Home » Steel Pipe Fittings » Forged Pipe Fittings » ansi b16.9 bw alloy steel pipe fittings a234 wp5-wp9-wp11-wp12-wp22-wp91 elbows-tees-reducer-caps

ansi b16.9 bw alloy steel pipe fittings a234 wp5-wp9-wp11-wp12-wp22-wp91 elbows-tees-reducer-caps

The main difference between stainless steel bottle caps and carbon steel bottle caps is the difference in material. The chemicals contained in stainless steel caps will keep the surface of the cap from rusting and corroding for a long time.

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⇒Threaded pipe end caps⇐ seal the threaded end of the pipe. Threaded pipe caps are used as protective devices designed to protect pipe ends of various shapes. The main purpose of using a threaded pipe cap is a waterproof connection. They are also used to close the ends of hydraulic or pneumatic pipes.

Modern threaded pipe caps are an excellent choice for eliminating air pressure in pipes. These are standard fittings that fit snugly on the pipe and can be selected for the optimum thread size.

Grade and Marking Symbol Composition, %
C Mn P S Si Cr Mo
WPB 0.30 max 0.29-1.06 0.05 0.058 0.10 min 0.40 max 0.15 max
WPC 0.35 max 0.29-1.06 0.05 0.058 0.10 min 0.40 max 0.15 max
WP1 0.28 max 0.30-0.90 0.045 0.045 0.10-0.50 0.44-0.65
WP12 CL1, WP12 CL2 0.05-0.20 0.30-0.80 0.045 0.045 0.60 max 0.80-1.25 0.44-0.65
WP11 CL1, 0.05-0.15 0.30-0.60 0.03 0.03 0.50-1.00 1.00-1.50 0.44-0.65
WP11 CL2, WP11 CL3 0.05-0.20 0.30-0.80 0.04 0.04 0.50-1.00 1.00-1.50 0.44-0.65
WP22 CL1, WP22 CL3 0.05-0.15 0.30-0.60 0.04 0.04 0.50 max 1.90-2.60 0.87-1.13
WP5 CL1, WP5 CL3 0.15 max 0.30-0.60 0.04 0.03 0.50 max 4.0-6.0 0.44-0.65
WP9 CL1, WP9 CL3 0.15 max 0.30-0.60 0.03 0.03 1.00 max 8.0-10.0 0.90-1.10
WPR 0.20 max 0.40-1.06 0.045 0.05
WP91 0.08-0.12 0.30-0.60 0.02 0.01 0.20-0.50 8.0-9.5 0.85-1.05
WP911 0.09-0.13 0.30-0.60 0.02 0.01 0.10-0.50 8.5-9.5 0.90-1.10
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