Jiangsu Hongbao Group Co., Ltd.: Jiangsu Hongbao Group Co., Ltd. Manufacture since 1958

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30CrMnSiA Grade Corrosion Resistant High Strength Oil Well Pipe and Seamless Steel Drilling Rod Tube

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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

30CrMnSiA Grade Corrosion Resistant High Strength Oil Well Pipe and Seamless Steel Drilling Rod Tube

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
Steel Grade	30CrMo, 42CrMo, 30CrMnSiA, 40Mn2, 45MnMoB, 30CrMnSiA, 4135, 1541
Execution Standard	ASTM A519, DIN2391, EN10305-1, GB/T 9808
OD Range	30-139.7mm
WT Range	3-19mm
Processing	Cold Roll, Cold Drawn
Color	Black

Detailed Product Description

EN10305-1 Steel Oil Well Pipe 30CrMnSiA Seamless Steel Drilling Rod Tube with Low Eccentricity

30CrMnSiA Grade Drilling Pipe: Corrosion-Resistant, High-Strength & Weldable Wellbore Solution

Engineered for medium-high pressure, weakly corrosive, and dynamically loaded well conditions, the 30CrMnSiA-grade drilling pipe combines chromium-manganese alloy reinforcement, superior weldability, and balanced toughness to deliver reliable performance in complex oilfield applications.

Core Advantages

High-Strength Corrosion Resistance - Tensile strength ≥850 MPa; chromium (0.80-1.10%) forms a passive oxide layer to resist brine/weak acid fluids, outperforming standard carbon steels.
Lightweight Yet Tough - Lighter than 4140 steel, reducing tripping loads while maintaining high strength (comparable to 4130), ideal for deep well structural demands.
Worry-Free Weldability - Low carbon equivalent design enables low-preheat field welding, ensuring reliable wellbore connections and repairs.
Dynamic Adaptability - Elongation ≥14% absorbs vibrations/pressure pulses, minimizing crack risks and extending service life.

Why Choose 30CrMnSiA?

Beats 1541 - Superior corrosion resistance for water injection wells, offshore wells, and moderately corrosive environments.
Cost-Effective Balance - Lower alloy investment than 4140/4130, with performance matching premium grades.
Ideal Choice - The perfect solution when your well demands strength, corrosion resistance, and weld-friendly performance.

Applications

Includes 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 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:
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 oil well pipe 30CrMnSiA seamless drilling rod low eccentricity steel tube

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