MATERIAL DESCRIPTION

Lean Duplex according to NORSOK M-120 MDS YD35 has an improved balanced chemistry of chromium, molybdenum and nitrogen content, resulting in a PRE value ≥ 28 and increased mechanical strength compared to the standard EN 1.4362 / UNS 32304. This grade outruns AISI 316L acc. to both EN 1.4404 & EN 1.4436 with respect to pitting corrosion resistance. Due to risk of embrittlement, duplex steels should not be used at temperatures above 250 – 325°C.

Applications

The main applications for EN 1.4362 / Lean Duplex UNS S32304 / EDX 2304 are for details with special requirements for high corrosion resistance.

S32304 is characterized by:

• Good resistance to stress corrosion cracking.
• Good resistance to pitting and crevice corrosion.
• High resistance to general corrosion.
• High mechanical strength.
• High resistance to erosion corrosion and corrosion fatigue.

Heat Treatment

Solution annealing at 1020 – 1100°C followed by water quenching.

Weldability

Very good.

Chemical Composition (Specific for Plates)

Weight % C Mn P S Si Cr Ni Mo N Cu PREN
Min.           22,0 3,50 0,10 0,05 0,10  28
Max. 0,030 2,00 0,035 0,015 1,00 24,0 5,50 0,60 0,20    

PREN = % Cr + 3.3 % Mo + 16 % N ≥ 28

Reference Standards

General:

  • PED 2014/68/EU Annex I section 4.3
  • AD2000 W0 (W2/ W10)
  • NACE MR0175/ISO 15156-3 and NACE MR0103/ISO 17945

Plate, sheet and coil:

  • ASTM A240, EN 10028-7, EN 10088-2, EN 10088-4, Norsok M-120 MDS YD35

Other products:

  • As per applicable ASTM and/or EN standards and Norsok M-120 MDS

Mechanical Properties (Typical)

  Yield strength Rp0.2,
MPa		 Tensile strength Rm,
MPa		 Elongation
[%]		 Hardness
[HB]		 Impact, Charpy-V, -46ºC
[J]
PLATE CR (COIL) ≥ 450  650-850 ≥ 25   ≥ 45
PLATE HR (COIL) ≥ 450  650-850 ≥ 25 ≤ 290 ≥ 45
PLATE (QUARTO) ≥ 450  650-800 ≥ 25 ≤ 290 ≥ 45
ANGLE BAR ≥ 450 ≥ 600 ≥ 25 ≤ 290 ≥ 45

Plate Stock

MEASUREMENTS KG/PLATE
1,5 X 1500 X 3000 mm 54
2 X 1500 X 3000 mm 72
2 X 2000 X 6000 mm 192
3 X 1500 X 3000 mm 108
3 X 1500 X 6000 mm 216
3 X 2000 X 6000 mm 288
4 X 1500 X 3000 mm 144
4 X 1500 X 6000 mm 288
4 X 2000 X 6000 mm 384
5 X 1500 X 3000 mm 180
5 X 1500 X 6000 mm 360
5 X 2000 X 6000 mm 480
6 X 1500 X 3000 mm 216
6 X 1500 X 6000 mm 432
6 X 2000 X 6000 mm 576
8 X 1500 X 3000 mm 297
8 X 1500 X 6000 mm 593
8 X 2000 X 6000 mm 791
10 X 1500 X 3000 mm 371
10 X 1500 X 6000 mm 742
10 X 2000 X 6000 mm 989
12 X 1500 X 3000 mm 445
12 X 1500 X 6000 mm 890
12 X 2000 X 6000 mm 1187
15 X 1500 X 3000 mm 556
15 X 1500 X 6000 mm 1112
15 X 2000 X 6000 mm 1484
20 X 1500 X 3000 mm 742
20 X 1500 X 6000 mm 1483
20 X 2000 X 6000 mm 1978
25 X 1500 X 3000 mm 927
25 X 1500 X 6000 mm 1854
25 X 2000 X 6000 mm 2472
30 X 1500 X 3000 mm 1112
30 X 1500 X 6000 mm 2225
30 X 2000 X 6000 mm 2966
35 X 1500 X 3000 mm 1298
40 X 1500 X 3000 mm 1483
40 X 2000 X 6000 mm 3955
50 X 1500 X 3000 mm 1854
50 X 2000 X 6000 mm 4944

Hollow Section Stock

MEASUREMENTS KG/M
50 X 50 X 4 mm 5.96
60 X 60 X 4 mm 7.25
80 X 80 X 5 mm 12.13
100 X 100 X 6 mm 17.76
120 X 120 X 6 mm 21.60
150 X 100 X 6 mm 23.02
150 X 150 X 6 mm 27.36
200 X 200 X 8 mm 49.43
250 X 250 X 8 mm 61.95

 

Hot Rolled Angle Stock

MEASUREMENTS KG/M
50 X 50 X 5 mm 3.85
60 X 60 X 6 mm 5.53
80 X 80 X 8 mm 9.85
100 X 100 X 10 mm 15.40

 

Unequal Angle Stock

MEASUREMENTS

KG/M

100  X 50  X 8 mm

9.6

150  X 100  X 8 mm

15.79

 

Coil Stock

1500 mm 2000 mm
 1,5 mm  3 mm
 2 mm  4 mm
 3 mm  5 mm
 4 mm  6 mm
 5 mm  
 6 mm  

 

H-beam

MEASUREMENTS
100 X 100 X 6 X 8 mm
150 X 150 X 8 X 10 mm
200 X 200 X 8 X 12 mm
250 X 250 X 10 X 15 mm
300 X 300 X 10 X 15 mm
350 X 350 X 12 X 20 mm

Product Sheet

View stock list

Material Weight Calculator

Hardness conversion

PREN Calculator

ksi / MPa converter

Equivalent Standards

  • EN 1.4362
  • UNS S32304
  • EDX 2304
Tags: Coil / Plate / Profile