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Model No.: SAE4130 Drill pipes
Brand: HuiJie
Usage: Special Purpose
Type: Seamless
Technique: Cold Drawn
Material: Alloy Steel
Surface Treatment: Black
Section Shape: Round
Grain Size: Min ASTM 8
Size Range: OD:6-120mm,Wt:1-20mm
Heat-treatment: Stress Released Or Quenching
Specification: AQ,BQ,NQ,HQ,PQ
Length: 3000mm 3050mm 3100mm
Similar Steel Grade: 4130 30CrMo
Application: Wireline Drill Rods,core Barrel
Packaging: Bundles Packing with plastic bags wrapped
Productivity: 5000tons per month
Transportation: Ocean,Land
Place of Origin: Made in China
Supply Ability: 3000 tons/month
Certificate: TS16949 ISO9001
HS Code: 7304.3110
Port: Ningbo,Shanghai
Payment Type: L/C,T/T,D/P,Paypal,Western Union
Incoterm: FOB,CFR,CIF
SAE4130 Geological Exploration Seamless Drill Pipes BQ/NQ/HQ
THE DRILL PIPES PRODUCED BY COLD DRAWN SEAMLESS ALLOY STEEL
TUBES FOR WIRE-LINE DRILL RODS,CORE BARREL,CASING PIPES.
THE STEEL NORM:ISO10097-1 WIRELINE DIAMOND CORE DRILLING PIPES ,
DCDMA DRILL STEEL PIPES,BS4019 ROCK DRILLING PIPES,METRIC DRILLING
RODS,Astm A519 SEAMLESS ALLOY STEEL TUBING FOR ROCK DRILLING RODS.
STEEL GRADE: SAE/AISI4130,SAE4140,SAE1541,1045,St52.3
SPECIFICATIONS: ASTM A519 WITH FOLLOWING REQUIREMENTS.
THE DRILL TUBING MECHANICAL PROPERTIES:
Tensile Min | 725MPa |
Yield Min | 620MPa |
Elongation (50.8mmG.L) | Min 15% |
Hardness | 230-280 HB |
Condition | Stress relieved. |
Straightness better than: | 1 in 2000 MAX (1MM DEVIATION IN 2000MM) |
Eccentricity (Max) | 5% |
Grain size | ≥ 9 according to ASTM E112 |
Residual Hoop stress | <80Mpa according to ASTM E1928-99 |
BQ,NQ,HQ DRILL PIPES DIMENSION AND TOLERANCES (IN MM)
SR.NO. | OUTSIDE DIA | TOLERANCE | INSIDE DIA | TOLERANCE | WT | LENGTH (+5/-0) |
1 | 55.56 | +0.18/-0 | 46.20 | +0/-0.18 | 4.68 | 3070 |
2 | 69.85 | +0.20/-0 | 60.32 | +0/-0.20 | 4.765 | 3070 |
3 | 88.90 | +0.25/-0 | 78.00 | +0/-0.25 | 5.45 | 3070 |
NON-DESTRUCTIVE TEST
Eddy Current Examination according to ASTM E309shall be applied on all tubes using External Longitudinal
notch with depth of no more than 7.5% of wall thickness (maximum notch depth 0.80mm and minimum notch
depth 0.30mm) , 0.30mm maximum width and 25mm maximum length, made from the same chemistry and size
of tubing.
THE CORE DRILLING RODS SURFACE CONDITION
The tubes must have smooth surface,black surface or black phosphatized.
THE STEEL PIPES MARKING
The request information shall be marked on each tube with paint, and
each bundle shall be identified with a securely attached metal tag.
TUBES PIPES SURFACE COATING
The tubes inside and outside shall be coated with a rust inhibitor
PACKING OF ALLOY TUBES
Standard Export worthy packing, preferably in hexagonal bundle with plastic wrapped and steel strapped.
PRODUCTS PICITURES
Tags:BQ/NQ/HQ drill pipes, Geological exploration drill pipes,SAE4130 drill pipes,diamond drilling pipes,core drilling tubing.
Product Categories : Seamless Mining Drill Pipes
Home > Products > Seamless Mining Drill Pipes > SAE4130 Geological Exploration Seamless Drill Pipes BQ/NQ/HQ
Send Inquiry
Mr. Kevin
Tel:86-0574-87491308
Fax:86-0574-87491848
Mobile Phone:+8613355844917
Email:sales@hjbearingtube.com
Address:Industrial Park, Zhangting Town,Yuyao City, Ningbo, Zhejiang
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.