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Guangzhou Changfeng Steel Co., LTD
Home ProductsHot Rolled Alloy Steel

1.7225 SCM440 SAE4140 Q+T Steel Round Bar For Mechanical / Hot Rolled Flat Bar

China Guangzhou Changfeng Steel Co., LTD certification
China Guangzhou Changfeng Steel Co., LTD certification
Gold supplier! Arranged shipment very fast, quality is super good. They are one of our best suppliers, will do more business with them in the future!

—— Ms Nguyen Thi Hong

We bought 7 containers from them in 2017, no quality problems. The boss is very nice and professional, good business parner!

—— Mr. Wan Rusli

Good job! Shipment was arranged fast, giving lots of good suggestions before place order, saved me time and money.

—— Mrs. Natntia Jitaniyompanich

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1.7225 SCM440 SAE4140 Q+T Steel Round Bar For Mechanical / Hot Rolled Flat Bar

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Large Image :  1.7225 SCM440 SAE4140 Q+T Steel Round Bar For Mechanical / Hot Rolled Flat Bar

Product Details:
Place of Origin: CHINA
Brand Name: BAO STEEL
Certification: ISO/TUV
Model Number: 42CrMo/SAE4140/1.7225/EN19/SCM440
Payment & Shipping Terms:
Minimum Order Quantity: 3MT
Price: USD1050-1200/T
Packaging Details: Bundles/wooden case
Delivery Time: 15-20DAYS
Payment Terms: L/C, T/T
Supply Ability: 1000TON/M
Detailed Product Description
Steel: Alloy Shape Option: Flat Bar/Round Bar
Delivery Condition: Black Surface/Machined/Peeled/Polished/Bright Application: For Main Shaft Of Steamer, Bolt And Shank
High Light:

special alloy steel

,

hot rolled steel plate

1.7225 SCM440 SAE4140 Q+T Steel Round Bar and Flat Bar for Mechanical
1, Equivalent grades:

GB(China)DIN(German)AISI(USA)JIS(Japan)
42CrMo1.7225SAE4140SCM440


2, Perform Standard: GB/T 3077-1999

CSiMnCrMoPSNi
0.38~0.450.17~0.370.60~0.900.90~1.200.15-0.25≤0.018≤0.030≤0.012


3, Available size(mm)

Flat Bar Size(mm)Round bar Size(mm)
ThicknessWidthLengthDiameterLength
10-200155-22002000-600020-2003000-6000

Listed specifications are only typical grades; products of required specifications can be developed/produced per international, Chinese or industry standards, or based on agreements with customers.
4, Application:
It used for section large forgings, such as locomotive traction gears, with supercharger drive gear,
the rear axle, the connecting rod and the spring load greatly clip,oil drill pipe joints and fishing tools,etc.

5, 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)

6, Feature:
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;
7, Ready Stock:
Round Bar diameter 14-460mm.All the sizes as require can be customerized as fresh production with MOQ.
8, Delivery state:
Hot rolled, black, hardness or tempered hardness:28-34 HRC.
Annealing: HBS<=235.
9, 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.
10, 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.


Product Pictures
1.7225 SCM440 SAE4140 Alloy Tool Steel Bar and Flat Bar
1.7225 SCM440 SAE4140 Alloy Tool Steel Bar and Flat Bar
1.7225 SCM440 SAE4140 Alloy Tool Steel Bar and Flat Bar
Factory Show
1.7225 SCM440 SAE4140 Alloy Tool Steel Bar and Flat Bar
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1.7225 SCM440 SAE4140 Alloy Tool Steel Bar and Flat Bar

Contact Details
Guangzhou Changfeng Steel Co., LTD

Contact Person: Echo

Tel: +86 18148729336

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