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Austenitic steels

TP 304H • UNS S30409 • 1.4948 • TPS-INOX 4948-304H

Datasheet

TP 304H with guaranteed carbon content of min. 0,04% gives a better creep resistance. Similar oxidation resistance to TP 304. Main applications: Heat exchangers, chemical and petrochemical furnaces.

Chemical composition • mass in %
Material grade Norm C
max.		 Si
max.		 Mn
max.		 P
max.		 S
max.		 Cr Ni Mo Ti others
1.4948 EN 10216-5 0,040 - 0,080 1,00 2,00 0,035 0,015 17,00 - 19,00 8,00 - 11,00 N 0,10 max.
TP304H ASME SA / ASTM A 213 0,040 - 0,100 1,00 2,00 0,045 0,030 18,00 - 20,00 8,00 - 11,00

Mechanical properties and heat treatment
Material grade Norm Rp 0,2 MPa
min.		 Rp 1,0 MPa
min.		 Rm MPa
min. max.		 A
min.%		 Hardness
HRB max.		 Heat treatment
1.4948 EN 10216-5 185 225 500 - 700 40 solution annealed
TP304H ASME SA / ASTM A 213 205 515 35 90 solution 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

Scope of dimensions*

* Dimensions not shown on request

WD [mm] 0,89 1,00 1,20 1,24 1,65 1,82 2,00 2,11 2,30 2,35 2,50 2,60 2,64 2,77 2,87 3,00 3,20 3,25 3,60 3,85 3,91 4,00 4,40 5,50 6,35 7,00
AD [inch] 0,035 0,048 0,065 0,072 0,083 0,093 0,104 0,109 0,113 0,126 0,128 0,154 0,250
[mm] [inch]
6,00
6,35 0,250
7,00
7,50
8,00
9,00
9,53 0,375
10,00
11,00