Duplex Stainless Steel 2205/S31803/S32205/1.4462 – GMTC

2205

  • S31803, S32205, DIN 1.4462

SpecificationASTM A790M, ASTM A479, ASTM A182,ASTM A276, DIN 1.4462

It is a nitrogen enhanced duplex stainless steel that solves the corrosion issue the 300 series stainless steel encounters. It is the mostly used steel grade among the duplex stainless steels. It is resistant to stress corrosion cracking with high strength, good machinability, and corrosion resistance.

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Introduction

Product properties

˙ Outstanding intergranular corrosion resistance, pitting corrosion resistance, and interstitial corrosion resistance

˙ Resistant to stress corrosion cracking caused by chloride


Industrial Applications

˙ Chemical engineering industry

˙ Equipment in a high temperature environment

˙ Food industry

Specifications

Chemical composition (wt. %)

Element
C
Si
Mn
P
S
Cr
Ni
Mo
N
Min.
-
-
-
-
-
21.00
4.50
2.50
0.08
Max.
0.03
1.00
2.00
0.030
0.015
23.00
6.50
3.50
0.20

Physical Property

Density (g/cm^3)
7.8

Modulus of elasticity

Temperature (℃)
Gpa
20
200

Thermal Expansion Coefficient

Temperature (℃)
10^-6/℃
300
13

Mechanical Property

Items
Solution Treatment
Hardness (HBW)
290 max.
Tensile Strength Rm (KSI)
90 min.
Yield Strength 0.2%Rp (KSI)
65 min.
Percentage of Elongation A(%)
25 min.

Size Ranges

Products
Diameter (mm)
Length (mm)
Rolled bar
10~95
3,000~5,700
Forged bar
95.2~440
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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