00Cr32Ni7Mo4N

HuaNickel 00Cr32Ni7Mo4N and the aforementioned 00Cr27Ni7Mo5N are super duplex stainless steels. 00Cr32Ni7Mo4N was developed to meet the demanding needs of deep-sea (water depths of nearly 2500m and pressures above 1500psi). Compared with the aforementioned SAF2507, the increase in the amount of chromium and nitrogen in the steel makes HuaNickel 00Cr32Ni7Mo4N steel not only have higher strength to withstand higher applied loads, but also have more excellent corrosion resistance to meet the needs of more demanding corrosive media.

00Cr32Ni7Mo4N Chemical composition：

	Ni	Mo	N	Cr	C	Mn
Min	6	3	0.4	29	≤
Max	9	5	0.6	33	0.03	1.5

00Cr32Ni7Mo4N Physical properties：

Density	7.7 g/cm3
ResistivityμΩin	20℃	34.1
Specific heat capacity	20℃	480J/（kg℃）

00Cr32Ni7Mo4N Alloy properties

00Cr32Ni7Mo4N has good corrosion resistance and high strength; It also has high strength and toughness, can withstand high stress and impact loads, and is suitable for engineering structures that require high strength.

00Cr32Ni7Mo4N Uses of alloys：

Replacement of super austenitic stainless steels and high-nickel corrosion-resistant alloys in heat exchange equipment (seawater condensers, etc.) that use seawater as the cooling medium.

00Cr32Ni7Mo4N Process performance：

Welding process: SAF3207 HD has good weldability. Welding must be carried out without preheating and usually does not require subsequent heat treatment. A suitable fusion welding method is tungsten electrode thermoelectric welding with gas shielding gas Ar+2%N2 GTAW/TIG. For tube-to-tube sheet welding, it is recommended to use Ar+3% N2 as shielding gas to obtain a proper welded metal structure.

Relevant standards：

ASTM A789/A 790、ASTM A789，A790