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4130 SR Wire Line Seamless Drill Pipes NQ HQ Drill Inner Tubes

Name: 4130 SR Wire Line Seamless Drill Pipes NQ HQ Drill Inner Tubes
Brand: Jiangsu Hongbao Group Co., Ltd.
SKU: HG-OP
Price: 22.00 USD
Availability: InStock

Product Details

Place of Origin: China

Brand Name: HONGBAO

Certification: PED, ISO9001,DNV

Model Number: HG-OP

Payment & Shipping Terms

Minimum Order Quantity: 1MT

Price: Negotiable

Packaging Details: As required

Delivery Time: Negotiable

Payment Terms: L/C, T/T

Supply Ability: 3000MT/Month

Get Best Price

Product Details

Product Description

Highlight:

Steel Grade:	30CrMo	Execution Standard:	ASTM A519, DIN2391, EN10305-1
OD Range:	30-139.7mm	WT Range:	3-19mm

Steel Grade:	30CrMo
Execution Standard:	ASTM A519, DIN2391, EN10305-1
OD Range:	30-139.7mm
WT Range:	3-19mm

4130 SR Wire Line Seamless Drill Pipes NQ HQ Drill Inner Tubes

4130 SR Wire Line Seamless Drill Tubes (NQ/HQ Drill Inner Pipes) are stress-relieved 4130 steel seamless tubes designed for wireline coring in geological exploration. Featuring high tensile strength (≥810 MPa) and toughness after heat treatment, they ensure durability in hard rock formations. Precision-machined with tight tolerances (OD ±0.15mm, straightness ≤0.5mm/m) and smooth inner surfaces (Ra ≤1.6μm), they minimize friction during wireline retrieval. Compatible with NQ (69.9mm OD) and HQ (88.9mm OD) core barrels, they offer robust thread connections (e.g., API standard) for secure assembly, optional nitriding coating for corrosion resistance, and reliability in deep-hole drilling up to 1500m. Ideal for mineral exploration and core sampling.

Chemical Composition

Steel Grade	C	Si	Mn	P	S	Cr	Mo	B
4130	0.28-0.33	0.15-0.35	0.40-0.60	≤0.040	≤0.040	0.80-1.10	0.15-0.25
4140	0.38-0.43	0.15-0.35	0.75-1.00	≤0.040	≤0.040	0.80-1.10	0.15-0.25
45MnMoB	0.43-0.48	0.17-0.37	1.05-1.35	≤0.020	≤0.015		0.20-0.25	0.001-0.005
1541	0.36-0.44	-	1.35-1.65	≤0.040	≤0.050
30CrMnSiA	0.28-0.34	0.90-1.20	0.80-1.10	≤0.020	≤0.015	0.80-1.10

Mechanical Properties

Steel Grade	Deliver Condition	Tensile Strength(Mpa)	Yield Strength(Mpa)	Elongation(%)	Hardness(HRC)
4130	+ SR	≥813	≥690	≥15%	≥24
4140	QT	≥950	≥850	≥14%	28 - 33
45MnMoB	+ N	≥790	≥600	≥14%	-
1541	+ SR	≥813	≥690	≥15%	≥24
30CrMnSiA	QT	≥850	≥750	≥14%	26 - 31

Delivery Condition:

1. Stress Relief Annealing after Cold Working (+SR) (BKS)

2. Normalizing (+N) (NBK)

3. Quenching & Tempering (QT)

4130 SR Wire Line Seamless Drill Pipes NQ HQ Drill Inner Tubes 0

FAQ:

1. Can you provide a sample to check the quality?
We can provide free sample with same or similar sizes for you to check tube quality.
You need to in charge of Express costs.

2. How about your production capacity?
3000 tons/Month.

3. What are your terms of payment?
30%TT in advance, Balance to be paid before shipment.

4. Where is your factory?
Zhangjiagang city, 1.5 hours away from Shanghai.

5. How can I get the quotation A.S.A.P?
Please send us an inquiry with full details as following,quotation will sent to you A.S.A.P:
1). Tube Standard
2). Steel Grade
3). Tube Size and Size Tolerance
4). Tube length
5). Quantity
6). If any special requirements

6. How about the minimum order quantity?
Normally for one size above 1 ton.

Welcome to contact us! Thanks.

Tags:

30CrMo Steel Grade WireLine Diamond Drill Tube Mother Pipes with ASTM A519 Standard and 30-139.7mm OD Range for Oil Drilling

Get Best Price

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