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High-Strength XJY850 Material Cold Drawn Precision Steel Tube with Tight Tolerances and Anti-Corrosion Coating for Geological Circular Drilling

Name: High-Strength XJY850 Material Cold Drawn Precision Steel Tube with Tight Tolerances and Anti-Corrosion Coating for Geological Circular Drilling
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: 
                                                                                                                                                                                cold drawn precision steel tube, geological circular drilling pipe, oil drilling pipe with warranty
                              

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

High-Strength XJY850 Material Cold Drawn Precision Steel Tube with Tight Tolerances and Anti-Corrosion Coating for Geological Circular Drilling

XJY850 Material Cold Drawn Precision Steel Tube, Geological Circular Drilling Pipe

Cold Drawn Precision Steel Tube (Geological Circular Steel Tube, XJY850 Material) is a high-strength circular steel tube engineered for geological drilling. Made from XJY850 alloy steel, it offers exceptional tensile strength (≥850 MPa) and wear resistance after quenching-tempering, ideal for abrasive rock formations. Precision cold drawing ensures tight tolerances (OD ±0.1mm, straightness ≤0.3mm/m) and a smooth inner surface (Ra ≤1.6μm), minimizing friction during drilling. Its circular design enhances load distribution, compatible with core barrels for deep-hole exploration (up to 2000m). Anti-corrosion coating (phosphate) boosts durability in harsh environments. Reliable for mineral sampling and geological surveys.

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

Stress Relief Annealing after Cold Working (+SR) (BKS)
Normalizing (+N) (NBK)
Quenching & Tempering (QT)

Frequently Asked Questions

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.

How about your production capacity?

3000 tons/Month.

What are your terms of payment?

30%TT in advance, Balance to be paid before shipment.

Where is your factory?

Zhangjiagang city, 1.5 hours away from Shanghai.

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:

Tube Standard
Steel Grade
Tube Size and Size Tolerance
Tube length
Quantity
If any special requirements

How about the minimum order quantity?

Normally for one size above 1 ton.

Welcome to contact us! Thanks.

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