AISI4145H/SCM445 /50CrMo4/din 1.7228 forged steel shaft for mechnical purpose, OD: 80-1200mm

Application:
Foodstuff, Gas, metallurgy, biology, electron, chemical, petroleum, boiler, nuclear energy, Medical equipment, fertilizer etc

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

Equivalent Steel Grade

Mechanical Properties

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.

SIZE RANGE:

Round:

Hot Forged: 80mm -1200mm

SURFACE FINISHES:

Black, Turned & Polished

Test: Ultrasonic test according to SEP 1921-84

 We, Shanghai Unite Steel are committed to integrate engineering steel resources in china and serve the global engineering steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise.

In the aspect of resources and information, we have established cooperative and stronger relationship with nearly hundred enterprises, either state-owned or private owned in china, such as: DAYE Special Steel-a famous steel enterprise with the longest steelmaking history; BAO Steel, and Dongbei Special Steel Group-the biggest special steel manufacturer; TPCO, VALIN-largest seamless steel tube production enterprise; What's more, we have built long, deep and close business relationship with dozens of steel companies, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want!