4340 round bar

タイトルまたは説明

Description:
***0 is a 1.8% nickel - chromium - molybdenum high hardenability high tensile steel - generally supplied hardened and tempered in the tensile range of **0 - ***0 Mpa (condition U) - (Rc *8 - *6).
Characterised by high strength and toughness in relatively large sections.
Pre hardened and tempered ***0 can be further surface hardened by flame or induction hardening and by nitriding.
***0 is used in most industry sectors for applications requiring higher tensile/yield strength than ***0 can provide.

APPLICATIONS:

Components for the aircraft, automotive, general engineering industries, Propeller shafts, connecting rods, gear shafts, and other automobile parts, Heavy forgings, Rotors, shafts, discs. Pulley shafts, gears, pins and axles, Heavy-duty axles, shafts, heavyduty gears, spindles, pins, studs, collets, bolts, couplings, sprockets, pinions, torsion bars, connecting rods, crow bars, conveyor parts etc. Used where higher yield and tensile strength than ***0 is required.

RELATED SPECIFICATIONS:

Australia AS ********7 ***0

Germany W.Nr 1.***5 *4CrNiMo6

Great Britain BS**0 ***5 EN*4

BS**0 Part 3:***1 **7M*0

BS EN****3:*****1 **7M*0

USA ASTM A*9A*9M ***1 ***0

ASTM A**2 ***0

SAE ***0

UNS G****0

Japan JIS G ***3 SNCM**9

JIS G ***3 SNCM8

Werkstoff 1.***5 *0NiCrMo6

Chemical Composition(%):

Carbon 0.***0.*4

Silicon 0.***0.*7

Manganese 0.***0.*0

Phosphorus 0.*4 max

Sulphur 0.*4 max

Chromium 0.***0.*0

Molybdenum 0.***0.*5

Nickel 1.***1.*5

Process: EAF+LF+VOD+ Forged or Rolled +Heat Treatment(optional)

SIZE RANGE:

Round:

Hot Rolled: 8mm***0mm

Flat:

Hot rolled: Thickness: *****0mm Width: less than **0mm

SURFACE FINISHES:

Black, Peeled K*2, Cold Drawn, Turned & Polished H*0, H*1, Precision Ground H9, H8

Test: Ultrasonic test according to SEP ******4 3Cc