AISI4145H/SCM445 /50CrMo4/din 1.7228 forged steel shaft for
mechnical purpose, OD: 80-1200mm
Specifications: Alloy 4145, AISI 4145, UNS G41450
Typically used in oil and gas applications, Castle Metals stock
Alloy 4145 in round bar, hollow bored bar and Stabilizers, from
their warehouse in Blackburn, UK.
4145 is available in sizes 3.25” – 24”, fully certified to API 7-1,
quenched and tempered with hardness 30 to 36HRc. Stabilizers made
specifically to requirements.
Alloy 4145 is used in a number of applications including drill
collars, pup joints, subs and various other down hole tool products
Alloy 4145 is a Chrome / Moly alloy displaying high hardenability
and good hardness penetration qualities. When heat treated, Alloy
4145 can be machined relatively effectively despite this well-known
hardening grade maintaining its properties at very high
temperatures! What makes Alloy 4145 harder than Alloy 4140 is the
increased use of carbon applied to Alloy 4145.
Customers requiring even higher hardenability properties,
particularly those operating within the Oil & Gas sector, may
look to deploy Alloy 4145 MOD, as opposed to standard Alloy 4145,
due to the increased amount of Mn, Cr or Mo used within to further
strengthen the alloy.
Chemical Composition (%)
Process: EAF+LF+VOD+Forged+Heat Treatment(optional)
Annealed:(Metallurgy) to temper or toughen (something) by heat treatment
Normalized:To remove strains and reduce coarse crystalline structures in (metal), especially by heating and cooling.
Quenched: To cool (hot metal) by thrusting into water or other liquid.
Tempered: Having the requisite degree of hardness or elasticity. Used of glass or a metal.
Hot Forged: 80mm -1200mm
Black, Turned & Polished
Test: Ultrasonic test according to SEP 1921-84
Certificate of Quality: issued in English, in addition the normal terms, production
process, the mechanical property (yield strength, tensile strength,
elongation and hardness), forged ratio, UT test result, Grain size,
heat treatment methods and the sample of is shown on the
Certificate of Quality.