Lap Joint

In metal fitting, a lap joint is for joining two pieces of materials by overlapping them. A lap may be divided into full lap and half lap. In a full lap joint, no material is removed from each of the members so that resulting joint is their combined thickness. In a half lap joint, material is removed from both members, resulting in a joint which is the thickness of the thickest member. A full lap is widely used for temporary framing and timber frame construction etc., while a half lap joint is extensively used for frame assembly in cabinet making.

Size
Lap joint: 1/2"～24"
DN15～DN600

Wall Thickness
sch10, sch20, sch30, std, sch40, sch60, xs, sch80, sch100,
sch120, sch140, sch160, xxs, sch5s, sch20s, sch40s, sch80s
Max. wall thickness: 200mm

Materials
Carbon steel: ASTM/ASME A234 WPB-WPC
Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911
Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N
ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti
ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H
Low temperature steel: ASTM/ASME A402 WPL 3-WPL 6
High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70

Standards
GB/T12459-2005
ASME B16.9-2007 ASME B16.25-2007
MSS SP 43-2008
BS1640-1-1962 BS1640-2-1962 BS1640-3-1968 BS1640-4-1968
AFNOR NF A 49-170-1-1999 AFNOR NF A 49-170-2-2009 AFNOR NF A 49-170-3-2009 AFNOR NF A 49-170-4-2009

Industrial Processes
Bending, squeezing, pressing, forging, machining and more

Industries Served
Our lap joints are utilized in various industries, such as power generation, petroleum, natural gas, chemicals, shipbuilding, heating, papermaking, metallurgy and so on.

As an acclaimed supplier of lap joint in China, Ahad produces a wide range of butt weld fittings, including pipe elbow, pipe bend, pipe tee, pipe cross, and pipe reducer etc. All our pipe fittings are made in accordance with ISO9000, ISO14001, GB/T28001, and Q/SY1002.1 standards. Now our products are extensively used in Belgium, Chile, Bolivia, United Arab Emirates, Brazil, South Korea and so on.
For more detailed information, please contact us directly.