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PH 13-8 Mo | 1.4534 |UNS S13800 |ASTM XM-13 | 13-8Mo

XM-13 | UNS S13800 | DIN 1.4534 | 13-8 MO

XM-13 | UNS S13800 | DIN 1.4534 | 13-8 MO


Brand name PH 13-8 Mo
Standards Material No. EN Designation ASTM UNS
1.4534 X3CrNiMoAl13-8-2 XM-13 S13800
Description 1.4534 / PH 13-8 Mo is a precipitation hardening stainless steel.
Special properties Precipitation hardenable, stainless steel, stress corrosion resistance, high strength up to 315°C.


PH 13-8 Mo | 1.4534 |UNS S13800 |ASTM XM-13 | 13-8Mo


Description of PH 13-8 Mo | 1.4534 |UNS S13800 |ASTM XM-13 | 13-8Mo :

PH 13-8Mo stainless is age-hardening stainless steel capable of high strength and hardness along with good levels of resistance to both general corrosion and stress-corrosion cracking. In addition, the alloy exhibits good ductility and toughness in large sections in both the longitudinal and transverse directions. The excellent properties of PH 13-8 Mo stainless are obtained through close control of chemical composition and microstructure plus specialized melting which reduces impurities and minimizes segregation. Compared to other ferrous-based materials, this alloy offers a high level of useful mechanical properties under severe environmental conditions.

13-8 Mo stainless has good fabrication characteristics and can be age-hardened by a single low temperature treatment. Cold work prior to aging increases the aging, especially for lower aging temperatures.


Applications of PH 13-8 Mo | 1.4534 |UNS S13800 |ASTM XM-13 | 13-8Mo :

PH 13-8 Mo stainless has been used for valve parts, fittings, cold-headed and machined fasteners, shafts, landing gear parts, pins, lock washers, aircraft components, nuclear reactor components and petrochemical applications requiring resistance to stress-corrosion cracking. Generally, this alloy should be considered where high strength, toughness, corrosion resistance, and resistance to stress-corrosion cracking are required in steel showing minimal directionality in properties.


Machinability of PH 13-8 Mo | 1.4534 |UNS S13800 |ASTM XM-13 | 13-8Mo :

The alloy 13-8 Mo can be machined in the solution-annealed and in the various age-hardened conditions. To obtain optimum machinability, treat solution annealed material at 1400ºF (760ºC) for 2 hours and air cool, then heat to 1150ºF (620ºC) for 4 hours and air cool.


Weldability of PH 13-8 Mo | 1.4534 |UNS S13800 |ASTM XM-13 | 13-8Mo :

The Steel 13-8Mo PH may be welded by shielded fusion or resistance methods. If a filler metal is required a 13-8 type should be used. Heat treatment before and after welding will depend upon required strength levels in both the parent and weld metals.


Technical Data Sheet of PH 13-8 Mo | 1.4534 |UNS S13800 |ASTM XM-13 | 13-8Mo :

Chemical Composition Limits
Weight% C P Si Ni Al Fe Mn S Cr Mo N
13-8 Mo 0.05 max 0.010 max 0.10 max 7.5-8.5 0.90-1.35 Bal 0.10 max 0.008 max 12.25-13.25 2.0-2.5 0.01 max

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