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Help CenterFerritic Steel Tube TP405|U Bend Ferritic Steel Tube ASTM A268
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U Bend Ferritic Steel Tube ASTM A268 TP405 Chemical composition mass in %
Material grade |
Norm |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
Ti |
others |
max. |
max. |
max. |
max. |
max. |
|||||||
1.4002 |
EN 10297-2 |
0,080 |
1,00 |
1,00 |
0,040 |
0,030 |
12,00 - 14,00 |
Al 0,1 – 0,3 |
|||
TP405 |
ASME SA / ASTM A 268 |
0,080 |
1,00 |
1,00 |
0,040 |
0,030 |
11,50 - 14,50 |
0,50 |
Al 0,1 – 0,3 |
U Bend Ferritic Steel Tube ASTM A268 TP405 Mechanical properties and heat treatment
Material grade |
Norm |
Rp 0,2 MPa |
Rp 1,0 MPa |
Rm MPa |
A |
Hardness |
Heat treatment |
min. |
min. |
min. max. |
min.% |
HRB max. |
|||
1.4002 |
EN 10297-2 |
210 |
220 |
400 |
10 |
Annealed |
|
TP405 |
ASME SA / ASTM A 268 |
205 |
415 |
20 |
95 |
Annealed |
Rp 0,2 = Rotation Rp 1,0 = Yield Strength Rm = Tensile Strength A = Elongation
U Bend Ferritic Steel Tube ASTM A268 TP405 Tolerances
OD - Tube |
OD |
WT |
Special WT |
ID |
ab Ø4,55 mm |
±0,050 mm |
±0,150 mm |
±0,100 mm |
X |
ab Ø9,53 mm |
±0,050 mm |
±0,100 mm |
±0,080 mm |
±0,050 mm |
ab Ø30,00 mm |
±0,100 mm |
±0,150 mm |
±0,050 mm |
U-Bend Tubes are widely used in Heat Exchanger Systems. Heat-Exchanger Equipment on the basis of Seamless Ferritic U-Tubes and Welded Ferritic U bend Tube is essential in strategically important and critical fields ---Nuclear And Petrochemical Machine Building.
ASTM A268 ASME SA268 S40500 405 Ferritic Steel 1.4002 is a 12% chromium steel, designed to be used in the as-welded condition. Unlike other grades in the 12% chromium category, 405 is not susceptible to extensive hardening through air cooling from high temperatures. Commonly used for annealing boxes, steam nozzles, quenching racks, partitions, and other fabrications that cannot be annealed after welded.
U Bend Ferritic Steel Tube ASTM A268 TP405 is soft and ductile, TP405 can be easily machined using most standard practices. Experienced machinists comment that 405 machines are similar to 4130 alloy steel. 405 can be easily spun, drawn, and formed using common forming procedures.
U Bend Ferritic Steel Tube ASTM A268 TP405 can be welded using shielded fusion and resistance techniques. Oxyacetylene welding is not recommended. Use 405 Cb electrodes that contain columbium rather than aluminum to control hardening. Post-weld annealing will maximize ductility. Soak at 1500-1600°F (817-871℃) and then quickly increase to 1900-2050°F(1038-1121℃). Do not remain at this temperature as the result will be excessive grain growth. Do not work below 1500℉(816℃). After forging, the air cool and anneal.
U Bend Ferritic Steel Tube ASTM A268 TP405 AISI Type 405 1.4002 Stainless Steel has marginal Ferritic steel corrosion resistance. It is used primarily as a structural material. It is serviceable in continuous service up to 1300°F and in intermittent exposures up to 1500°F. It does not harden appreciably when air cooled from the high temperatures where some austenite may exist.
U Bend Ferritic Steel Tube ASTM A268 TP405 is a 12% chromium steel designed to be used in the as-welded condition. Unlike other 12% chromium steels, it is not subject to a great deal of hardening through air cooling from high temperatures.
405 Ferritic Steel Specification:
- ASTM A240 Standard Specification for Chromium and Chromium-Nickel Ferritic Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
- ASTM A268 Standard Specification for Seamless and Welded Ferritic and Martensitic Ferritic Steel Tubing for General Service
- EN 10088-2 Ferritic Steel – Part 2: Technical delivery conditions for sheet/plate and the strip of corrosion-resisting steels for general purposes
- JIS G3463 Ferritic Steel for Boiler and Heat Exchanger Tubes
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