Steel Pipes & Tubes
ERW, LSAW, SSAW and seamless pipe, structural tubing and coated pipe. Our ranges cover different grades, diameters, walls and finished ends.
Factory-direct steel supply
Pipes, structures& solar mounting.
We make steel pipe, fabricated steelwork and solar mounting products at three factories in China. Buy by size for distributor stock, or by your cut list and drawings for a project package.
Distributors & stockists
Repeat sizes, identifiable batches and itemized wholesale orders.
Find your starting pointContractors & EPC teams
Pipe, steelwork and project components priced from the same material list.
Find your starting pointFabricators & OEMs
Full lengths, cut blanks and prepared parts for the next shop operation.
Find your starting pointSteel products for pipelines, construction & energy
Fire Protection Piping
Sprinkler pipe, fittings and valves for branch lines, mains and risers. Pipe ends, mating connections and the required product listings are reviewed together.
Pipe Fittings, Valves & Pumps
Grooved, threaded, flanged and butt-weld connections, with industrial valves and fire-water pumps. Each item is quoted for its pipe connection and operating duty.
Steel Sections, Coils & Plates
Beams, channels, angles, coils and plate for construction and fabrication. Full material lengths or processed pieces can be quoted against the member list.
Steel Structures
Building frames, support steelwork and custom assemblies made to your drawings. Fabrication and surface protection are included as defined order items.
Solar Mounting Systems
Ground-mount racking, roof attachments, carport steelwork and mounting components. Select by module layout, support spacing and the connection to the roof or foundation.
Ground Screws & Helical Piles
Ground screws, helical shafts, extensions and pile heads made to the specified foundation geometry. Our supply scope covers the components; site installation follows the project design.
Construction & Infrastructure Products
Highway guardrails, scaffolding, adjustable steel props and greenhouse steelwork, with the profiles and joining parts specified for each assembly.
Need products from several categories? Send one list with your quantities and destination.
Build your supply listFind Products by Material Specification
Find the product for your ASTM or API designation, with its grade, size and connection options.
ASTM A53
Black & galvanized steel pipe
Welded and seamless ASTM A53 pipe, with black or galvanized finishes. Orders retain the specified grade, manufacturing type and wall schedule.
Specify: Grade · type · NPS/OD · wall · ends
Explore this productASTM A106
Seamless pipe for elevated-temperature service
Seamless ASTM A106 carbon steel pipe for elevated-temperature service, supplied to the grade and wall required by the piping specification.
Specify: Grade · design conditions · dimensions · tests
Explore this productAPI 5L
Line pipe for pipeline projects
API 5L line pipe quoted by grade, PSL and manufacturing route, with the coating and supplementary requirements on the same order line.
Specify: Edition · grade · PSL · service · coating
Explore this productASTM A795
Fire sprinkler pipe
ASTM A795 sprinkler pipe with the specified wall, finish and prepared ends. Orders requiring UL Listing or FM Approval are reviewed against the exact product record.
Specify: Wall · finish · ends · project listings
Explore this productGROOVED SYSTEMS
Pipe connections that match
Grooved couplings, fittings and gaskets matched to the pipe OD, groove profile and service conditions of the joint.
Specify: OD · groove · gasket · pressure · service
Explore this productVALVES
Fire protection valves
Gate and butterfly valves for the required connection, pressure rating and supervisory arrangement. Listing requirements are reviewed by model.
Specify: Function · size · ends · model record
Explore this productASTM A500
Round, square & rectangular HSS
Round, square and rectangular ASTM A500 structural tubing, ordered by grade, outside dimensions and wall thickness.
Specify: Section · grade · dimensions · cut length
Explore this productASTM A252
Steel pipe piles
ASTM A252 pipe piles supplied by grade, diameter, wall and finished length. The foundation design sets the required pile geometry and site capacity.
Specify: Grade · OD · wall · length · connections
Explore this productDRAWING-BASED
Custom steel structures
Steel members and assemblies fabricated to your member schedule and connection drawings, with the required joints, tolerances and finish.
Specify: Drawings · members · joints · coating
Explore this productGROUND MOUNT
Ground-mount solar racking
Ground-mount racking and foundation components for the specified array layout, site loads and terrain.
Specify: Layout · loads · soil · corrosion exposure
Explore this productROOF MOUNT
Rooftop solar support
Roof mounting rails, clamps and attachments for the specified roof profile and support arrangement, with waterproofing details retained in the design.
Specify: Roof type · capacity review · fixings · modules
Explore this productFOUNDATIONS
Helical pile components
Helical shafts, extensions and pile heads for the project foundation design, with matched connections between the components.
Specify: Geotechnical data · loads · installation · testing
Explore this productThe purchase specification ties the selected standard edition to the required material documents and inspection records. Our quote follows that stated product and acceptance scope. Read the technical references
Steel supply for piping, construction and solar projects
Choose the application to see the pipe, steelwork or mounting components that belong in the same purchase package.
Ground-mount and rooftop solar
Ground arrays bring racking and foundations into one purchase. Rooftop arrays need attachments suited to the roof profile and waterproofing detail. Module dimensions, array geometry and project loads determine the support layout in both cases.
Water and energy piping assemblies
A pipeline package joins pipe with fittings, valves and any specified coating or lining. The conveyed medium and design conditions set the material and connection requirements. Oilfield casing and tubing remain separate from the line-pipe package.
Structural members and fabricated assemblies
Sections and HSS can be purchased as individual members; drawing-based assemblies add joint preparation and fabrication. Scaffolding and adjustable props belong to temporary-work systems with their own matching components.
Sprinkler pipe and fire-system components
Sprinkler branch lines, mains and risers can combine different pipe walls and end preparations. Couplings, fittings and valves are selected for those connections, with listing requirements kept against the exact product and configuration.
Inspection, traceability and delivery records.
We check the specified material, dimensions, finish and connections before shipment. Bundle marks and the agreed records identify each item when it reaches your receiving team.
Factory and supply responsibilities
Our manufacturing base combines Baolai welded pipe, Baolaili galvanized pipe and Dongfang Baoyu solar and foundation steelwork. Baolai’s pipe manufacturing history began in 1991.
About our manufacturingInspection & testing
Dimensional checks, mechanical tests, pressure tests and NDT answer different acceptance requirements. The order identifies which apply, their sampling basis and any third-party inspection.
Inspection scopeCoating & galvanizing
Pipe coatings, galvanizing and steelwork finishes follow different preparation and acceptance requirements. The selected system includes the surface condition, inspection basis and treatment of fabricated edges or joints.
Surface-protection detailsPacking & delivery records
Bundle marks, piece counts and packing lists give receiving teams a way to identify the shipment. Delivery terms distinguish the production and dispatch scope from transport to the stated destination.
Packing & export deliveryFrom enquiry to delivery.
Start with your requirements. We take the order through pricing, production and dispatch.
Share your requirements
Send your sizes, quantities and destination, or the drawings available now. We will identify any missing details needed for pricing.
Compare the offer
Review the item prices, lead time and delivery terms. Any proposed substitute is shown beside the requested material or component.
Confirm production details
Agree the drawings, finish, inspection and packing requirements before production starts.
Receive identified packages
Bundle marks and packing lists identify the supplied items and quantities. Agreed material and inspection records accompany the shipment.
Practical guides for your next order
Pipe sizes
Find the pipe dimensions you need
Review schedule, nominal size and outside diameter before completing your material list.
Building layout
Plan a warehouse for later expansion
Compare frame layouts and the access, service and foundation details that affect an extension.
Solar structures
Understand solar carport structure costs
Separate support steel, foundations and installation allowances from the PV equipment budget.
Questions about buying from METDAX
Mixed orders, batch conditions and what happens after your first message.
More buying guidanceCan I start before every detail is decided?
Yes. We can begin with the product and quantities already known, then separate firm requirements from the choices needed for a budget quotation.
Prepare a useful starting listWhat determines minimum order quantities and lead times?
The batch depends on the size mix, grade and processing route. Cutting, end work, coating, inspection and packing also affect the production schedule. Our quote states the quantity basis and production or dispatch timing for the requested order; transport time is a separate part of delivery planning.
Ask for batch and dispatch termsCan I include several product categories in one enquiry?
Yes. Pipe, steelwork, mounting and foundation items can be reviewed in one itemized inquiry. Each line keeps its own specification, quantity and finish; components that must assemble together are grouped as a system. The quote then separates the defined items and delivery groups.
Browse our product familiesGet a quote for your steel supply list
Send a material list or drawing with quantities and destination. We will return an itemized quotation covering the products, processing and delivery scope.