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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.
Read more...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 | ● | ● | ● | ● | ● | ● | ● | ● |
Chemical Composition | C | Mn | P≤ | S≤ | Si≤ |
0.06-0.18 | 0.27-0.63 | 0.035 | 0.035 | 0.25 |
Yield Strength (Mpa) | Tensile Strength (Mpa) | Elongation (%) |
≥180 | ≥325 | ≥35 |
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 |
ASTM |
UNS NO. |
KOREA/JAPANES |
GERMAN |
BRITISH |
BELGIAN |
FRENCH |
ITALIAN |
|||||||||||||
KS/JIS Symbol |
KS/JIS Numbe |
Re |
DIN Type |
DIN |
Materiral |
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 |
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) |
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.
Term | Symbol | Explanation |
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. |
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.