| Prod Model: |
sae4140/4340 back up rolls |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Size: |
1/4'' to 500'' |
| Name: |
SAE4340/4140 Forged Back up Roll |
| Cert: |
ISO SGS |
| Delivery: |
About 20days |
| Processing Object: |
Metal |
| Molding Style: |
Forging |
Product Description
OEM Heavy Forged back up rolls/mill rolls
Company profile
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 Flow
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
We sincerely hope establishing long and friendly business relations with clients from all over the world. Our goal is not just providing product, but also providing a complete solution including product design, tooling, fabrication and service for our customers to achieve their upmost satisfaction.
Forging weight is from 50 kg to 20 ton. Many kinds of materials, free size.
Smelting Process: EF+LF + VD+VC The process as follow: Ingot → Heat → Forging → Heat treatment (Normalizing+ tempering) → Inspection → Rough machining→ UT → 2th Heat treatment → Finishing machining → Inspection
Applications: The heavy forging: Forged ring, shaft, roller, flange, or gear is widely used for various industries For example: Metallurgy, mining, power station and so on.
Specifications:
Description
The heavy forging: Forged ring, shaft, roller, flange, or gear
Material
Alloy steel or stainless steel
Material standard
ASTM or GB/T3077-1999
Specification
As per specified requirements
Weight
Max. 250 ton
Smelting Process:
EF+LF + VD+VC
Process
Ingot→ Heat → Forging → Heat treatment (Normalizing+ tempering) → Inspection
→ Rough machining→ UT → 2ND Heat treatment → Finishing machining → Inspection
UT standard
EN10228, ASTM A388 or JB/T 5000.15-1998
Competitive Advantage:
The heavy forging is manufactured by large scale stated enterprise. Advanced technical process from smelting steel to forging and heat treat guarantees the product quality. Closed relationship with several famous stated enterprises guarantee "in-time delivery" and competitive price.
Excellent product quality and service, competitive price, "in-time" delivery
