Is the 90° SAE 6000 Weld Flange Connection, Carbon Steel, Type D6 compatible with fluids at temperatures between -20°C and +100°C?

Yes. The 90° SAE 6000 Weld Flange Connection, Carbon Steel, Type D6 is specified to operate within a temperature range of -20°C to +100°C, so it is compatible with fluids whose temperatures fall within that range. Its carbon steel construction, weld-on socket, and NBR O-ring are designed to provide secure, leak-free performance across those low and high thermal conditions.

Can the 90° SAE 6000 Weld Flange Connection, Carbon Steel, Type D6 be welded directly to pipework without pre-machining or special preparation?

No — the 90° SAE 6000 Weld Flange Connection, Carbon Steel, Type D6 is designed with a weld-on socket that requires proper welding to pipework. While its machined socket provides a precise fit, direct welding without appropriate preparation (cleaning, alignment, correct welding procedure and welding filler compatible with carbon steel) is not recommended. Pre-welding steps typically include removing contaminants and coatings, ensuring correct fit-up and gap, and following suitable welding standards and post-weld treatment to preserve mechanical properties and seal integrity. Proper preparation and qualified welding ensure the connection meets pressure, leak-tightness and durability expectations for demanding hydraulic applications.

Connection flange 90° SAE 6000 for welding-in, steel carbon, type D6

All products, High-pressure adapters/

Additional information

Material	CS – steel (cast iron)

Connection flange 90° SAE 6000 o compact construction with socket for welding-in for use in systems hydraulic. supplied of screws fixing and seal O-ring (NBR). Material: steel carbon. Operating temperature: od -20°C up to +100°C.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HK-D6-SA-90-08-21	Flange connection 90° SAE 6000 1/2", for welding 21.6 mm	-	420	In stock	Enquiry
HK-D6-SA-90-12-27	Flange connection 90° SAE 6000 3/4", for welding 27.2 mm	-	420	In stock	Enquiry
HK-D6-SA-90-16-34	Flange connection 90° SAE 6000 1", for welding 34.1 mm	-	420	In stock	Enquiry
HK-D6-SA-90-20-42	Flange connection 90° SAE 6000 1.1/4", for welding 42.8 mm	-	420	In stock	Enquiry
HK-D6-SA-90-24-48	Flange connection 90° SAE 6000 1.1/2", for welding 48.6 mm	-	420	In stock	Enquiry
HK-D6-SA-90-32-61	Flange connection 90° SAE 6000 2", for welding 61 mm	-	420	In stock	Enquiry

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Connection flange 90° SAE 6000 o compact construction with socket for welding-in for use in systems hydraulic. supplied of screws fixing and seal O-ring (NBR). Material: steel carbon. Operating temperature: od -20°C up to +100°C.