Question 1

Which flange standards can YUXIN manufacture to?

Accepted Answer

We forge and machine flanges to ASME/ANSI B16.5 and B16.47 (Series A & B), EN 1092-1, DIN 2631-2638, JIS B2220, GOST and BS standards, in pressure classes from 150 lb to 2500 lb and PN6 to PN400. Non-standard and drawing-based flanges are also produced.

Question 2

What documentation is supplied with each shipment?

Accepted Answer

Every batch ships with an EN 10204 / DIN 50049 3.1B mill test certificate covering heat number, chemical composition, mechanical properties and heat-treatment records. Ultrasonic testing, PMI, hardness, impact and dimensional reports are available on request, together with commercial invoice and packing list for customs clearance.

Question 3

What is the minimum order quantity and lead time?

Accepted Answer

Standard carbon steel items in stock sizes ship in 7-15 days. Forged-to-order and non-standard flanges normally require 25-35 days depending on size, material availability and heat-treatment cycle. Low MOQ trial orders are accepted for new distributor partners.

Question 4

Which materials do you forge?

Accepted Answer

Carbon steel (A105, Q235B, C22.8, P250GH), low-temperature and alloy steel (LF2, A182 F5/F11/F22, 16Mn), stainless steel (304/304L, 316/316L, 321, F51/F53 duplex) and nickel alloys on project basis.

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