EN10305-1 Standard 45MnMoB Grade Seamless Steel Oil Well Drill Pipe with 30-139.7mm OD Range

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Jiangsu Hongbao Group Co., Ltd.

Province/State:jiangsu

Country/Region:china

Tel:86-512-58715276

Contact Person:
Ms.Angela View Contact Details

EN10305-1 Standard 45MnMoB Grade Seamless Steel Oil Well Drill Pipe with 30-139.7mm OD Range

Brand Name	HONGBAO
Model Number	HG-OP
Certification	PED, ISO9001, DNV
Place of Origin	China
Minimum Order Quantity	1MT
Price	Negotiable
Payment Terms	L/C,T/T
Supply Ability	3000MT/Month
Delivery Time	Negotiable
Packaging Details	As required
Material	30CrMo（4130/34CrMo4）, 42CrMo（4140/42CrMo4）, 40Mn2, 45MnMoB, 30CrMnSiA, 4135, 1541
Standard	GB/T 9808, ASTM A519, DIN2391, EN10305-1,
OD Range	30-139.7mm
WT Range	3-19mm
Processing	Cold Rolling
Color	Black

Detailed Product Description

EN10305-1 Steel Drilling Rod 45MnMoB Grade Seamless Steel Oil Well Drilling Pipe With Coupling Tube

45MnMoB Grade Drilling Pipe: Unmatched Strength & Specialized Performance

The 45MnMoB-grade drilling pipe is a high-performance alloy steel solution engineered for oilfield operations that demand exceptional strength, superior wear resistance, and enhanced impact toughness. With its unique chemical composition (notably high manganese and molybdenum content) and tailored mechanical properties, this grade stands out as an optimal choice for extreme drilling environments where standard grades fall short.

Key Advantages

Built for Extremes - Delivers unmatched strength and wear resistance for high-load, high-wear drilling scenarios where standard grades fail.
Alloy-Optimized - Manganese and molybdenum enhance hardenability, high-temperature stability, and fatigue life - critical for modern deep drilling.
Tailored Hardness - Optional QT treatment pushes surface hardness to 32 HRC, combating abrasion and extending service intervals.
Reliable in Harsh Fluids - Low sulfur/phosphorus and fine microstructure resist corrosion and erosion in aggressive well environments.

Applications

Applications include fore poling (advance support), mine blasting, water well drilling, geothermal well drilling, and coal/nonferrous metal mining.

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 Conditions

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:
1). Tube Standard
2). Steel Grade
3). Tube Size and Size Tolerance
4). Tube length
5). Quantity
6). If any special requirements

How about the minimum order quantity?

Normally for one size above 1 ton.

Welcome to contact us! Thanks.

Product Tags: EN10305-1 steel drilling rod 45MnMoB seamless oil well pipe drilling pipe with coupling tube

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