November 5, 2018

NC310YW Bar

NC310YW is a high strength steel used for parts subject to high mechanical and high fatigue stresses. For applications that are exposed to high contact friction, NC310YW can be carburized. Its high tempering temperature (300°C) enables carburized components to be surface coated, and it can also be used at high working temperatures (>150°C).

FOR REQUIREMENTS: High Strength and High Fatigue through hardening steel
MELT PRACTICE: VIM-VAR
ALT TO: 300M, Aermet 100, 310, & 340 and Maraging 250, 300, & 350
SPECIFICATIONS: AMS6499
40SiNiCrMoV10
UNS: K54015

Benefits of NC310YW

  • 10% Higher UTS than 300M
  • Excellent fatigue properties compared to PH Steels
  • Surface Carburizable
  • Less Expensive alternative to Aermet and Maraging Steels

Typical Applications

  • Transmission Shafts
  • Gears
  • Driveshafts/tripods (in Formula 1 cars)
  • Axle Shafts

Comparison to Other Materials

 
Heat Treatment
YS
MPa
(ksi)
UTS
MPa
(ksi)
A
%
Z
%
K1c

 MPa√m
(ksi√inch)

NC 310 YW
(AMS 6499)
940°C (1724°F) /2h

Oil

-75°C (-103°F)/4h

2×300°C (572°F) /2h/air

1725

(250)


2100

(305)


7

30

45

(41)
Typically 55 (50)

300 M

(AMS 6419)

870°C (1598°F) /2h

Oil

2×300°C (572°F) /2h/air


1586

(230)


1931

(280)


7*

25

55

(50)
Typically 60 (54.6)

  NC310YW 300M Aermet 100 Aermet 310 Maraging 250 Maraging 300 Maraging 350
UTS 311 280 285 315 254 293 342
Yield Strength 260 230 250 275 248 286 336
Elongation 9% 10% 14% 14% 11% 10% 6.20%
Fracture Toughness   65 115 65 75 70 70

Chemical Composition

C Si Cr Mo V Ni
0.40 2.70 0.85 0.40 0.20 1.75

Stocking Sizes

1.181” – 5.906”ø (30 mm – 150 mmø)

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Datasheet



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