grade
Re
NBN Type
NBN Grade
Re
AF
NF
Re
UNI Type
UNI
Re
ASTM A179 K01200 STBH 340 / STB 35 D3563 / G3461 St 35.4 1629

1.0309

  3606 CFS 320   D 37-2 629 (3b) TU 37 C A49-215 (3a) C 14 5462
        St 35.8 17175 1.0305 Plus
DIN 2391 Gutegard C.NBK
           

DOWNLOAD STANDARD

Even welding and smooth weld line, can be substitute for seamless tube after drawing and cold rolling.

ASTM A179 / A179M - 90a

ASTM A179 / A179M - 90a(2012) Standard Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes

SA-450/SA-450M

ASTM A450 covers carbon and low alloy steel tube. Steel samples shall be melt processed and shall either be ingot cast or strand cast

SA-450/SA-450M

OD In (mm) + - WT In(mm) + -
<1(25.4) 0.10 0.10 ≤1.1/2(38.1) 20% 0
11.1/2(25.438.1) 0.15 0.15 >1.1/2(38.1) 22% 0
>1.1/2<2(38.150.8) 0.20 0.20
2<2.1/2(50.863.5) 0.25 0.25
2.1/2<3(63.576.2) 0.30 0.30
34(76.2101.6) 0.38 0.38
>47.1/2(101.6190.5) 0.38 0.64
>7.1/29(190.5228.6) 0.38 1.14
asme sa179 seamless tubes heat treatment report
Inspection
process
Mark
Mark


Tech & Service of Seamless pipe

Seamless pipes are extensively applied for the nuclear device, gas, petrochemical, ship building and boiler industries. Seamless pipes dominates 65% of market share in Chinese boiler industry.

How to make seamless pipe(seamless pipe process)?
Hot Piercing Workshop
Piercing process
The cross roll piercing and pilger rolling process in the size range from approx. 250 to 660 mm outside diameter.
Precision cold drawn steel tube production process
Pipe weld cracks
often follow different mechanisms can be divided into two types of thermal cracking and cold cracking.
How to calculate a steel pipe and tube theoretic weight
Calculate a steel pipe?
Pipe fittings are necessary to join together pipes, or to change the direction of an existing pipe.
Pipe beveling
Pipe beveling is the process where an angle is formed between the edge of the end of a pipe or tube and a plane perpendicular to the surface.
Steel pipe cutting machine
Pipe cutting
Cutting tools have a grinding wheel piece cutting machine (also known as toothless saw), hand saw, cutter and other hand tools.
How to calculate a steel pipe and tube theoretic weight
Packing the steel pipes
There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method.

Condition on delivery:

Cold-finished/hard
(cold-finished as-drawn)

BK

No heat treatment after the last cold-forming process. The tubes therefore have only low deformability.

Cold-finished/soft
(lightly cold-worked)
BKW
After the last heat treatment there is a light finishing pass (cold drawing) With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits.
Annealed
GBK
After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum.
Normalized
NBK
The tubes are annealed above the upper transformation point in a controlled atmosphere or under vacuum.
 
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About Sunny Steel

Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.

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