Austenite Stainless Steel 347/1.4550/X5CrNiCuNb17-4-4/S34700 – GMTC

347

  • 1.4550, S34700, SUS 347

SpecificationAMS 5646

This is an Austenite stainless steel that contains niobium and thallium. It has superior intergranular corrosion resistance and oxidation resistance.

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Introduction

Product properties

˙Outstanding intergranular corrosion resistance

˙Oxidation resistance

˙Higher creep and stress rupture resistance than that of 304/304L stainless steel

˙Good low temperature toughness

˙Non magnetic in the annealing state


Industrial Applications

˙Aerospace high temperature parts

˙Combustor cover

Specifications

Chemical composition (wt. %)

Element
C
Si
Mn
P
S
Ni
Cr
Mo
Cu
Co
Min.
-
-
-
-
-
9.00
17.00
-
-
-
Max.
0.08
1.00
2.00
0.040
0.030
12.00
19.00
0.75
0.75
1.00

Physical Property

Density (g/cm^3)
7.9

Modulus of elasticity

Temperature (℃)
Gpa
500
165
20
200

Thermal Expansion Coefficient

Temperature (℃)
10^-6/℃
300
17

Thermal Conductivity

Temperature (℃)
W/m·K
20
15

Mechanical Property

Items
Solution
Hardness
Reported
Tensile Strength Rm (KSI)
75 min.
Yield Strength 0.2%Rp (KSI)
30 min.
Percentage of Elongation A(%)
40 min.
Section Shrinkage Z(%)
50 min.

Size Ranges

Products
Diameter (mm)
Length (mm)
Rolled bar
10~95
3,000~5,700
Forged bar
95.2~230
3,000~5,700
Billet
130x130, 140x140, 150x150, 160x160
7,000 max.
Flat bar
80x80 (min.)
Based on the customer needs

Heat Treatment Conditions

Heat Treatment Conditions
Solution Treatment: 1040℃, water cooling

Related Application

Click any of application links below to view their detailed introduction

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