Description

ASME B16.11 Square Head Plug Manufacturer & Exporter.

Estan pipe fittings is a premier Square Head Plug manufacturer and supplier in China. Based on different materials, our Square Head Plugs can be sorted into carbon steel Plug, stainless steel Square Head Plug, alloy steel Square Head Plug, high-strength steel Square Head Plug, low-temperature steel Square Head Plug, etc.

These products have passed ISO 9001-2015, Pressure Equipment Directive 97/23/EC (PED 97/23/EC), AD2000 Merkblatt W0, and API certification, and are used by NIGC, Petrobras, Pemex, CNPC, Sinopec, and CNOOC. Our Square Head Plugs have been exported to over 36 countries, including Italy, Germany, Spain, France, Russia, the United States, Brazil, Iran, India, etc.

ASME B16.11 Square Head Plug Standard Specification

Dimensions	ASME 16.11
Size	1/8″ NPS TO 4″ NPS
Class	2000 LBS, 3000 LBS, 6000 LBS
Value Added Services	Hot Dipped Galvanizing, Epoxy & FBE Coating, Electro Polish, Sand Blasting, Threading, Soldering
Production Grades	Stainless Steel Plug, Alloy Steel Plug, Duplex, Nickel Alloys, Low-temperature Steel Plug, Carbon Steel Plug.

Square Head Plug Material Specification

Stainless Steel Square Head Plug: ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L
Duplex & Super Duplex Steel Square Head Plug: ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Carbon Steel Square Head Plug: ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706
Low Temperature Carbon Steel Square Head Plug:ASTM A350, LF2, LF3
Alloy Steel Square Head Plug: ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91

Copper Alloy Steel Square Head Plug: ASTM SB 61, SB62, SB151, SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200
Nickel Alloy Steel Square Head Plug: ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020)

Marking & Packing

Products are packaged to ensure that there is no damage during transit. In case of exports, the standard export packaging is done in wooden cases. All forged fittings are marked with Grade, Lot No, Size, Degree, and our trademark. On special requests, we can also, make custom marking on our products.

Quality Assurance

At Estan pipe fittings, all fittings and flanges are subject to strict inspection at each stage of the production process, from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, MSS, DIN, EN, and JIS codes and standards. Upon request, official certified Inspection Agencies can be called in to witness the material reports, dimensions and quality conformity of products.