Products supplied
- Seamless hydraulic tubes
- SAE split flanges
- DIN tube fittings
- Hydraulic adapters and couplings
- Hose ends and test points
High-pressure tubing, flanges, adapters and hose connections for mobile and industrial hydraulic systems.

International references for Hydraulic Piping Components. Select the required specification system, then complete your enquiry. Options are available for technical review; compliance and supply capability require written confirmation.
Selecting several references requests a compliance review. It does not establish equivalence or dual certification. Hidden selections remain in your enquiry.
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Class, PN and JIS K are separate rating systems; no automatic conversion or drilling compatibility is implied. NPS / DN is nominal, not actual OD. Similar grades are comparison candidates only. ASTM / ASME and EN designations are not automatic substitutes.
Certificates, inspection, IBR and project approvals are separate requirements. An ISO 9001 quality-system certificate is not a product approval. Current issuer editions may differ from the edition required by your contract.
STEEL GEMS — INTERNATIONAL SPECIFICATION ENQUIRY Product: Hydraulic Piping Components Requested references: To confirm Exact grade / UNS / delivery condition: To confirm Required edition / addenda: To confirm Size, actual OD, wall / schedule and units: To confirm Rating system and value (Class / PN / JIS K / Table): To confirm Type, construction, connection, facing / thread: To confirm Quantity with unit: To confirm Documents / tests requested: To confirm Delivery city / country / ZIP / port: To confirm Project notes / origin restrictions / service conditions: To confirm Please review applicable scope, compatibility, material origin, manufacturing route, compliance, availability and commercial terms. This is an enquiry, not an engineering approval.
WhatsApp opens a draft for you to review and send. Files are not attached automatically; use the RFQ upload page or attach them separately.
Reference summaries only. Confirm full scope and required edition with the issuer and project specification.
Steel Gems supports material certification, heat-number traceability, NABL laboratory testing, NDT and third-party inspection for Hydraulic Piping Components when required by the purchase specification.