Ti2Pd | 3.7235 Material Datasheet

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Material Description

Material Number Material Number (single) Standard Scope Standard Status Country Successor VDA 231-106 classification
3.7235 (DIN 17862 : 1993-02) 3.7235 DIN 17862 : 1993-02 DIN 17862 : 1993-02 replaced by DIN 17862 : 2012-03 Replaced Germany Ti2Pd 2.3 1)
1) Remark: Chemical composition: DIN 17851 Ti2Pd (soft annealed) with the material number 3.7225 is used acc. VdTÜV-Wbl 230-1 : 2001-12 (sheet and strip) and VdTÜV-Wbl 230-2 : 1995-06 (seamless circular tubes) and VdTÜV-Wbl 230-3 : 2001-09 (rods, wire and forgings) for pressure vessels subject to TRB 100 and AD-Merkblatt W 0, part 3.4, from - 10 to 300 °C. Welding: Ti2Pd is weldable under use by argon (min 99.99%) with low humidity content for TIG-welding (with and without addition) and for MIG-welding. With the welding are to be protected the seam upper side as well as the root side with edge zones by suitable weld facilities against the admission of air also during the cooling under about 300 °C. Excessive hardening can occur through admission of pollutions and this can lead to an embrittlement of the weld seam. Hence, is to be paid attention to cleanness of the weld edges and edge zones as well as the addition especially. As addition a proofed blank wire of the same titanium group is to be used. A stress relieving annealing after the welding is only necessary for internal stress after the welding, possible caused by the material thickness or the constructive configuration. Corrosion resistance (acc. DIN 17850): Ti2Pd shows almost the same strength properties as the corresponding unalloyed titanium material (Ti2, material number 3.7035 according to DIN 17805-90). In comparison to the unalloyed material, the material has improved resistance to corrosion in reducing mediums. Ti1Pd possesses high resistance to general corrosion, especially to crevice and stress cracking corrosion, and it is resistant to pitting to a large extent. There exists resistance to nitric acid, chromic acid, sulphurous acid, alkali-lyes, ammonia, aqueous chlorides, moist chlorine gas, acetic acid, liquid hydrogen. The material has proven worthwile particularly in hydrochloric and sulphate solutions at high temperatures, too, and with insufficient of addition of inhibitors and with oxalic acid. Processing properties: Formability: good (especially well cold-formable) Weldability: good (tungsten inert-gas, MIG, plasma, electron beam and resistance welding) Application: Typical fields of application are chemical plants, particularly for the handling of highly aggressive mediums containing chloride.

Mechanical Properties

Semi-finished Product Condition Condition Number Strength Abbrevation Nominal Size [mm] Temperature [°C] Specimen Direction Tensile Strength [MPa] Yield Strength (0.2% offset) [MPa] Yield Strength (1.0% offset) [MPa] Elongation A [%] Reduction of Area [%] Hardness HB | HBW
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Physical Properties

Temperature [°C] Density [g/cm³] Young's Modulus [GPa] Mean Coefficient of Thermal Expansion [10^-6*K^-1] Thermal Conductivity [W/(m*K)] Specific Electrical Resistance [µΩm] Mean Specific Heat Capacity [kJ/(kg*K)]
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Toughness Data (Impact)

Semi-finished Product Condition Nominal Size [mm] Temperature [°C] Specimen Shape Specimen Direction Notch Impact Energy [J]
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Cross Reference

Material Name Country Standard
Ti2Pd (3.7235) Germany DIN 17851
Grade 7 USA
R52400 USA UNS

Material Compliance

REACh RoHS
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Linear-elastic

Temperature [°C] Young's modulus [GPa] Bulk modulus [GPa] Shear modulus [GPa] Poisson's ratio
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Electrical resistivity

Temperature [°C] Specific electrical resistance [µΩm]
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Specific heat

Temperature [°C] Specific heat [kJ/(kg*K)]
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Density

Temperature [°C] Density [g/cm³]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Thermal conductivity

Temperature [°C] Thermal conductivity [W/(m*K)]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Designation

Designation Material number Source
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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Yield strength

Temperature [°C] 0.1% Proof strength [MPa] 0.2% Proof strength [MPa] Yield strength [MPa]
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Tensile strength

Temperature [°C] Tensile strength [MPa]
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Classification

WIAM Material Treatment Semi-finished product Dimension [mm] Load type Failure criteria Rolling direction Maximum stress [MPa] Strain at maximum stress [%] Source description
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