Yes, JS FITTINGS supports bulk steel flange orders for stockists, wholesalers, and industrial distributors, with production capacity for different product types and specifications. We manufacture Weld Neck, Slip-On, Blind, Socket Weld, and Threaded Flanges in carbon, stainless, and alloy steel. Orders can cover multiple sizes from 1/2″ to 80″, depending on the applicable standard and flange type. We can review your regular stock list and provide a quotation based on quantities and specifications.

Yes, mixed-specification orders can be arranged, allowing buyers to source different flange types, sizes, and pressure classes in one shipment. For example, a wholesale order may combine 2″–12″ ASME B16.5 Weld Neck, Slip-On, and Blind Flanges in Class 150 and 300. We can review your product list, quantities, materials, and packing requirements before confirming production arrangements. This helps distributors consolidate purchasing and reduce the need to coordinate multiple suppliers.

Our MOQ depends on flange type, material grade, size, pressure class, and manufacturing requirements rather than one fixed quantity for every product. Mixed-size orders can also be evaluated according to the total quantity. Send us your stock list or estimated purchasing volume so we can confirm the MOQ and provide a practical quotation.

We manufacture steel flanges according to several international standards, including ASME B16.5, ASME B16.47 Series A/B, EN 1092-1, DIN, GOST, and JIS, subject to product specifications. ASME pressure classes include 150, 300, 400, 600, 900, 1500, and 2500 where applicable. We also supply PN-rated flanges such as PN10, PN16, PN25, and PN40. Buyers should specify the required standard, pressure rating, size, and facing to ensure dimensional compatibility.

Yes, we manufacture large-diameter steel flanges, including ASME B16.47 Series A and Series B products, with sizes available up to 80″ depending on the flange type and applicable requirements. Common applications include water transmission, oil and gas pipelines, and industrial process systems. When requesting a quotation, please provide the nominal pipe size, pressure class, series, material grade, facing type, and required quantity so we can verify the dimensions and manufacturing feasibility.

Yes, customized steel flanges can be evaluated based on customer drawings and technical specifications. We can review requirements such as outside diameter, bolt circle diameter, bolt hole quantity, flange thickness, bore diameter, facing dimensions, and material grade. Please provide drawings in PDF, DWG, or other suitable formats, together with the applicable pressure and testing requirements.

Yes, EN 10204 3.1 Mill Test Certificates can be provided for applicable flange orders to document material chemical composition and mechanical properties.

We can arrange quality inspections according to the agreed purchase specifications and inspection plan, including dimensional checks, hardness testing, PMI, ultrasonic testing (UT), and other applicable examinations. Third-party inspection can also be discussed before shipment. Buyers should confirm the inspection scope, acceptance criteria, sampling rate, and applicable standards when placing the order.

The production lead time for a bulk flange order depends on the product type, material grade, size range, quantity, and inspection requirements. As a general quotation reference, JS FITTINGS has previously communicated production planning of approximately 15–30 days for one container, subject to order confirmation. Shipping time depends on the destination port and logistics arrangements.