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Hot Rolled Steel Flat Bar SCM440 4140 1.7225 42CrMo For Mechanical Gear Bolt Use

Guangzhou Changfeng Steel Co., LTD

Hot Rolled Steel Flat Bar SCM440 4140 1.7225 42CrMo For Mechanical Gear Bolt Use

Brand Name : CF Steel

Model Number : 1.7225, SCM440, SAE4140, 42CrMo

Certification : ISO / Mill Test Certificate

Place of Origin : CHINA

MOQ : Negotiable

Price : Negotiable

Payment Terms : T/T, L/C, D/P, Western Union

Supply Ability : 5000 tons / month

Delivery Time : within 15 working days

Packaging Details : Standard Export Packing or for Customers' Request

Heat Treatment : Annealed / Q+T

Delivery condition : Hot rolled or Forged

Test : SGS / UT 100% / Element testing

Surface : Black

Standard : AISI, ASTM, DIN, GB

Process : EAF+LF+VD+IC

Shape : Flat bar

Performance : High hardness and good machinability

Flaw detection : CC / DD/ EE

Our Service : CIF / FOB / EXW

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Hot Rolled Steel Flat Bar SCM440 4140 1.7225 42CrMo For Mechanical Gear Bolt Use

1. Chemical Composition (%)

C Si Mn Cr Mo P S Ni
0.38~0.45 0.17~0.37 0.50-0.80 0.90~1.20 0.15-0.25 ≤0.03 ≤0.03 ≤0.25

2. Application


It's application is as below:

A. The section of large forgings

B. Locomotive traction gears

C. The rear axle

D. The connecting rod

E. The spring load clip

F. Oil drill pipe joints

G. Fishing tools.


2. Features


1) Weldability suffers with increasing chromium content;
2) High temperature strength and high pressure hydrogenation properties are promoted by chromium and molybdenum;
3) Molybdenum significantly reduces temper brittleness;
4) Chromium renders steel oil hardenable and increase hardenability;
5) Chromium molybdenum high tensile steel with yield strength of 550N/mm2;


3. Mechanical Properties


Tensile strength:σb (MPa):≥1080(110)
Yield strength:σs (MPa):≥930(95)
Elongation:δ5 (%):≥12
Section shrinkage:ψ (%):≥45
Impact work:Akv (J):≥63
Impact toughness value:αkv (J/cm²):≥78(8)


4. Available Size

Flat Bar (mm) Round bar (mm)
Thickness Width Length Diameter Length
12-280 2200 5800 16-450 3000-6000



5. Delivery state


A. Hot rolled or forged

B. Black surface

C. Q+T: hardness 28-34 HRC or Annealing:HBS<=235.


6. Delivery time


For abundant stock, 15-20 days.For customized products, 30-50 days.
We have full set of equipement (sawing machine/grinding/polishing machine) to make customer's specification.

7. Our service

1) Sizes, materials and others are all at your requirements and can be changed;
2) Price varies on materials, dimensions, finish craft and different payments;
3) We are direct manufacture in machinery manufacturing work with experience of several decades;
4) Detail production design will be made according to information you offered;
5) We have adequate inventory, so that we can quick delivery;
6) The most important is that we have advanced equipment.

8. Product picture

Hot Rolled Steel Flat Bar SCM440 4140 1.7225 42CrMo For Mechanical Gear Bolt Use

Hot Rolled Steel Flat Bar SCM440 4140 1.7225 42CrMo For Mechanical Gear Bolt Use

Hot Rolled Steel Flat Bar SCM440 4140 1.7225 42CrMo For Mechanical Gear Bolt Use

Warehouse
Hot Rolled Steel Flat Bar SCM440 4140 1.7225 42CrMo For Mechanical Gear Bolt Use


Processing

Hot Rolled Steel Flat Bar SCM440 4140 1.7225 42CrMo For Mechanical Gear Bolt Use


Strict Quality Control


Hot Rolled Steel Flat Bar SCM440 4140 1.7225 42CrMo For Mechanical Gear Bolt Use


Product Tags:

alloy steel flat bar

      

tool steel flat bar

      
Wholesale Hot Rolled Steel Flat Bar SCM440 4140 1.7225 42CrMo For Mechanical Gear Bolt Use from china suppliers

Hot Rolled Steel Flat Bar SCM440 4140 1.7225 42CrMo For Mechanical Gear Bolt Use Images

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