| Place of Origin: | China (Mainland) |
|---|---|
| Brand Name: | ZYZXDY |
| Model Number: | roller |
| length: | <=15m |
| OD: | <=1000mm |
Quick Details
Specifications
Quick details:
1.Material: alloy steel
2.Certificate: API & ISO
3.Test: UT & MT tested
4.Melting: EAF+LF+VD
Material: 4140,4130,4330,etc
Manufacturing technique:
1. Process: EAF + LF + VD + Forged + Heat Treatment (optional)+Fine machined
2. Heat treatment: Normalized / Annealed / Quenched / tempered
3. Delivery condition: Hot forged +Rough machined +Turned (optional)+fined machined
Chemical composition:
4130 chemical component | |||||||
chemical | C | Si | Mn | Cr | Mo | Cu | P,S |
4130 | 0.28-0.33 | 0.15-0.35 | 0.40-0.60 | 0.80-1.10 | 0.15-0.25 | 0.25max | 0.02max |
Company information:
1. We purchase steel ingot from Chinese well known and qualified steel factory
2.Melting process: EAF + LF +VD
3.Each product can be traceable. QC die-stamp the exclusive serial No. on both
ends of the raw material, and perform inspection after each producing processing
and keep the record acc. to QMS.
4.We are manufactory and we have skilled production team and technology team.
5.We do professional inspection after each process and also we accept third party inspection.
Reports:
Original mill certificate
Material test report
Dimension inspection report
Ultrasonic inspection report
Magnetic particle inspection report