30CrMnSiA is a high-quality medium carbon alloy steel suitable for quenching and tempering. Adding manganese and silicon significantly improves toughness and harden capability.
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After cold drawing and quenching & tempering, the tubes have high strength, superior wear resistance, excellent processability, small process deformation and good fatigue resistance. The mechanical properties is comparable with 4130 4140 QT tubes. This makes 30CrMnSiA QT tubes suitable to be adopted as wireline coring rods. Dingxin also offers tubes with superior mechanical properties such as yield strength (Rp0.2) up to 950 MPa, and tensile strength (Rm) up to 1000 MPa.
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Product Details
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Product Name 30CrMnSiA quenched and tempered drill rod tube
StandardGB/T 9808
Material30CrMnSiA
DimensionOD: 16-245mm, WT1-32mm
LengthCut length upon on customer request
StraightnessStandard Class: 0.5/1000mm; Superior Class: 1/3000mm
Delivery ConditionQuenched and Tempered (QT)
CertificateISO 9001, IATF 16949
ApplicationsDrill rod (Q series: AQ BQ NQ HQ, W series: AW BW NW HW, Metric)
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Drill Rod Tube Dimensions
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Spec.OD (mm)ID (mm)
AQ44.4535.05
BQ55.5546.05
NQ69.8560.45
HQ88.977.8
PQ114.3101.6
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Chemical Composition
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Steel GradeCSiMnPSCr
30CrMnSiA0.28-0.340.90-1.200.80-1.10鈮?.020鈮?.0150.80-1.10
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Mechanical Properties
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Steel GradeDelivery ConditionTensile Strength (Mpa)Yield Strength (Min)Elongation (Min)Hardness (HRC)
30CrMnSiAQT85075014%26-31
30CrMnSiAQT95085014%28-32
30CrMoSiAQT100095013%30-35
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Advantages
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鈼?Superior wear resistance, longer work life
鈼?Excellent microstructure (grain size鈮?)
鈼?High straightness of tube body and end (up to 1/3000mm)
鈼?Tight tolerances, low eccentricity鈮?%
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Quality Control
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鈼?High quality alloy steel raw material from leading mills
鈼?Steel chemical analysis
鈼?Continuous geometric dimensioning check
鈼?Dedicated straightness check
鈼?Mechanical testing (tensile, yield, hardness, etc.)
鈼?100% NDT testing according to EN or ASTM standard
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FAQ
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1. Q: Are you a trading company or manufacturer?
聽 聽 聽 A: We are a manufacturer and solution provider. Certified with ISO9001 & IATF16949, Dingxin has 20 years鈥?experience in the production of 30CrMnSiA quenched and tempered drill rod tubes
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2. Q: How long is your delivery time?
聽 聽 聽A: Normally, quenching and tempering tubes take around 45 days after receiving the advanced payment.
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3. Q: What is your terms of payment?
聽 聽 聽 A: 30% advance payment, 70% balance against B/L copy.
聽Tube For Drill Rod manufacturers
website:http://www.dingxinsteeltube.com/tube-for-mining-and-drilling/tube-for-drill-rod/