Is the SAE 6000 flange connection for welding, carbon steel, type D6 compatible with hydraulic fluids at temperatures between -20Â°C and +100Â°C?

Yes. The SAE 6000 flange connection for welding, carbon steel, type D6 Format is specified for use in hydraulic systems, has a compact welded-socket design, and is supplied with an NBR (nitrile rubber) Oâring. Its stated operating temperature range is â20Â°C to +100Â°C, which matches the temperature window you quoted. NBR seals are generally compatible with most mineral hydraulic oils and many hydraulic fluids within that temperature range, so for standard hydraulic fluids and typical system oils the flange assembly (carbon steel body, galvanized finish, NBR Oâring) is suitable. Caveat: compatibility depends on the specific hydraulic fluid chemistry (e.g., phosphate esters, waterâglycols, some synthetic fluids, or fluids with aggressive additives can attack NBR). If your system uses nonâmineral or specialty fluids, or will experience extended exposure near the temperature limits, verify NBR compatibility with the exact fluid (consult fluid and seal manufacturers). Otherwise, for conventional hydraulic oils between â20Â°C and +100Â°C, the SAE 6000 flange connection for welding, carbon steel, type D6 Format is compatible.

Does the SAE 6000 flange connection for welding, carbon steel, type D6 include mounting screws and an NBR O-ring?

Yes. The SAE 6000 flange connection for welding, carbon steel, type D6 includes mounting screws and an NBR O-ring seal. The product is supplied with mounting screws and an NBR O-ring, made of galvanized carbon steel, suitable for hydraulic systems with an operating temperature range of -20Â°C to +100Â°C.

Can the SAE 6000 flange connection for welding, carbon steel, type D6 be used in compact hydraulic assemblies with limited space?

Yes. the SAE 6000 flange connection for welding, carbon steel, type D6 Format is suitable for compact hydraulic assemblies with limited space. It was designed as a compact flange with a welding socket, making it well suited where footprint and tight packaging are critical. Key points supporting suitability: - Compact design: the flangeâs reduced overall dimensions help integrate it into tight assemblies without excessive protrusion. - Welding socket: allows a secure, low-profile joint to the hydraulic line, avoiding bulky external fittings. - Supplied hardware and sealing: included mounting screws and an NBR O-ring provide a reliable sealed connection without additional components that would increase space requirements. - Material and finish: carbon steel, galvanized, offers strength and corrosion resistance suitable for hydraulic system environments while keeping wall thickness and size compact. - Temperature range: rated from â20Â°C to +100Â°C, covering typical hydraulic operating conditions in compact machinery; ensure the temperature and fluid compatibility with NBR O-ring. Notes and cautions: verify actual installation clearances, flange mating faces and bolt circle fit with your assembly; confirm welding process and post-weld tolerances do not interfere with adjacent components; check that the NBR seal and temperature rating match your hydraulic fluid and peak operating temperatures. If space is extremely constrained, compare flange outer dimensions and bolt patterns to alternatives before final selection.

Flange connection SAE 6000 weld-on, carbon steel, type D6

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Additional information

Material	CS – steel (cast iron)

Flange connection SAE 6000 of compact design with a weld-on socket for use in hydraulic systems. Supplied with mounting screws and an O-ring seal (NBR). Material: carbon steel, galvanized. Operating temperature: from -20°C to +100°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HK-D6-SA-06-17	Flange connection SAE 6000 3/8", for welding 17.5 mm	-	420	In stock	Enquiry
HK-D6-SA-08-21	Flange connection SAE 6000 1/2", for welding 21.6 mm	-	420	In stock	Enquiry
HK-D6-SA-12-27	Flange connection SAE 6000 3/4", for welding 27.2 mm	-	420	In stock	Enquiry
HK-D6-SA-16-34	Flange connection SAE 6000 1", for welding 34.5 mm	-	420	In stock	Enquiry
HK-D6-SA-20-42	Flange connection SAE 6000 1.1/4", for welding 42.8 mm	-	420	In stock	Enquiry
HK-D6-SA-24-48	Flange connection SAE 6000 1.1/2", for welding 48.6 mm	-	420	In stock	Enquiry
HK-D6-SA-32-61	Flange connection SAE 6000 2", for welding 61 mm	-	420	In stock	Enquiry
HK-D6-SA-40-76	Flange connection SAE 6000 2.1/2", for welding 76.6 mm	-	420	In stock	Enquiry
HK-D6-SA-48-90	Flange connection SAE 6000 3", for welding 90.5 mm	-	420	In stock	Enquiry

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Flange connection SAE 6000 of compact design with a weld-on socket for use in hydraulic systems. Supplied with mounting screws and an O-ring seal (NBR). Material: carbon steel, galvanized. Operating temperature: from -20°C to +100°C.