A268 TP443 Stainless Steel Square Tube
The thermal conductivity of tp443 steel tube is about 30% higher than that of 304 pipe, which saves time and energy if used in the field of cooking equipment manufacturing, so this pipe is widely used in the manufacturing of kitchen equipment, such as ovens, induction cooktops and so on.
Chemical Composition Chart of TP443 Stainless Steel Tube
| C | Cr | Co | Mn | Ni | P | Si | S | |
| Percentage | 0.2% |
18 - 23 % |
0.9 - 1.25 % |
1 % |
0.75 % |
0.04 % |
1 % |
0.03 % |
Mechanical Properties of A268 TP443 Pipe
| Grade |
Tensile Strength |
Yield Strength |
Elongation |
Fatigue |
Young's Modulus |
| 443 |
650 - 880MPa |
350 - 550MPa |
8 - 25% |
275 - 275MPa |
200 000 MPa |
Physical Properties of A268 TP443 Square Tube
| Grade |
Density |
Melting Temperature |
Specific Heat |
Thermal Conductivity |
Thermal Expansion |
Resistivity |
| 443 | 7 700 kg/m3 |
1 450 - 1 510°C |
460 |
25 W/m.K |
10e-6/K |
0.55Ohm.mm2/m |
Specifications of TP443 Steel Tube
|
Round Bar Steel |
1mm to 3 000mm |
|
Square Pipe |
1mm to 2 000mm |
| Plate Steel | 0.1mm to 2 500mm |
| Width | 10mm to 2 500mm |
| Length | We can supply any length based on the customer's requirement. |
| Forging | Shafts With Flanks/Pipes/Tubes/Slugs/Donuts/Cubes/Other Shapes |
| Tube | OD: φ6-219 mm, with wall thickness ranging from 1-35 mm. |
| Finished Goods Condition | Hot Forging/ Rolling + Annealing/Normalizing + Tempering/Quenching + Tempering/Any Conditions Based On The Customer's Requirement |
| Surface Conditions | Scaled (Hot Working Finish)/Ground/Rough Machining/Fine Machining/Based On The Customer's Requirement |
| Furnaces for Metallurgical Processing | Electrode Arc + Lf/Vd/Vod/Esr/Vacuum Consumable Electrode |
|
Ultrasonic Inspection |
100% ultrasonic inspection for any inperfections or based on the customer's requirement. |
Principal Design Features
One of the most widely used precipitation hardening grades in the business. While soft and ductile in the solution annealed condition, it is capable of high properties with a single precipitation or aging treatment. Characterized by good corrosion resistance, high harness, toughness and strength.
Machinability
Long, gummy chips characterize this alloys machinability. It can be machined in the annealed condition, however condition H1150M will yield best results. Post machining solution treatment of parts will be required prior to final hardening if machining in this condition.
Heat Treatment
CONDITION A--Soak at 1900 F (1038 C) for 30 minutes and cool below 60 F (16 C) for complete martensite transformation. CONDITION H 950- Treat Condition A material at 900 F(482 C) for 1 hour, air cool.. CONDITION H925, H1025, H1075, H1100, H1150- Soak solution treated material for 4 hours at specified temperature, air cool, CONDITION H1150M- Soak solution treated material at 1400 F (760 C) for 2 hours, air cool, then re-heat to 1150 F (620 C) for 4 hours and air cool.
Welding
Successfully welded by common fusion and resistance methods, this alloy should not be joined by oxyacetylene welding. AWS E/ER630 filler metal is recommended if required.
Forging
Soak for 1 hour at 2150 F (1177 C) prior to forging. Do not work below 1850 F (1010 C). Post-work solution treatment is required prior to final hardening.
Finished Product of TP443 Stainless Steel Square Tube
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