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Forged Ring

Inspection Instrument: Ultrasonic Flaw Detector: RFD8000 Material: X46Cr13 (4Cr13/INOX) / SAE-8620(20CrNiMo) / 20CrMnTi (20MnCr5) (for ring-die); SAE-4140 / 20CrMnTi (20MnCr5)/ 40Cr / SAE-1045 (for Roller shell)

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PRODUCT DETAILS


Forged Ring State		Delivery State with 5mm allowance


Profiled Forged Ring State		Delivery State with 5mm allowance


Inspection		Container Loading

Inspection Instrument: Ultrasonic Flaw Detector: RFD8000

Material: X46Cr13 (4Cr13/INOX) / SAE-8620(20CrNiMo) / 20CrMnTi (20MnCr5) (for ring-die); SAE-4140 / 20CrMnTi (20MnCr5)/ 40Cr / SAE-1045 (for Roller shell)

Technical Specification

DIN Standard	X46Cr13(INOX)	20CrNiMo& 20CrMnTi and 42CrMo
Other Grade	AISI 420	AISI8620 and AISI4140
Material Type	Stainless Steel	Alloy Steel
Hardness	2x soft annealed max. 207HB	annealed to 170-210 HB

Material Allowance	+5.0 mm (OD, H) radius / -5.0 mm (ID) radius
Surface Finished	Machined(rough turned with material allowance)
US Test / Inspection	SEP 1921 PG3, D, d (12/84) / EN 10204/3.1 (CA, BHN, US)
Grain Size	(ASTM E112):6-8 ASTM

CHEMICAL COMPOSITION

DIN	X46Cr13	AISI 8620	AISI 4140	20CrMnTi
Werkstoff No.:	1.4034	1.6523	1.7225	20CrMnTi
C%	0.42 - 0.50	0.18 - 0.23	0.38 - 0.43	0.17-0.23
Mn%	<1.00	0.70 - 0.90	0.75 - 1.00	0.80-1.10
P%	<0.040	0.040	0.035	<0.035
S%	<0.030	0.040	0.035	<0.035
Si%	<1.00	0.20 - 0.35	0.20 - 0.35	0.17-0.37
Ni%	0.31-1	0.40 - 0.70		<0.30
Cr%	12.5 - 14.5	0.40 - 0.60	0.80 - 1.10	1.00-1.30
Mo%		0.15 - 0.25	0.15 - 0.25	<0.25
Ti%				0.04-0.10

SUPPLIED DOCUMENTS

Chemical Analysis Certificate / Ultrasonic Test Certificate / Mechanical Properties Certificate / Hardness Certificate / Grain Size Certificate / Charge Identification ( Order x Item )

NOTES: FORGINGS SHALL NOT BE WELDED OR REPAIRED.

Packaging And Shipping

The company always adheres to the business philosophy of "quality first, reputation foremost" and the business principle of "customer first, quality as the soul". We strictly follow ISO quality standards to control the entire production process, strive for excellence in every product, and do our best to provide customers with safe, reliable, high-quality, well-designed, cost-effective products and efficient and fast delivery services.

EXHIBITION

All of the company's products have passed the strict technical testing and certification of relevant national departments. With stable and reliable quality and efficient production and supply capabilities, the company has won the wide recognition and good reputation of global customers and continues to export high-quality Chinese pellet mill core component products and advanced manufacturing technology experience to overseas markets.

Exhibition

FAQ

Q: What are the common wear-resistant materials used in ring dies?

A: The mainstream materials used are high-chromium stainless steel and alloy steel forging. For processing biomass raw materials such as wood chips and straw, high wear-resistant alloy steel is preferred. Corrosion-resistant stainless steel ring dies are suitable for processing livestock, poultry and aquatic feed.

Q: Are the ring die and pressure roller skin core components of a pellet mill?

A: Both are core consumable parts in pelleting. The material is extruded and formed by the ring die hole, and the pressure roller skin presses the material to complete the pelleting operation, which directly affects the pelleting quality and the overall machine output efficiency.

Q: What are the advantages of forged rings compared to ordinary cast rings?

A: The internal metal structure of the forging is dense, without defects such as pores or sand holes, and its tensile strength, wear resistance and fatigue resistance are more outstanding, resulting in a longer service life under long-term continuous operation.

Q: What equipment is suitable for forged rings?

A: Forged rings are mostly used for ring die blanks and load-bearing ring components in large machinery. They are semi-finished products forged from ring dies and are suitable for various high-load pellet mill pressure-bearing structures.

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