Chinese wholesale Forged Ring Expander - Forged Tubes – DHDZ

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With our outstanding administration, powerful technical capability and strict top quality handle procedure, we go on to provide our purchasers with reliable good quality, reasonable selling prices and excellent services. We goal at becoming certainly one of your most responsible partners and earning your gratification for Forging Mold, Stainless Steel Ring, Fittings Flange, Our enterprise insists on innovation to promote the sustainable advancement of organization, and make us become the domestic high-quality suppliers.
Chinese wholesale Forged Ring Expander - Forged Tubes – DHDZ Detail:

Open Die Forgings Manufacturer In China

FORGED TUBE/ HOLLOW TUBE /FORGED SEAMLESS TUBE

Max. O.D. Max. Length Max. Weight
1000mm 3000mm  12 000 Kgs

DHDZ manufactures seamless forged, heavy wall hollow and sleeves in a variety of customized configurations as per customer requirements. Seamless forged hollows are ideal for high-stress applications and harsh environments due to their durability, strength and corrosion resistance. Hollows can be produced not only in a straight cylindrical shape, but with unlimited variations of O.D.s and I.D.s, including tapers.

Additionally DHDZ offers all downstream processing including heat treatment, machining and mechanical and non-destructive testing, upon request. Contact us today with your exact specifications, our team will work with you to capitalize on our capabilities to minimize material waste and reduce process inefficiencies.

Common used material: 1045 | 4130 | 4140 | 4340 | 5120 | 8620 | 42CrMo4 | 1.7225 | 34CrAlNi7 | S355J2 | 30NiCrMo12 |22NiCrMoV |EN 1.4201 |42CrMo4

Shanxi DongHuang Wind Power Flange Manufacturing Co., LTD., as an ISO registered certified forging manufacturer, guarantee that the forgings and/or bars are homogenous in quality and free of anomalies which are detrimental to the mechanical properties or machining properies of the material.

Product Description

We are one leading producer of AISI 4140, SAE 4140 Forged/forging pipes, AISI 4140, SAE 4140 Forged/forging tubes, AISI 4140, SAE 4140 Forged/forging hollow bars, 42Crmo4 Forged/forging pipes, 42Crmo4 Forged/forging tubes, 42Crmo4 Forged/forging hollow bars, 1.7225 Forged/forging pipes, 1.7225 Forged/forging tubes, 1.7225 Forged/forging hollow bars factory from china.

We could produce AISI 4140, SAE 4140 Forged/forging pipes, AISI 4140, SAE 4140 Forged/forging tubes, AISI 4140, SAE 4140 Forged/forging hollow bars, 42Crmo4 Forged/forging pipes, 42Crmo4 Forged/forging tubes, 42Crmo4 Forged/forging hollow bars, 1.7225 Forged/forging pipes, 1.7225 Forged/forging tubes, 1.7225 Forged/forging hollow bars with diameters ranging from 100MM to 1200MM, with lenth from 100MM to 10000MM, the weight from 10KGS to 15000KGSs.

We could do rough or final machined of AISI 4140, SAE 4140 Forged/forging pipes, AISI 4140, SAE 4140 Forged/forging tubes, AISI 4140, SAE 4140 Forged/forging hollow bars, 42Crmo4 Forged/forging pipes, 42Crmo4 Forged/forging tubes, 42Crmo4 Forged/forging hollow bars, 1.7225 Forged/forging pipes, 1.7225 Forged/forging tubes, 1.7225 Forged/forging hollow bars as per the drawing of the clients

Heat treatment: Normalized / Annealed / Quenched / tempered
Surface Treatment: painting, plating, polishing, black oxide, transparent anti-rust oil
Quality control: UT, MT, RT, PT, chemical composition test, mechanical property test, etc.
Inspection
1. Raw material certificate(material chemical composition)
2. Heat treatment sheet report
3. Dimension inspection report
4. UT test report
Delivery condition
Hot forged +Rough machined (black surface after Q /T)+ Turned
Competitive Advantage
Quality control and management to the whole produce process, including ingot smelting, forging, heat treatment, machining and strictly final inspection prior to delivery.
Excellent product quality and service, competitive price, "in-time" delivery

Case: Steel Grade AISI 4140 Alloy Steel

Physical Properties

Properties Metric Mperial
Density  7.85 g/cm3 0.284 lb/in³
Melting point 1432°C 2610°F

AISI 4140 Alloy Steel Relevant Specifications and Equivalents

AISI 4130

C

Mn

Si

P

S

Cr

Mo

Ni

Cu

Mo

0.38 – 0.43

0.75 – 1.00

0.15 – 0.35

0.030 max

0.040 max

0.80-1.10

0.15-0.25

 

0.25

max

0.35

max

0.15-0.25


ASTM A29/A29M

DIN17350

  BS 970

JIS G4105

GB/T 3077

AS 1444

ISO 683/18

AISI 4140

1.7225/

42CrMo4

SCM440

42CrMo

4140

25CrMo4

42CrMo4

Forging (Hot Work ) Practice , Heat Treatment Proc

Forging

1093-1205℃

Annealing

778-843℃ furnace cool

Tempering

399-649℃

Normalizing

871-898℃ air cool

Austenize

815-843℃ water quench

Stress Relieve

552-663℃

Quenching

552-663℃


Rm - Tensile strength (MPa) (Q +T)

≥930

Rp0.2 0.2% proof strength (MPa) (Q +T)

≥785

KV - Impact energy (J)

(Q +T)

+20° 
≥63

A - Min. elongation at fracture (%)(Q +T)

≥12

Z - Reduction in cross section on fracture (%)(N+Q +T)

≥50

Brinell hardness   (HBW):   (Q +T)

≤229HB

ADDITIONAL INFORMATION
REQUEST A QUOTE TODAY

OR CALL: 86-21-52859349


Product detail pictures:

Chinese wholesale Forged Ring Expander - Forged Tubes – DHDZ detail pictures

Chinese wholesale Forged Ring Expander - Forged Tubes – DHDZ detail pictures


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Our staff are usually in the spirit of "continuous improvement and excellence", and while using the top-quality high-quality items, favorable value and superior after-sales services, we try to acquire each and every customer's belief for Chinese wholesale Forged Ring Expander - Forged Tubes – DHDZ , The product will supply to all over the world, such as: St. Petersburg, America, Seychelles, So that you can utilize the resource from the expanding info in international trade, we welcome shoppers from everywhere on-line and offline. In spite of the good quality solutions we offer, effective and satisfying consultation service is supplied by our specialist after-sale service team. Product lists and detailed parameters and any other info weil be sent to you timely for your inquiries. So please make contact with us by sending us emails or call us if you have any questions about our corporation. ou may also get our address info from our web page and come to our company to get a field survey of our merchandise. We are confident that we are going to share mutual achievement and create strong co-operation relations with our companions in this marketplace. We're searching forward for your inquiries.
  • The accounts manager made a detailed introduction about the product, so that we have a comprehensive understanding of the product, and ultimately we decided to cooperate.
    5 Stars By Louis from Plymouth - 2017.02.28 14:19
    We are old friends, the company's product quality has been always very good and this time the price is also very cheap.
    5 Stars By Carlos from Anguilla - 2017.10.23 10:29
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