Super-ferritic stainless steel Grade TTS429

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Posted On

13-Nov-13

Product Details

s.
Conventional Products
Steel grade Grade Specifications
Thickness Width mm Weight MT Standard Application
400 series SUS436L TTS441 TTS429 439M 2B/2D Surface: 0.3-3.0mm
BA surface: 0.2-1.5mm 2B/2D Surface:
1000-1280
1000-2000
BA surface: 1000-1500 6-15MT Q/T 128-2011
ASTM/ASME
JISG4305
EN10088
BSEN10028-7 Apply to exhaust pipe
Chemical Composition
Grade Mass Percentage (%) MAX
C Si Mn P S Cr N Mo Others
429 0.020 1.00 1.00 0.040 0.030 14.0-16.0 0.020 - Nb:3C+0.3-1.00
Physical properties
Grade Density (g/cm3) Elastic modulus GPa Linear expansion coefficient 10-6/K20-100C Themnal conductivity W/m K 100C J/Kg k Specific heat 20C Resistance rate (UM cm) Magnetism
429 7.70 225 10.9 26.8 460 67 Qualified
Mechanical Properties
Mechanical properties at ambient temperature
Grade Yield strength RP0.2(MPa) Tensile strength Rm(MPa) Elongation A(%) Hardness HRS Hardness HV Bending test
429 ≥205 ≥450 ≥22 ≤88 ≤200 Qualified
Welding Properties and Notice:
Low carbon and Nitrigon, Titanium and Niobium added, high corrosion-resisted performance on welding parts.
Difficult for Fusion wedding and etter for filler wire welding.
Low thermal expansion coefficient-high heat conduction and small deformation after welding comparing with 304.

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