AISI SAE 4140 Forged Q+T Boring/Drill Alloy Steel Hollow Bar

• After-sales Service: Technical/Sample/Quality
• Warranty: One Year
• Type: Seamless
• Technique: Rolled or Forged
• Material: Alloy Steel
• Surface Treatment: Black/Peeled/Polished
• 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 

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