API Spec 7-1 AISI 4145h Qt High Tensile Alloy Hollow Bar Drill Seamless Steel Pipe
Laiwu Xincheng Metal Co., Ltd.- Processing Object：Metal
- Molding Style：Forging
- Application：Oil Field
- Material：Steel
- Heat Treatment：Quenching
- Surface Treatment：Polishing
Base Info
- Model NO.：API Spec 7-1 AISI 4145H
- Forging Tolerance：-0,+3mm
- Standard：API Spec 7-1
- Certification：CE, RoHS, ISO 9001:2000, ISO 9001:2008
- Products：Hollow Bar
- Standards：API Spec 7-1
- Grade：AISI 4145h
- Transport Package：Standard Sea Worthy
- Origin：China
- Production Capacity：3000tons,Month
Description
Basic Info.
Model NO. API Spec 7-1 AISI 4145H Forging Tolerance -0/+3mm Standard API Spec 7-1 Certification CE, RoHS, ISO 9001:2000, ISO 9001:2008 Products Hollow Bar Standards API Spec 7-1 Grade AISI 4145h Transport Package Standard Sea Worthy Origin China Production Capacity 3000tons/MonthProduct Description
API Spec 7-1 AISI 4145H QT High Tensile Alloy Hollow Bar Drill Seamless Steel Pipe1.Material Introduction
AISI 4145H is a chromium - molybdenum low alloy tempered steel. It has improved hardenability and is more is commonly used in the high strength condition with min.110 KSI yield.
2.Application
AISI 4145 is more popular in larger diameters due to its increased strength and hardenability. It is commonly used in the down hole drilling tools such as drill collars. Other applications include components exposed to heavy strain, such as shafts, gear, bolts etc. AISI 4145H can also be used in hardened condition as machine parts exposed to heavy wear.
3.EQUIVALENT STANDARDS
EN 1.7225
ASTM A255
UNS G41450
AISI 4145H Modified
4.Chemical composition of 4145H
| C | Mn | Cr | Mo | Si | Ni | P max | S |
| 0.43-0.48 | 0.85-1.10 | 0.80-1.10 | 0.15-0.25 | 0.10-0.35 | 0.25 | 0.035 | 0.04 |
5.Property standard of AISI 4145H
By mm
| Dill Collar OD Range | Yield Strength | Tensile Strength | Elongation |
| mm | Mpa Min | Mpa Min | % Min |
| 70 to 98.4 | 827 | 896 | 13 |
| 101.6 to 174.6 | 758 | 827 | 13 |
| 177.8 to 279.4 | 689 | 758 | 13 |
By inch
| Dill Collar OD Range | Yield Strength | Tensile Strength | Elongation |
| inch | Ksi min | Ksi min | % Min |
| 2-3/4" to 3 7/8" | 120 | 130 | 13 |
| 4" to 6-7/8" | 110 | 120 | 13 |
| 7" to 11" | 100 | 110 | 13 |
6.Supplied Sizes Range
Diameter :70mm to 800mm
Length:100mm to 9450mm (31FT)
Condition: Hot Rolled, Polished, Ground, Rough Turned, QT
Shape:Round,Square , Forging,Hollow Bar
7.standard:API Spec 7-1 etc
8.Used for drill pipe, Drill Collar
9.Hardness Standard Range: 285HB To 340HB
kEYWORDS:Tag: API Standard steel tube, 4145H Pipe, drill pipe, Drill Collar, API Spec 7-1, Drill Collar Billts , AISI 4145H MOD
