China One of Hottest for Round Bar Forging - Forged Tubes – DHDZ Manufacturer & Supplier

One of Hottest for Round Bar Forging - Forged Tubes – DHDZ

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With our abundant experience and considerate products and services, we have been recognized to be a reputable supplier for a lot of global consumers for Jack Screw Flange, Ansi Flange, Flange Socket, Welcome you to join us together to make your business easier. We are always your best partner when you want to have your own business.

One of Hottest for Round Bar Forging - 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

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

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"Quality initially, Honesty as base, Sincere company and mutual profit" is our idea, in order to create repeatedly and pursue the excellence for One of Hottest for Round Bar Forging - Forged Tubes – DHDZ , The product will supply to all over the world, such as: United States, Canada, Armenia, For many years, we now have adhered to the principle of customer oriented, quality based, excellence pursuing, mutual benefit sharing. We hope, with great sincerity and good will, to have the honor to help with your further market.

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It can be said that this is a best producer we encountered in China in this industry, we feel lucky to work with so excellent manufacturer.

By Marina from Japan - 2018.11.04 10:32

As an international trading company, we have numerous partners, but about your company, I just want to say, you are really good, wide range, good quality, reasonable prices, warm and thoughtful service, advanced technology and equipment and workers have professional training, feedback and product update is timely, in short, this is a very pleasant cooperation, and we look forward to the next cooperation!

By Hedy from Sri Lanka - 2017.08.15 12:36

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