This medium carbon alloy is widely used in many common parts requiring high tensile strength and toughness. 4140 contains chromium and molybdenum as alloying elements, which can be heat treated in a wide range to provide the comprehensive advantages of appropriate hardness, strength and ductility. This steel is susceptible to flame or induction hardening where local hardness may be required.
Chemical information
(C) 0.38 ~ 0.45
(Si) 0.17 ~ 0.37
(Mn) 0.50 ~ 0.80
(P) of 0.035 or less
(S) of 0.035 or less
(Cr) 0.9 ~ 1.20
(Ni) of 0.30 or less
(Mo) 0.15 ~ 0.25
(Cu) of 0.30 or less
Mechanical properties
Tensile Strength (ksi)
137
Yield Strength (ksi)
115
Elongation (% in 2")
21
Brinell
315
Rockwell
C33, A66
Application
Shafts
Gears
Nuts
Bolts
Conveyor rolls
Piston Rod
Our strengths
Custom - we are the manufacturer! Samples &oem&odm are available!
Safety - we have our own test chart, and all products are strictly tested in the factory.
Certificates - we have ISO and quality management system certificates.
High quality - our company uses the most advanced equipment to produce the best quality products.
FAQ
Q1: What are the main products of your company?
A1: Our main products are stainless steel plates/sheets, coiled tubes, round/square tubes, bars, channel steel, etc.
Q2: How do you control the quality?
A2: The factory inspection certificate is provided with the goods and can be inspected by a third party. We also have ISO, SGS.
Q3: What are the advantages of your company?
A3: Compared with other stainless steel companies, we have many professionals, technicians, more competitive prices and the best after-sales service.
Q4: How many countries have you exported?
A4: Mainly exported to more than 50 countries such as the United States, Russia, Britain, Kuwait, Egypt, Turkey, Jordan and India.
Q5:Can you provide samples?
A5: As long as you contact us, we can provide stock samples free of charge.
It takes about 5-7 days to customize samples.
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