Product Details
SA 179 Tubes/ASTM A179 Tubing for Heat Exchanger
ASTM A179 (SA179) standard specification covers seamless cold drawn low carbon steel
pipe, for tubular heat exchanger, condensers and other similar heat
transfer equipment. The ASTM A179 tube covers the OD from 1/8" to
3", which is 3.2mm to 76.2mm. Other diameters and thickness smaller
than the specified sizes also applicable to this standard, but
mechanical properties is not applicable for the size smaller than
1/8" and 3.2mm, or thickness smaller than 0.015 inch and 0.4mm. In
most cases, ASTM A179 replaces ASTM A178 in China.
- Manufacture: tubes shall be made by the seamless process and shall be cold
drawn.
- Heat Treatment: tubes shall be heat treated after the final cold draw pass at a
temperature of 1200°F [650°C] or higher.
- Delivery Condition: pickling, nitrogen protection surface or bright annealing. Some
south korea mills buy mother tubes and only do bright annealing
heat treatment in their country, because pickling is a must, but
many countries don't allow this process. And nitrogen protection is
now popular in China, the surface is similar bright apperance, but
low cost.
- Inspection & Test: chemistry composition analysis, tensile test, flattening test,
flaring test, hardness test, NDT, surface inspection and dimension
check.
- Optional Test: flange test.
ASTM Q179/SA179 TUBES MECHANICAL PROPERTIES
Seamless&Welded | Tensile Strength | Yield Strength |
ASTM A179 | 325MPa | 180MPa |
ASTM Q179/SA179 TUBES CHEMICAL COMPOSITION
Element | Carbon,C | Manganese,Mn | Ohosphorous,P | Sulfur,S |
ASTM A179 | 0.06~018% | 0.27-0.63% | 0.035% | 0.035% |
Testing Requirements for seamless ASTM Q179/SA179 carbon steel pipe
(1)Hydrostatic Testing:
Inspection test pressures produce a stress in the pipe wall equal
to 60% of specified minimum yield strength (SMYS) at room
temperature. Maximum pressures are not to exceed 2,500 psi for NPS
3 and under, and 2,800 psi for the larger sizes. Pressure is
maintained for no less than 5 seconds.
(2)Mechanical Tests:
Tensile Test: Either transverse or longitudinal are acceptable for
NPS 8 and larger
Tensile tests smaller than NPS 8: Longitudinal testing only
Flattening Test: NPS 2 and larger
Bending Test (cold): NPS 2 and under
MATERIAL SPECIFICATION REQUIREMENTS FOR A SPECIFIC ORDER
- 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
- Quantity in meters, feet, or pieces.
- Size including Diameters and minimum wall thickness
- Length per pieces (Random or fixed length shall be specified)
- Chemical composition (optional)
CARBON STEEL PIPE STANDARD AND GRADES(SEAMLESS AND WELDED)
- ASTM A106 Gr. B in Seamless (Differences between ASTM A106 and A53
pipe)
- ASTM A53 Gr. A, B in Seamless, Welded ERW, and Zinc coated,
hot-dipped galvanized steel pipe
- ASTM A179 Gr. C in Seamless (For seamless cold drawn low carbon
steel heat-exchanger and condenser tubes)
- ASTM A192 (For seamless carbon steel boiler tubes for high-pressure
service)
- ASTM A252 (For welded and seamless steel pipe piles)
- ASTM A333 GR. 1, 2, 3, 4, 5, 6 (For seamless and welded steel pipe
for low-temperature service and other applications with required
notch toughness)
- ASTM A134 and ASTM A135 (For electric resistance welded ERW steel
pipes)
- API 5L Pipe, ISO 3183 / API 5L Gr. A, B, X42, X46, X52, X56, X60,
X65, X70, X80 in seamless and welded (LSAW, SSAW, ERW) steel pipe,
for petroleum and natural gas industries, steel pipe for pipeline
transportation systems.
- DIN 2440 seamless and welded steel pipes applies to medium-weight
tubes suitable for screwing. (DIN2444 Zinc coated steel tubes, for
hot galvanizing)
- CSZ Z245 Seamless and ERW welded pipe (low-frequency electric
welded pipe excluded), SAW steel pipe that intended for oil and gas
pipeline systems.
- NBR 8261 Cold-Drawn, Cold-form, welded steel pipe, in circular
cross-section, square or rectangular, applied to structural
purposes.
- AWWA C-200 for steel water pipe
More standards material available in case special requirement
Company Profile
Qingdao Teste Metal Products Co., Ltd. is a professional
manufacturer with more than 20 years of experience in manufacturing
stainless steel and carbon steel establised in 2018. Our location
is in Wuxi - the largest stainless-steel processing center in
China.
We have our own factory and provide a one-stop service for cutting,
forming and surface processing of metal products.
Also we cooperate with TISCO,CHENGDE,TSINGSHAN,DELONG,YONGJIN,
HONGWANG,JISCO,QPSS, POSCO-ZPSS and ESS.