HQS / MATERIAL
ASTM A106 Grade B Seamless Steel Pipe
Source ASTM A106 Grade B seamless steel pipe for your piping order. Send diameter, wall, length, pipe-end and inspection requirements, plus quantity and destination port for pricing.
From China to the world
Seamless Carbon Steel Pipe Supplier in China— Custom Sizes for Bulk Export
Compare ASTM A106 Gr.B seamless carbon pipe and A335 alloy seamless pipe. Send the outside diameter, wall, length, quantity and inspection requirements.
- Reliable QualitySpecification & inspection
- Global ShippingFOB · CIF · CFR
- Extensive RangeSteel for your project
- Procurement SupportFrom enquiry to delivery
Our Products
View All- ASTM · EN · JIS · GB
- Standards
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- FOB · CIF · CFR
- Trade terms
- Your Steel Supply Partner
- Material selection, export documentation and shipment planning.
01PRODUCT CENTER
Seamless Steel Pipes & Grades
Browse seamless pipe products first, then the broader steel export catalog. Share project drawings or specifications for custom production.
Seamless pipe specifications & grades
Seamless carbon and alloy pipe
HQS / MATERIAL
ASTM A335 Seamless Alloy Steel Pipe
Request ASTM A335 seamless alloy steel pipe by grade and heat-treatment condition. Send pipe sizes, inspection needs, quantity and destination port for your piping project quote.
Related carbon steel pipe options
The products below include mixed seamless/welded specifications or other pipe forms. Confirm the manufacturing process before choosing a substitute.
HQS / MATERIAL
ASTM A252 Steel Pipe Piles
Source ASTM A252 steel pipe piles in specified seamless or welded construction. Send grade, diameter, wall, pile lengths and quantities for a quote to your destination port.
HQS / MATERIAL
ASTM A333 Steel Pipe
Request ASTM A333 steel pipe pricing by grade, wall and seamless or welded construction. Send low-temperature test requirements, quantity and destination port with your enquiry.
HQS / MATERIAL
ASTM A53 Carbon Steel Pipe
Request ASTM A53 carbon steel pipe pricing by grade and seamless or welded type. Send diameter, wall, end preparation, lengths and quantity with the destination port for quotation.
HQS / MATERIAL
Alloy Pipe
Alloy Pipe. Source alloy tubing by grade, diameter, wall and production route. Send project specifications, quantity and port for a quote.
HQS / MATERIAL
Carbon Steel Pipe
Source carbon steel pipe to your grade, wall and construction requirements. Send pipe dimensions, inspection needs, order quantity and destination port for a project supply quote.
HQS / MATERIAL
Carbon Steel Square Tube
Carbon Steel Square Tube. Request square-tube pricing with grade, side dimensions, wall and lengths. Send structural drawings, tonnage and destination port.
Third-party inspection
Inspection requirements can be included in the purchasing brief and coordinated before shipment.
Quality control
Inspection workflow
FOB / CIF / CFR
Trade terms, packing and destination requirements stay visible during quotation review.
Export coordination
Shipment planning
CORPORATE PARTNER
Industry Partners
Providing comprehensive and one-stop procurement services from steel selection, ordering, production to logistics transportation, simplifying customer procurement processes.
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Tianjin Huaqi Steel
About Huaqi
About Tianjin Huaqi Steel
Learn how our team handles material requirements, processing details, inspection documents and export arrangements for steel procurement.
Company profileHuaqi Vision
Making steel purchasing clearerfrom material brief to delivery.
Huaqi connects product range, technical confirmation, quality records, processing, packing and shipment coordination so overseas buyers can move through one visible purchasing route.
Material supply
Quality control
Export coordination
Steel supply for modern international procurement
About Huaqi · 03 checkpoints
Why choose Huaqi
Three practical checkpoints keep the steel buying route clear—from specification review to quality evidence and export delivery.
01 / 03
Clear specifications before quotation
We align material, grade, size and standards before discussing price, so every quotation starts from the same brief.
Material-first RFQStandards and grade alignment
02 / 03
Quality evidence stays visible
MTC, inspection scope and traceability requirements stay with the order brief and are checked before shipment.
MTC and inspectionTraceable documents
03 / 03
Export execution stays coordinated
Packing, marking, loading and FOB / CIF / CFR terms remain visible from confirmed order to shipment.
Packing and markingFOB / CIF / CFR
05From brief to port
From Steel Specification to Export Shipment
From material and standards to packing and destination, we organize the critical checkpoints into one practical sourcing route. Confirm the brief first, then move through verification, preparation and delivery with fewer surprises.
STEP01
Define
Material / grade / size / quantity
Turn the initial request into a brief the export team can quote against.
STEP02
Verify
Standard / MTC / inspection
Align technical requirements and quality evidence before production moves forward.
STEP03
Prepare
Packing / marking / loading
Coordinate production, packing and shipping marks around the product and route.
STEP04
Deliver
FOB / CIF / CFR / destination
Keep trade terms, destination and shipment milestones visible through dispatch.
06FAQs
Frequently Asked Questions
Need a specific answer?
Send your product, grade, size, quantity and destination to the export team for a focused reply.
Contact Export DeskSeamless pipe has no longitudinal weld seam; welded pipe is made by joining formed steel. Specify manufacturing method, grade and service conditions when comparing quotes.
Send outside diameter, wall thickness or pipe schedule, length, grade and quantity. The dimensions must fit the selected A106 or A335 product standard.
Seamless iron or steel pipes often fall under HS heading 7304. The complete code depends on material and destination customs rules; confirm it with your customs broker.
No. Schedule 40 wall thickness changes with nominal pipe size (NPS). State both NPS or outside diameter and the schedule in your RFQ.
A106 specifies seamless carbon pipe for high-temperature service. A53 covers both seamless and welded pipe. Confirm grade and manufacturing method before substituting.
No. Carbon/alloy grades such as A106 or A335 differ from stainless grades such as 316L and 2507. Choose based on the fluid, corrosion conditions and design standard.
Location
Where to find Huaqi
HUAQI STEEL / GLOBAL SUPPLY