ASTM A192 / A192M Standard Specification for Seamless Carbon Steel Boiler Tubes for High-Pressure Service

ASTM A179 Standard Specification

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:

  • Standard and the name of material: ASTM A179 / ASME SA 179 seamless tubes.
  • Manufacturing types in cold drawn
  • Size including Diameters and minimum wall thickness

ASTM A179 / A179M – 90a(2012) Standard

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.

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.

Features

ASTMA179/ASME SA179 standard is applicable for steel pipes together with outside diameter of 1/8in-3in. (32 mm to 76.2 mm). Our rolling technology has reached the international advanced spot. JST is able to manufacture cold drawn seamless steel tubes with uniform wall depth. Their tolerance is relatively smaller standard your own.

When seamless carbon steel pipes are during the last cold drawing procedure, they will enter micro oxidization and non-oxidation heat treatment furnace for thermal treatment (Temperature is 1200℉ (650℃) if not more.). This makes the surface of cold drawn seamless steel tubes match the no oxide scale standards, and guarantees smooth surface and stable performance.

JST adopts professional hardness testing equipment to find out the hardness of seamless carbon steel pipes. The Rockwell hardness value not able to exceed 72 HRB.

Top rated program customers’ requirements, we can analyze the cold drawn seamless steel tube advertise its chemical composition meet standards. We choose one from 250 pipes or select one in a furnace to investigate. If the product analysis fails, then choose another two seamless carbon steel pipes. All elements of two steel pipes tend to be in accordance with standards, and then these pipes can be delivered.

Note:

  • Mill test certificates will be issued according to EN10204.3
  • All tubes shall be supplied as per applicable ASTM Specification.
  • The tubes Shall be Seamless and the testing shall be as per A 450 / A450M.

Steel pipe features specifications

O.D.(mm) Wall Thickness Unit(mm)
22.533.544.5566.5-77.5-88.5-99.5-101112
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 (%) of ASTM A179 Tubes

CMnP≤S≤Si≤
0.06-0.180.27-0.630.0350.0350.25

Mechanical properties of ASTM A179 Tubes

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

Tensile Strengths of ASTM A179 Tubes at Temperatures

Temp.Su
40324
100324
150324
200324
250324
300324
325324
350324
375324
400319
425299
450275
475250
500223
525198
*Temp.: metal temperature, °C, not exceeding; *Su: tensile strength, MPa.

Yield Strength of ASTM A179 Tubes at Temperatures

 Temp.Sy
40179
65168
100163
125161
150158
175156
200154
225151
250148
275144
300140
325136
350132
375128
400124
425120
450117
475114
500111
525109
*Temp.: metal temperature, °C, not exceeding; *Sy: yield strength, MPa.

Tolerance of OD and W.T(SA-450/SA-450M):

OD In (mm)+-WT In(mm)+-
<1(25.4)0.10.1≤1.1/2(38.1)0.20
11.1/2(25.438.1)0.150.15>1.1/2(38.1)0.220
>1.1/2<2(38.150.8)0.20.2
2<2.1/2(50.863.5)0.250.25
2.1/2<3(63.576.2)0.30.3
34(76.2101.6)0.380.38
>47.1/2(101.6190.5)0.380.64
>7.1/29(190.5228.6)0.381.14
The tubing sizes and thicknesses usually furnished to this specification are 1/2 in. to 7 in. [12.7 to 177.8 mm] outside diameter and 0.085 to 1.000 in. [2.2 to 25.4 mm], inclusive, in minimum wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.

ASTM A179 tubes’ usage

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

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.

Applications industry

  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry
  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals

U-Bend Fabrication Tolerances

ItemCondition (when)Tolercance
Nominal bend radius ≤ 2 x nominal ODless than or equal to 12%
Ovality2 x nominal OD < Nominal bend radius ≤ 4 x nominal ODless than or equal to 10%
Nominal bend radius > 4 x nominal OD less than or equal to 5%
Nominal bend radius ≤ 2 x nominal OD0.75 x nominal wall
Mimimum wall thickness2 x nominal OD < Nominal bend radius ≤ 4 x nominal OD0.8 x nominal wall
Nominal bend radius > 4 x nominal OD0.9 x nominal wall
Nominal bend radius ≤ 8" (200mm)+/-3/64"(1mm)
Bending Radius8" (200mm) < Nominal bend radius ≤ 16" (400mm)+/-1/16"(1mm)
Nominal bend radius >16" (400mm)+/-5/64"(1mm)
Disrance between legsMax 1/16"(1.5mm)
Wall thinning of bending areaMax 17%
Difference between leg lengths at the endsLeg 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)