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SCM440 Q&T alloy steel round bar
SCM440 Q&T alloy steel round bar
SCM440 Q&T alloy steel round bar
SCM440 Q&T alloy steel round bar
SCM440 Q&T alloy steel round bar
  • SCM440 Q&T alloy steel round bar
  • SCM440 Q&T alloy steel round bar
  • SCM440 Q&T alloy steel round bar
  • SCM440 Q&T alloy steel round bar
  • SCM440 Q&T alloy steel round bar

SCM440 Q&T alloy steel round bar

    Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
    Min. Order: 5 Metric Ton
    Delivery Time: 30 Days

Basic Info

Model No.: scm440

Standard: JIS

Application: Structural Steel Bar

Special Use: Cold Heading Steel

Type: Alloy Steel Bar

Steel Grade: Other

Technique: Other

Surface Treatment: Other

Alloy: Alloy


Additional Info

Packaging: Anti-rusty standard seaworthy

Productivity: 3000 tons per month

Brand: LE REN

Transportation: Ocean,Land,Air

Place of Origin: Shandong Provnce, China

Supply Ability: 3000 tons per month

Certificate: ISO 9001

HS Code: 7228309000

Port: Qingdao Port

Product Description

SCM440 Q&T alloy steel Round Bar

SCM440 steel is a Chromium-Molybdenum through-hardening steel of medium hardenability. It is a general purpose high-tensile steel with medium strength level and good impact properties.

Quenching and Tempering, abbreviated as Q&T is a king of processing that strengthen or harden steel bars by heating the materials and then cooling in water, oil or other liquid medium, that rapidly the change from austenite to perlite to get the proper properties for various usage. The quenched & tempered steel bar materials are usually with carbon from 0.30% - 0.60%, it is widely used as merchant bars in components of various machines.

SCM440 material quenched and tempered q&t steel bar we supply includes following advangtages:

Consistent mechanical properties

Deep mechanical properties (from surface to the center according to your requirement)

Even hardness on the whole bars/Tougher and Increased strength

No brittle, UT testing/Precision size tolerance/Good straightness

Good Roughness/Professional technical service/Competitive price/Fast delivery

Specification of SCM440 material quenched and tempered q&t steel bar we supply:

1. SCM440 steel equivalent material:





AS /NZS1444


Aisi 4140 / sae 4140 / astm 4140

42CrMo4 / 42CrMoS4


AS 4140

2. SCM440 steel chemical composition:


Chemical Composition %












0.60- 0.90

0.035 max

0.035 max



3. SCM440 steel mechanical properties:

Mechanical Properties

Yield Strength (MPa)

Tensile Strength (MPa)


Reduction of area


930 min

1080 min

12% min

45% min

63 min

4. SCM440 steel applications:

high strength stud bolt, Threaded Rods, wind power bolt, prestressed anchor bolts, post stressed anchor bolt, Steel Tie Rod, tie bar, tension rod, Tension Bar etc. Shaft, axle shaft, crankshaft, shaft for sleeve, linear shaft, pump shaft, rotor shaft, sensor shaft, spline shaft, drive shaft, mandrel shaft, transmission shaft, screw rod etc. CNC machines, precision CNC machines etc. Ejector pins and Ejector rods

5. Production line:

Qt Bar

6. Production Facilities:

Heat Treatment

7. Inspection:


8. Package:

Threaded Rod Packages

9. RFQ:

Q1. Are you a manufactuer?
A1:Yes, we have our own factory and labatory to produce and inspect products.

Q2. How to ensure that every process's quality?

A2:Every process will be checked by our quality inspection department which insures every product's quality. we will personally go to tIn the production of products,he factory to check the quality of products.

Q3.How long is your delivery time?
A3:Our delivery time is generally 30 to 45 days. Or according to the quantity.

Q4. What is your payment method?
A4:30% value of T/T in advance and other 70% balance on B/L copy.
Q5.Can you provide a sample?
A5:Sure, Our sample is provided free of charge, but not including courier fees

Looking for ideal Scm440 Qt Steel Round Bar Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the Scm440 Heat Treatment are quality guaranteed. We are China Origin Factory of Scm440 Mechanical Properties. If you have any question, please feel free to contact us.

Product Categories : Heat Treated Steel Bar And Tube > Quenched And Tempered Steel Bar

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