ASTM A268 Seamless TP405 1.4002 Ferritic Martensitic Steel Tubes
ASTM A268 Seamless TP405 1.4002 Ferritic Martensitic Steel Tubes
YUHONG Group offers ASTM A268 TP405 SMLS/WELDED ferritic martensitic stainless steel tubes and we sell these tubes in more than 70 countries up to now. This specification covers a number of grades of nominal-wall-thickness, stainless steel tubing for general corrosion-resisting and high-temperature service.
TP405 ferritic martensitic steel is a low carbon, 12% chrome steel, not subject to appreciable hardening through air cooling from high temperatures. This tendency retards the formation of hardening cracks caused by welding. And practically with the same corrosion and oxidation resistance as TP410. Besides, this material can be machined, drawn, spun and formed without difficulty.
Specifications
| Standard | ASTM A268 |
| Name of Material | Ferritic and Martensitic Stainless Steel Tubes----Seamless or Welded |
| Keywordas | Ferritic stainless steel; welded steel tube, etc. |
| Condition | Annealed |
| Quantity | Feet,metres,or number of lengths |
| Length | Specific or random |
Applications
Used for heat exchanger in cracking installations in the oil industry
Used for applications where hardening upon cooling from high temperatures must be avoided. Has excellent long-time stability up to 1200°F.
Used in quenching racks, annealing boxes, partitions, steam nozzles and various other fabrications that cannot be annealed after welding,etc.
Chemical Composition %
| Grade | Norm | C | Si | Mn | P | S | Cr | Ni | 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 |
Mechanical Properties / 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 268/ ASTM A268 | 205 | / | 415 | 20 | 95 | annealed |
| Rp 0,2 = Rotation; Rp 1,0 = Yield Strength; Rm = Tensile Strength; A = Elongation | |||||||
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 |
Test Required
Chemical Analysis/ Mechanical Properties/ Hardness Test/ Flattening Test/ Tension Test/ FlaringTest
Intergranular Corrosion Test/ Hydrostatic or Nondestructive Electric Test/ Ultrasonic Test
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