Custom 1045 4340 Steel Drilling Mill Roll Shaft for Large Equipment

• Customization: Available
• Processing Object: Metal
• Molding Style: Forging
• Model NO.: steel drilling mill roll shaft
• Molding Technics: Pressure Casting
• Application: Machinery Parts
• Material: Steel
• Heat Treatment: Quenching
• Surface Treatment: Polishing
• Forging Tolerance: +/-0.1mm
• Standard: ASTM
• Certification: CE, ISO 9001:2000, ISO 9001:2008
• Size: 1/4'' to 500''
• Name: 4340 Steel Drilling Roller
• Cncturning: Roungh Machining
• Coating: Galvanized or Oil Protected
• Transport Package: Wooden Package and Steel Package
• Specification: 4140 steel drilling shaft
• Trademark: steel roll shaft
• Origin: Jiangsu China
• HS Code: 73260
• Production Capacity: 3000ton/Month

Product Description

Name:Forging Sae4140 sae4340 42crmo4 steel drill roll shaft 

We are the manufacturer specialized in machining heavy duty forging parts for nearly 18 years.Our products, such as drive shaft, Forging Hollow Shaft, Shaft Sleeve, Eccentric shaft, Forging rod, Large bolt, Heavy Duty Hydraulic Cylinder, are widely used in coiled material, petroleum, metallurgy, mine, machinery and transportation industry etc.

Packaging & Delivery

Packaging Details:	Export standard package or according to customer requirement
Delivery Detail:	30~60days according to various quantity

Product List

Name	Technique	Material	Dia/mm	Wall thickness	Length/mm
Forging shaft	Forging+turning+grinding	alloy steel carbon steel stainless steel	200-800	----	500-20000
Hollow shaft	Forging+drilling+turning		150-800	≥15mm	≤17000
Shaft sleeve	Forge+drill & bore+turning +milling		400-700	≥15mm	≤18000
Large bolt	Rolled/forge+turning+threading		300-800	----	≤17000
Hydraulic cylinder	Forging+drill & bore+ turning		300-2000	≥10mm	≤10000
Other parts in deep-hole	Forge+ drill & bore+turning+mill		300-2000	----	≤20000

Product Fllow
1.Inquiry with drawings in details.
2.Confirm steel material, chemical compositions, mechanical properties, tolerance.
3.Confirm payment terms,order materials or check material in stock.
4.Check material chemical compositions, material weight, dimensions.
5.Cut materials record weight, making mould for casting of pr-hearting for forging.
6.Forging ratios, heat treatment ,dimension check.
7.Rough machining, UT test,heat treatment.
8.Semi-finish, quenching,
8.Fine machining, UT test, dimension inspection, mechanical properties test.
9.Customer inspection, packing, delivery arrangement.
Steel ingot making
EAF + LF + VD/VAD or ESR
Manufacturing process
EAF + LF + VD+ Forging+ Normalizing & Tempering + Rough machining + UT test + Quenching & Tempering + Precision machining
Report
Chemical composition report, Physical properties report, Heat treatment report, Dimensional inspection report, NDT report
Nondestructive test (NDT) UT ( ultrasonic testing ), MT ( magnetic particle testing ), PT ( penetrant testing)
Quality certification: ISO 9001: 2008, IQNET.

 

Item	Process	Facility	Inspection items	Standard
01	Steel material  inspection		Chemical composition (EF+LF+VD)	Material standard
			surface	Ingot inspection  specification
			Ingot type and weight	Material standard
02	Material store		Division put	warehouse management
1	Heat	Heat furnace	Temperature/Time	Heating process  specification Forging production  procedure
2 ↓	Forging	Press	Reduction ratio,forging  temperature,deformation,  Surface and dimensions	Forging process card Forging procedure
3 ↓	Heat treatment	heat treatment  furnace	heat treatment charts	1st heat-treatment card Forging procedure
4 ↓	Rough  inspection		Dimensions, apperance,  Mark	Inspection specification Forging procedure
5 ↓	Rough UT	UT equipment	Single defect, concentrated  Defects bottom wave  attenuation	UT standard or  customer's technical  requirements
6 ↓	Saw cutting	Saw machine	Dimension	IQC and forging
7 ↓	rough turning	turning-lathe	Dimension,appearance	Rough machining  drawing
8 ↓	UT	UT equipment	Single defect, concentrated  defects bottom wave attenuation	UT standard or  customer's technical  requirements
9 ↓	Q+T  heat treatment	heat treatment  furnace	heat treatment charts	Heating process  specification
10 ↓	Sampling or machining	machining tool	rough machining drawing sampling drawing	sample machining  drawing
11 ↓	mechanical  property test	tensile testing machine/ impact testing machine	ambient temperature,humidity, Test temp.Sample dimension,  test method	Standard technical specification
12 ↓	finish  machining	machining  tool	Dimension,appearance	finish machining drawing
13 ↓	UT	UT equipment	Single defect, concentrated  Defects bottom wave  attenuation	UT standard or  customer's technical  requirements
14 ↓	MT	MT equipment	Magnetic particle  indication	Test standard or  Technical requirements
15 ↓	Mark	Steel seal	marking content	Product standard Technical requirements Forging process
16 ↓	Final  inspection		Appearance, dimension, mark acceptance inspection	Product inspection  specification Product standard P.O.
17	Protection/ package	Blasting Blasting equipment	appearance coating thickness	Product standard Technical requirements