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Hot Rolled Forging Tools 180mm 42CrMo4 Alloy 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!

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

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Hot Rolled Forging Tools 180mm 42CrMo4 Alloy Flat Bar

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Large Image :  Hot Rolled Forging Tools 180mm 42CrMo4 Alloy Flat Bar

Product Details:
Place of Origin: CHINA
Brand Name: Changfeng
Certification: ISO/ Mill Certificate
Model Number: 1.7225 SCM440 SAE4140
Payment & Shipping Terms:
Minimum Order Quantity: 5T
Price: 810-920usd/t
Packaging Details: bulk packing/wooden case
Delivery Time: 15-20 days
Payment Terms: T/T, L/C
Supply Ability: 1000t/Mouth
Detailed Product Description
Thickness: 13-180mm Heat Treatment: Annealing/Q+T
Test: SGS/Ut100%/Elements Testing Technology: Hot Rolled
HS Code: 7228300000
High Light:

180mm Alloy Flat Bar

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13mm Alloy Flat Bar

SCM440/SAE4140/1.7225 steel flat bar for mechanical with width 2000-2200mm

 

SCM440 SAE4140 1.7225 42CrMo4 air hardening tool steel alloy Flat Bar

EN 1.7225---4140 is a high alloy austenitic stainless steel. The grade is intended for use under severe corrosive conditions. The steel grade was originally developed to resist corrosion in dilute sulphuric acid. EN 1.7225 is fully austenitic, and is less sensitive to precipitation of ferrite and sigma phase than conventional austenitic grades with high molybdenum content. Due to the combination of relatively high contents of chromium, nickel, molybdenum and copper, EN 1.7225 has good resistance to general corrosion, particulary in dilute sulphuric acid. It is non-magnetic in the annealed condition but may become slightly magnetic as a result of cold-working or welding.

 

Chemical composition(%):

C Si Mn Cr P S Mo
0.38-0.45 0.17-0.37 0.50-0.80 0.90-1.20 ≤0.035 ≤0.035 0.15-0.25


Equivalent grades:

GB(China) DIN(German) AISI(USA) JIS(Japan)
42CrMo 1.7225 SAE4140 SCM440



Available size(mm):

Flat Bar Size(mm) Round bar Size(mm)
Thickness Width Length Diameter Length
13-180 200-2200 2000-10000 20-260 3000-6000


 

Appliation:
Production load large, complex shape and valuable tool (e.g, scraper, gear, milling cutter, drilling, tapping, etc.)Cold forging die, forging tools;Strip cutting machine, heading forming die.

 

Hardness:

Anneal≤217HB

Q+T 28-32HRC

 

 

Heat Treatment

1) Forging

Preheat the steel carefully, then raise the temperature to 1150-1200°C for forging. Do not forge below 850°C.

2) Annealing

Heat the AISI 4140 slowly to 800-850°C and allow enough time for the steel to be thoroughly heated. Cool slowly in the furnace to 480°C followed by air cooling.

3) Stress Relieving

When parts are heavily machined, ground or otherwise subject to cold work, stress relieving will be beneficial prior to hardening.

4) Hardening

AISI 4140 steel is usually supplied ready heat treated to 18-22HRC. If further heat treatment is required annealed AISI 4140 should be heated slowly to 840-875°C and after adequate soaking at this temperature quench in oil. Temper as soon as the tools reach room temperature.

5) Tempering

Heat the AISI 4140 carefully to a suitable temperature selected by reference to a tempering chart or table (usually between 550-700°C, soak at the temperature for 2 hours per 25mm of ruling section, then allow to cool in air. Tempering between 250-375°C is not advised as tempering within this range will seriously reduce the impact value.

Hot Sale Products for Hot/Cold work Mold Steel

STANDARD/GRADE Flat Bar Size(mm) Round bar Size(mm) Technics
DIN AISM JIS GB(China) Thickness Width Length Diameter Length
1.2311 P20 PDS-3 3Cr2Mo 10-460 155-2200 1600-10000 12-120 4000-6000 Forged, Hot Rolled
1.2738 P20+Ni - 3Cr2NiMnMo 21-1200 1600-2200 4000-10000 - -
1.2379 D2 SKD11 Cr12Mo1V1 6-160 155-810 3000-6000 14-80 3000-6000
1.2080 D3 SKD1 Cr12 12-90 155-610 3000-6000 10-180 3000-6000
1.2083 420 - 4Cr13 12-260 205-2000 1600-6000 12-500 3000-6000
1.2344 H13 SKD61 4Cr5MoSiV1 16-500 205-1000 3000-6000 150-450 3000-6000
1.2510 O1 SKS3 9CrWMn 9-120 155-610 3000-6000 8-80 3000-6000
1.7225 SAE4140 SCM440 42CrMo 20-280 155-2200 2000-6000 16-450 3000-10000

 

 

Product:

Hot Rolled Forging Tools 180mm 42CrMo4 Alloy Flat Bar 0

 

Contact Details
Guangzhou Changfeng Steel Co., LTD

Contact Person: Echo

Tel: +8613535323261

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