RED W | Paralloy Group | Paralloy Group

26/46/4.0 Cr/Ni/W 0.5%C

Cast Heat Resisting Alloy

Application

Tungsten Strengthening Alloy For Extreme Temperatures

RED-W is a variation of H48T specially developed for the DRI application related to Midrex type reformer design. RED-W tailored chemistry allow not only exposure to temperature up to 1200ºC in conditions where the maximum resistance to carburisation and oxidation are required, but also give it a good resistance to fatigue cycle, and creep fatigue allow to possess a good ductility, particularly a good creep ductility, and hot temperature ductility which can accommodate.

RED-W brings the advantages of combining good creep resistance at high temperature and the ability to endure repetitive temperature cycles. RED-W has good ductility along with its high temperature creep, this makes this material an ideal choice. The hot temperature ductility adds to its stability in service. Increased strength at high temperature gives the material the ability to accommodate creep and fatigue which is often encountered during plant operations

Nominal Composition

6
C Carbon

0.5
14
Si Silicon

2.0
25
Mn Maganese

1.2
24
Cr Chromium

26
28
Ni Nickel

46
74
W Tungsten

4.0
Plus
Additions

Physical Properties

Coefficient of Thermal Expansion (mm/mm°C)	Thermal Conductivity (W/m°K)	Density (kg/m³)	Specific Heat (J/KGK)
20 – 100°C – 15.5 x 10⁻⁶	100°C – 14.2	8.15 x 10³	49
20 – 800°C – 17.8 x 10⁻⁶	800°C – 23.9
20 – 1000°C – 18.2 x 10⁻⁶	1000°C – 26.4
20 – 1100°C – 18.5 x 10⁻⁶	1100°C – 27.6

Mechanical Properties

Download specifications

UTS (N/mm²) 500
Proof Stress 0.2% (N/mm²) 300
Elongation (%) 7 (tube)
Temperature (°C) UTS (N/mm²) 0.2% (N/mm²) Elongation (%)
900°C 180 110 30
950°C 145 95 50
1000°C 105 80 55
1100°C 80 55 55

Temp (°C)	10,000 Hour Life		50,000 Hour Life		100,000 Hour Life
	Minimum	Mean	Minimum	Mean	Minimum	Mean
900	27.32	29.89	22.74	24.88	20.87	22.84
950	20.25	22.15	16.11	17.63	14.49	15.85
1000	14.19	15.53	10.76	11.77	9.47	10.36
1050	9.41	10.29	6.77	7.41	5.83	6.38
1100	5.89	6.45	4.02	4.40	3.38	3.69
1150	3.49	3.82	2.25	2.46	1.84	2.02
1200	1.96	2.14	1.19	1.30	0.95	1.03

Download specifications

UTS (N/mm²)	500
Proof Stress 0.2% (N/mm²)	300
Elongation (%)	7 (tube)

Temperature (°C)	UTS (N/mm²)	0.2% (N/mm²)	Elongation (%)
900°C	180	110	30
950°C	145	95	50
1000°C	105	80	55
1100°C	80	55	55

Temp (°C)	10,000 Hour Life		50,000 Hour Life		100,000 Hour Life
	Minimum	Mean	Minimum	Mean	Minimum	Mean
900	27.32	29.89	22.74	24.88	20.87	22.84
950	20.25	22.15	16.11	17.63	14.49	15.85
1000	14.19	15.53	10.76	11.77	9.47	10.36
1050	9.41	10.29	6.77	7.41	5.83	6.38
1100	5.89	6.45	4.02	4.40	3.38	3.69
1150	3.49	3.82	2.25	2.46	1.84	2.02
1200	1.96	2.14	1.19	1.30	0.95	1.03