Basic Info.
Model NO.
4140
Usage
Oil/Gas Drilling
Section Shape
Round
Transport Package
Anticorrosion Seaway Packages
Specification
OD 30-850mm
Trademark
SHUNFU
Origin
China
Production Capacity
100000 Tons Per Year
Product Description
AISI SAE 4140 Forged Q+T Boring/Drill Alloy Steel Hollow Bar
Introduce
We are Chinese professional manufacturer of forged QT boring steel bar for oil services. We can supply multiple AISI/SAE standard alloy steel materials and forged bar diameter 80-500mm, boring hole diameter 10-250mm, max boring length 14 meters.
Product advantage
Boring one side: no step in the boring bar
High-tech Boring Equipment: Good Straightness and Roughness, Tiny Tolerance and Roundness
Stable mechanical property in materials after QT process
Chemical component according to America standard 100%
Ensure UT and drift test for each pieces
Company advantage
We have decades of produce experience in QT/Boring process and strict quality management system(ISO NQA 9001)
We cooperated with several middle-east oil gas companies for many times and have API certificates.
Our sales team are professional steel industry staff and exporter with fluent English.
We accept variety convenient payment ways and the third parties inspection organization.
Chemical Properties
Specification
Introduce
We are Chinese professional manufacturer of forged QT boring steel bar for oil services. We can supply multiple AISI/SAE standard alloy steel materials and forged bar diameter 80-500mm, boring hole diameter 10-250mm, max boring length 14 meters.
Product advantage
Boring one side: no step in the boring bar
High-tech Boring Equipment: Good Straightness and Roughness, Tiny Tolerance and Roundness
Stable mechanical property in materials after QT process
Chemical component according to America standard 100%
Ensure UT and drift test for each pieces
Company advantage
We have decades of produce experience in QT/Boring process and strict quality management system(ISO NQA 9001)
We cooperated with several middle-east oil gas companies for many times and have API certificates.
Our sales team are professional steel industry staff and exporter with fluent English.
We accept variety convenient payment ways and the third parties inspection organization.
Chemical Properties
| Grade | C | Cr | Mn | Si | Mo | S | P |
| 4140 | 0.38-.43% | 0.80-1.10% | 0.75-1.0% | 0.15-0.30% | 0.15-0.25% | 0-0.040% | 0-0.035% |
Specification
| Product Name | Forged QT Boring Alloy Steel Bar For Oil Services |
| Specification | API 5CT/5CP/6A |
| Steel Grade | 4130, 4140, 4145, 4145H, 4330V, 4137, 4340 |
| Process | Hot Forged+QT+Boring |
| Forged Bar Diameter | 8-500mm |
| Boring Hole Diameter | 10-250mm |
| Length | Max14 meters |
| Inspection | Size, Chemical, Mechanical, UT, Drift Test, Low/High Temp. Impact |
| Certificate | MTC, CO/FE/FA, BV/SGS |
| MOQ | 1-5 tons |
| Delivery Time | 10-30 days |
| Trade Item | FOB CIF CFR PPU PPD |
| Packaging | Loose/Bundle/Wooden Pallet/Wooden Box/Plastic Cloth Wraps /Plastic End Caps/Beveled Protector |
