Seamless Alloy Steel Pipe Pipeline Transport Boiler Pipe
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Product Highlights
- High Pressure Resistance: No welded joints with precise dimensions for high-pressure and high-temperature conditions.
- Corrosion Resistance: Excellent high-temperature and corrosion resistance for long-term stable performance.
- Wide Material Selection: Available in 15CrMo, 35CrMo, 42CrMo, ASTM A335 P91/P92, and other alloy grades.
- Flexible Customization: Surface finish, packing, and length can be customized according to customer demands.
- Fast Delivery: Standard delivery time within 7 to 10 days for efficient project scheduling.
- Multiple Applications: Ideal for oil & gas pipelines, power plant boilers, and petrochemical equipment.
- Certified Quality: Compliant with CE and ISO standards with prime quality assurance.
Product Attributes
- Customization
- Available
- Type
- Alloy Steel Pipe
- Standard
- AISI, ASTM
- Composition
- Alloy
- Technique
- Hot Rolled
- Shape
- Pipe
- Surface Treatment
- Polished
- Special Use
- Cold Heading Steel, Free Cutting Steel, Mold Steel, Alloy Steel Pipe
- Application
- Industry
- Surfance Finish
- Polished, Black, Grinding or as Demand
- Packing
- Wooden Pallet or According to Customer's Request
- Alloy or Not
- Alloy
- Tolerance
- ±1%
- Invoicing
- by Actual Weight
- Port of Loading
- Qingdao/Tianjin
- Quality
- Prime Quality
- Advantage
- Factory Directy Supply
- MOQ
- 3 Ton
- Delivery Time
- Within 7 Days
- Price Term
- CIF CFR Fob EXW
- Certificate
- CE ISO
- Transport Package
- Sea Worth Packing
- Specification
- Customized
- Trademark
- Zunkai
- Origin
- China
- HS Code
- 7304519090
- Production Capacity
- 100000 Tons Per Year
Product Images of Seamless Alloy Steel Pipe Pipeline Transport Boiler Pipe
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Product Description
Our alloy steel seamless pipes are produced in strict compliance with international standards. With no welded joints, precise dimensions and stable performance, they are ideal for high-pressure and high-temperature working conditions.
Key Features
High tensile strength and good toughness
Excellent high-temperature & corrosion resistance
Smooth internal & external surface
Strict dimensional tolerance control
Stable quality for long-term use
Main Materials
15CrMo, 20CrMo, 35CrMo, 42CrMo, 12Cr1MoV, ASTM A335 P91/P92, etc.
Main Applications
Oil & gas pipelines, power plant boilers, petrochemical equipment, mechanical structures, hydraulic systems and other industrial projects.


Product Name | Alloy Steel Pipe | Tensile Strength (MPa) | 500 - 1100 MPa |
Material Grade | 45#, 40Cr, 42CrMo, Q235B, AISI 1045AISI 4140, etc. | Yield Strength (MPa) | 300 - 950 MPa |
Diameter Range | φ10mm - φ300mm | Material Grade | 10#,20#,20g,20cr, 5L,ASTM A106,A53,A335 P11/P22 |
Wall Thickness Range | 1.0mm - 35mm | Processing Technology | Hot-rolled, Cold-drawn |
Length Type | Content: Random Length / Fixed Length (Customizabl) | Usage | Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose |
Surface Treatment | Painting/Hot DIP Galvanizing/Polished Coating | Optional Packaging Methods | Plain/Square/Triangle Bundle with Steel Strips |
MOQ | 4 Tons | Delivery Time | 7-10 Days |
Trade Term | Fob EXW CFR CIF Fca | Specification | OD:Φ10mm-Φ300mm, Wall Thickness:1.0mm-35mm; Length |
Trademark | Boer king | Origin | China |
Payment: | L/C or T/T | HS Code | 73041930 |











1. Who are we?
We are based in Shandong, China, start from 1993. Our company has 12 departments in Shandong Suzhou and GuangzhoThere are more than 4000 employees here in our company. Our main products include hot rolled cois, cold-rolled coils, Gl,ra Arr55% Al galvalume coil stainless steel We also export structural beams, steel pipes,aluminiun and cooper pipes etc. Our company'sannual sales amount is around 100 milion US dollars, we also entered into strategic partnership wth Bao steel, Laiu steel, Rizhaosteel, Anfeng steel HBIS etc. Our company has achieved ISo9001 quality certification system. Our main market is middle eastSoutheast Asia, Africa, South America etc. Hope to start the good cooperations with friends all over the world!
2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.What can you buy from us?
Carbon steel products Galvanized steel products, PPGI steel coil Galvalume steel products, Stainless steel products, Steel structure.
Prefabricated house; etc.
4. What services can we provide?
Accepted Delivery Terms: FOB, CFR,CIF,EXW,.FAS,CIPFCA,CPT,DEQ,DDP,DDU,Express Delivery,DAF,DES,Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Western Union,Cash,Escrow,Language Spoken. English,Chinese,SpanishJapanese,Portuguese,German,Arabic.French.Russian,Korean,Hindiltalian
About the Supplier
This supplier has been audited by BV. Verify the report on the official BV website with ID "MIC-ASR2451905". Items marked "" are certified.
Company Profile
Jinan Zunkai Materials Co., Ltd belongs to the Jinan Zunkai Group. Jinan Zunkai Group founded in 2008, with five branch companies and is well-funded. Our annual sales nearly one billion, about 300, 000 tons steel.
Our company is located in Jinan City, Shandong Province. We entered into a strategic partnership with Rizhao Steel, Jinan Steel, Laiwu Steel, Handan Iron and Steel, Anyang Iron and Steel, Maanshan Iron and Steel and other domestic large steel companies. Zunkai is the largest steel agent in Shandong Province, we also have ourselves steel manufacturing factory, and our stock always no less than 10, 000 tons.
Our company mainly engaged in: PPGI, galvanized steel, Roofing Sheet, AFP galvalume steel, stainless steel, steel pipes, H-beam, I-beam, angle, channel, flat steel, round steel, all profiles; Our own steel factory mainly produces seamless pipe, spiral pipe, square and rectangular tube, galvanized pipe and so on.
We always focused on the integration of resources, in line with the concept of win-win cooperation.
Zunkai regards moral integrity as fundamental, relying on advantages of resources, we will ensure the most reliable quality and very good prices.
Looking forward to be the best partner of different clients!
About Our Factory & Business Background
-
Business Type
- Trading Company
- Address
- No. 15 Lanxiang Road, Tianqiao District, Jinan, Shandong, China
-
Plant Area
- 2356 square meters
-
Number of Employees
- 50
-
Registered Capital
- 10,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays -
Nearest Port
- Tianjin Port
-
Minimum Order Quantity
- 25 Tons
-
Supply Chain Partners
- 5
Our Production Capability & Technical Expertise
-
Main Products
- Roofing Sheet, Galvanized Steel, Galvalume Steel, Steel Plate, PPGI, H Beam, Angle Steel, Stainless Steel, Hot Steel Coil, Cold Steel Coil, Silicon Steel
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 2 people
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2016-01-20
-
Export Year
- 8 Years
-
Main Markets
- Southeast Asia/ Mideast
-
Repeat Buyers Choice
- 50%~80%
-
Number of Foreign Trading Staff
- 39
-
Overseas Agent/Branch
- Yes
-
New Products Launched in Last year
- No
Our Certifications, Standards & Industry Recognition
-
Product Certification
- CE, RoHS
-
Cooperated with Fortune 500
- No
FAQ
- What are the main applications of these alloy steel pipes?
- They are ideal for oil & gas pipelines, power plant boilers, petrochemical equipment, mechanical structures, hydraulic systems, and other industrial projects.
- What is the minimum order quantity (MOQ)?
- The MOQ is 4 tons. However, specific attributes list 3 tons; please confirm with the supplier for the exact requirement.
- Can the surface treatment and packing be customized?
- Yes, surface finishes like polished, black, or grinding are available. Packing can be wooden pallets or according to customer requests.
- What is the delivery time for orders?
- The standard delivery time is within 7 to 10 days after order confirmation.
- What payment terms are accepted?
- We accept L/C, T/T, D/P, PayPal, Western Union, and other standard international payment methods.
- What certifications do the products have?
- The products comply with CE and ISO standards and are produced in strict compliance with international standards like ASTM and AISI.
- What are the available material grades?
- Common grades include 15CrMo, 20CrMo, 35CrMo, 42CrMo, 12Cr1MoV, ASTM A335 P91/P92, and others.
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