Precipitation hardening stainless steel

XM-12 / S15500 precipitation hardening stainless steel

XM-12 chemical composition;XM-12 / S15500  mechanical properties; XM-12 application;XM-12 / S15500  heat treatment;  XM-12 / S15500  specification; XM-12 package and shipment
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 steel  grade:

 

XM-12

UNS  S15500

 


Product Description

 

 

XM-12 / S15500  Chemical composition

 

Carbon 0.07 max
Chromium 14 - 15.5
Copper 2.5 - 4.5
Iron Balance
Manganese 1 max
Nickel 3.5 - 5.5
Niobium 0.15 - 0.45
Phosphorus 0.04 max
Silicon 1 max
Sulphur 0.03 max


 


The alloy XM-12 / S15500 combines good strength, transverse toughness and ductility, hardness capability and corrosion resistance compared with 304 stainless. It may be used in the solution treated condition or heat treated to obtain a wide variety of properties.


 

  15Cr-5Ni is a martensitic precipitation hardening stainless steel offering high strength and hardness along with excellent corrosion resistance. Generally similar to Custom 630 (17Cr-4Ni) in composition and properties, 15Cr-5Ni is chemically balanced to eliminate all but trace amounts of delta ferrite, thus providing superior transverse toughness and ductility plus a higher degree of forgeability.

  XM-12 stainless steel

 

APPLICATION  of  XM-12 / S15500 

Aircraft components, fabricated parts in high pressure corrosive environments including valves, shafts, fasteners, fittings and gears

 


 


XM-12  mechanical properties: 


 

 
 
Tensile strength Rm
(MPa)
Yield strength Rp0.2
(MPa)min
Elongation A
(%)min
Reduction of area Z
(%)min
Charpy
AKv min
Hardness
HBW
 H900  1310  1170  10  35    388
 H1025  1070  1000  12  35    331
 H1075  1000  860  13  45    331
 H1100  965  795  14 45    302
 H1150  930  725  16  50    277

 



XM-12 / S15500 Specifications:
 
steel round bar : dia 2mm to 1000mm
 
Square-shape steel: 50mm  to  600mm
 
Steel sheet: thickness 0.5mm-12mm  width 1000mm max
 
Steel strip:  thickness 0.5mm-4mm   width 300mm max
 
steel plate :  thickness 5mm-800mm    Width: 10mm to 1000mm
 
steel pipe: OD 8-800mm
 
Length: random length/  fixed length
  
Delivery condition:  hot forged / hot rolled /cold-rolled
 
  annealing/normalizing + tempering/quenching + tempering/ solution
 
Surface : black/ground/rough turned/fine machining/Peeled / mill-fimish surface
 
metallurgical processing: electrode arc + LF/VD/VOD/ESR/  VIM/ VAR
 
Ultrasonic inspection: 100% ultrasonic test



 
CONTACT: Kelly Ho
 
E-mail: yihe15@aliyun.com

 


 

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