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Standard: API 5CT & 5B Steel Grade: H40,J55, K55, N80, R95,L80, C90, T95, P110, Q125 Dimension: Tubing coupling from 2-3/8 to 4-1/2, Casing coupling from 4-1/2 to 20 End finish: NUE, EUE (tubing coupling); STC, LTC, BTC (casing coupling) Colors: J55/ K55-Bright Green,P110-White, N80/ L80-Red etc PACKING: by wooden cases, wooden pallet, or as per customer request As required by API 5CT standard, the couplings are always given color layer in order to differ the steel grade. J55-Green, N80-Red P110-White C75-Blue C-90-Brown
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API Casing Coupling and Tubing Couplings are industrial couplings made to API 5CT and 5B standards. They come in steel grades H40, J55, K55, N80, R95, L80, C90, T95, P110, Q125. Tubing couplings range from 2-3/8 to 4-1/2 inches, casing couplings from 4-1/2 to 20 inches. End finishes include NUE, EUE for tubing and STC, LTC, BTC for casing. Color coding is applied per grade: J55/K55 Bright Green, P110 White, N80/L80 Red, C75 Blue, C-90 Brown. Packed in wooden cases, wooden pallets, or as per customer request.
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Hebei Borun Steel Trade Co., Ltd is a B2B supplier based in China, listed on Global Trade Plaza since October 2026. Use Inquire now or Chat with supplier to ask Hebei Borun Steel Trade Co., Ltd for prices, specifications and documents for API Casing Coupling, Tubing Couplings.
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Hebei Borun Steel Trade Co., Ltd, a B2B supplier from China, dispatches API Casing Coupling, Tubing Couplings primarily through the port at China. Packaging types (e.g., bulk, custom, eco-friendly) and estimated pricing may vary based on order volume and destination. To get detailed logistics and pricing information, use Get a quote or Chat with supplier, or Sign Up for direct supplier interaction.