Name: ASME SA213 Sanicro 25 22Cr25NiWCoCu Austenitic Stainless Steel for Power Plants
Brand: Yuhong Group Co.,Ltd
SKU: UNS: S31035, 1.4990, X7NiCrWCuCoNb25-23-3-3-2
Price: 150000.00 USD
Availability: InStock

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Home Products Stainless Steel Seamless Tube

ASME SA213 Sanicro 25 22Cr25NiWCoCu Austenitic Stainless Steel for Power Plants

Product Details:

Place of Origin:	China
Brand Name:	YUHONG
Certification:	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number:	UNS: S31035, 1.4990, X7NiCrWCuCoNb25-23-3-3-2

Payment & Shipping Terms:

Minimum Order Quantity:	100KGS
Price:	negotiable
Packaging Details:	Ply-wooden Case /Iron Case/ Bundle with plastic Cap
Delivery Time:	10days->
Payment Terms:	T/T, L/C
Supply Ability:	1500 tons per month

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Detailed Product Description

Standard:	EN10216-5 , DIN 17456, DIN 17458, ASTM A213, ASME SA213, JIS G3459, G3463 , GOST 9941	Material:	UNS: S31035, 1.4990, X7NiCrWCuCoNb25-23-3-3-2
Size-OD:	73MM	Size-Thickness:	20BWG, 18BWG, 16BWG, 14BWG, 12BWG, 10BWG, 8BWG
Length:	6000mm To 8000mm	NDT:	ET, UT, HT,
Application:	Coal Fired Steam Boilers

ASME SA213 Sanicro 25 22Cr25NiWCoCu Austenitic Stainless Steel for Steam Boilers

Yuhong Group's Sanicro 25 is an austenitic 22Cr25NiWCoCu stainless steel material with excellent high-temperature properties designed for use in advanced pulverised coal steam boilers.

The new heat-resistant steel, SA-213 S31035 (22Cr25Ni3W3CuCoNbN), is currently recognized as one of the main candidate materials for power plants due to its exceptional strength.

The results of the creep tests demonstrated that S31035 steel exhibits significantly higher creep strength compared to S30432 steel, with an extrapolated creep rupture strength of approximately 118.0 MPa after 50,000 hours at 700°C. Additionally, it displayed excellent fracture toughness, with a fracture surface contraction exceeding 50%. The exceptional creep strength of S31035 steel is attributed to the combined precipitation strengthening of nanoscale Cu-rich phases, acicular Laves phases, and secondary Z phases.

**Sanicro 25 Chemical composition (nominal) %**

**SPEC: UNS31035 Code case 2752 VdTUV 555**
C	Si	Mn	P	S	Cr	Ni	W	Co	Cu	Nb	N
≤0.1	0.2	0.5	≤0.025	≤0.015	22.5	25	3.6	1.5	3.0	0.5	0.23

Sanicro 25 Solution annealing

1180-1250°C (2155-2280°F) and quenched.

Sanicro 25 Physical properties

Density: 8.32 kg/dm³; 0.29 lb/in³

**Sanicro 25 Thermal conductivity**
Temperature, ^oC	W/(m ^oC)	Temperature, ^oF	Btu/(ft h ^oF)
20	12	68	7
100	13	100	7
200	15	200	7.5
300	16	400	9
400	18	600	10
500	20	800	11
600	22	1000	12
700	23	1200	13
800	25	1400	14.5
900	27	1600	15.5
1000	28	1800	16.5
1100	30	2000	17.5

**Sanicro 25 Specific heat capacity ¹⁾**
Temperature, ^oC	J/(kg ^oC)	Temperature, ^oF	Btu/(lb ^oF)
20	470	68	0.11
100	485	100	0.11
200	500	200	0.12
300	520	400	0.12
400	535	600	0.12
500	555	800	0.13
600	570	1000	0.13
700	585	1200	0.14
800	605	1400	0.14
900	620	1600	0.15
1000	640	1800	0.15
1100	665	2000	0.16

Sanicro 25 Mean values

Resistivity
Temperature, ^oC	µΩm	Temperature, ^oF	µΩin.
20	0.98	68	38.6

Thermal expansion
Temperature, ^oC	Per ^oC	Temperature, ^oF	Per ^oF
30-100	14.5	86-200	8
30-200	1.5.	86-400	8.5
30-300	16	86-600	8.5
30-400	16	86-800	9
30-500	16.5	86-1000	9
30-600	16.5	86-1200	9.5
30-700	17	86-1400	9.5
30-800	17	86-1600	9.5
30-900	17.5	86-1800	10
30-1000	18	86-2000	10
30-1100	18.5