{"id":6679,"date":"2026-11-02T04:34:16","date_gmt":"2026-11-02T04:34:16","guid":{"rendered":"https:\/\/www.ggsteelstruct.com\/?page_id=6679"},"modified":"2026-11-04T06:25:23","modified_gmt":"2026-11-04T06:25:23","slug":"h-beams-plate-girders","status":"publish","type":"page","link":"https:\/\/www.ggsteelstruct.com\/zh\/products\/h-beams-plate-girders\/","title":{"rendered":"H-Beams & Plate Girders"},"content":{"rendered":"
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Home<\/a> \/ Products<\/a> \/ H-Beams & Plate Girders<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t

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Primary Steel<\/div>\t\t\t\t<\/div>\n\t\t\t\t
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Welded H-beams and plate girders, sized for the load instead of the catalogue<\/h1>\t\t\t\t<\/div>\n\t\t\t\t
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Rolled sections stop at fixed sizes. A welded section lets the engineer choose flange and web separately, taper the depth and put steel only where the moment is. The price of that freedom is welding, and the welds are where the checks go.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tUpload beam schedule<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tSee weld choices<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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200\u20132,000 mm<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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Web depth<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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6\u201380 mm<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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Plate thickness<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Tapered<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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Portal rafters and columns<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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SAW<\/h3>\t\t\t\t<\/div>\n\t\t\t\t
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Automatic flange welds<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tRolled vs welded<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tFlange welds<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tCapabilities<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tDesign details<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tProcess<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tTolerances<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tFAQ<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tGet a Quote<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Selection<\/div>\t\t\t\t<\/div>\n\t\t\t\t
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Rolled section or welded H?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Condition<\/th>Rolled H \/ I<\/th>Welded H \/ plate girder<\/th><\/tr><\/thead>
Standard sizes, short lead time<\/th>Better<\/strong><\/td>Longer lead time<\/td><\/tr>
Deep beams over about 900 mm<\/th>Not available<\/td>Standard<\/strong><\/td><\/tr>
Tapered portal rafters<\/th>Not possible<\/td>Standard<\/strong><\/td><\/tr>
Heavy transfer and crane girders<\/th>Limited<\/td>Better<\/strong><\/td><\/tr>
Unit cost per ton, small sizes<\/th>Lower<\/strong><\/td>Higher<\/td><\/tr>
Weight on long spans<\/th>Fixed<\/td>Steel only where needed<\/strong><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Flange-to-web welds<\/div>\t\t\t\t<\/div>\n\t\t\t\t
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Fillet or full penetration?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Your engineer decides. These are the usual reasons for each choice.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Weld<\/th>When used<\/th>Testing<\/th><\/tr><\/thead>
Double fillet by SAW<\/th>Most beams, columns and rafters<\/td>Visual 100%; MT on sample per ITP<\/td><\/tr>
Partial penetration<\/th>Thick webs with moderate shear<\/td>Visual; UT where specified<\/td><\/tr>
Full penetration (CJP)<\/th>Crane runway girders, fatigue-loaded members, high shear<\/td>UT 100% for grade 1 welds per GB 50205; AWS D1.1 \/ EN 1090-2 as specified<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\tCrane girders:<\/b> the top flange-to-web weld carries every wheel pass. Specify CJP or a fatigue-rated fillet, and tell us the crane class.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Capabilities<\/div>\t\t\t\t<\/div>\n\t\t\t\t
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What we fabricate<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Parameter<\/th>Range<\/th>Notes<\/th><\/tr><\/thead>
Web depth<\/th>200\u20132,000 mm<\/span><\/td>Constant or tapered<\/td><\/tr>
Flange width<\/th>150\u2013800 mm<\/span><\/td>Unequal flanges possible<\/td><\/tr>
Plate thickness<\/th>6\u201380 mm<\/span><\/td>Z15\/Z25\/Z35 where loaded through thickness<\/td><\/tr>
Length per piece<\/th>Up to 18 m<\/span><\/td>11.8 m for 40HQ shipping<\/td><\/tr>
Web openings<\/th>Round, rectangular, castellated<\/td>Reinforced per design<\/td><\/tr>
Camber<\/th>Cut into the web profile<\/td>Checked on the floor<\/td><\/tr>
Grades<\/th>Q235B, Q355B\u2013D, Q390, Q420; S355; A572 Gr50<\/td>EN 10204 3.1 certificates<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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From our engineers<\/div>\t\t\t\t<\/div>\n\t\t\t\t
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Four details to settle on the drawings<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\t\t\tStiffeners.<\/b> Slender webs need bearing stiffeners at supports and point loads. Missing stiffeners are the most common query we raise.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\tCamber.<\/b> State the camber and the load it is for. Camber is cut into the web, not forced in afterwards.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\tWeb openings.<\/b> Holes for ducts weaken the web. Positions should be fixed before cutting; late holes need reinforcement and approval.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t\t\t\t\tSplices.<\/b> Long girders are split for shipping. Splice at low moment; bolted splices avoid site welding.\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Process<\/div>\t\t\t\t<\/div>\n\t\t\t\t
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How a welded beam is made<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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01<\/div>\t\t\t\t<\/div>\n\t\t\t\t
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Cut plates<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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CNC flame or plasma; web profile cut for taper or camber.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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02<\/div>\t\t\t\t<\/div>\n\t\t\t\t
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Assemble H<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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Flanges and web tacked on an assembly line.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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03<\/div>\t\t\t\t<\/div>\n\t\t\t\t
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SAW welding<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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Submerged arc, balanced to limit distortion.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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04<\/div>\t\t\t\t<\/div>\n\t\t\t\t
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Straighten<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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Flange tilt corrected by roller straightener.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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05<\/div>\t\t\t\t<\/div>\n\t\t\t\t
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Fit-up<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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End plates, stiffeners and cleats welded.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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06<\/div>\t\t\t\t<\/div>\n\t\t\t\t
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Inspect<\/h4>\t\t\t\t<\/div>\n\t\t\t\t
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Dimensions and NDT per the ITP.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Tolerances<\/div>\t\t\t\t<\/div>\n\t\t\t\t
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Typical limits<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Per GB 50205 or EN 1090-2, whichever your specification names. Tighter limits on request, priced as such.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Item<\/th>Typical limit<\/th><\/tr><\/thead>
Depth<\/th>\u00b13 mm<\/span><\/td><\/tr>
Flange tilt<\/th>b\/100, max 3 mm<\/span><\/td><\/tr>
Web out-of-flatness<\/th>d\/150<\/span><\/td><\/tr>
Sweep<\/th>L\/1000, max 10 mm<\/span><\/td><\/tr>
Length<\/th>\u00b13 mm<\/span><\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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FAQ<\/div>\t\t\t\t<\/div>\n\t\t\t\t
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Beam and girder questions<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Not answered here? Ask an engineer<\/a>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Can you match a rolled section with a welded one? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Yes, but it usually costs more. Welded sections pay off where rolled sizes do not fit the load.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Do you make castellated beams? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Yes, by cutting and re-welding rolled or welded sections; your engineer checks the web posts.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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Fillet or full-penetration flange welds? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Fillet is standard. CJP where your design or fatigue requires it.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t

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What is the lead time? <\/div><\/span>\n\t\t\t\t\t\t\t\n\t\t\t<\/path><\/svg><\/span>\n\t\t\t<\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t
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Typically 2\u20134 weeks<\/span> after shop drawing approval for a few hundred tons.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Next steps<\/div>\t\t\t\t<\/div>\n\t\t\t\t
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Related pages<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\tWelded Box Columns\t\t\t\t\t<\/h4>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\n\t\t\t\t\t\tExplore \u2192\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t
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\n\t\t\t\t\tProduct\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\tCrane buildings\t\t\t\t\t<\/h4>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\n\t\t\t\t\t\tExplore \u2192\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\tProduct\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\t\tH vs I vs box\t\t\t\t\t<\/h4>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\n\t\t\t\t\t\tExplore \u2192\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\tBlog\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t
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\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t

\n\t\t\t\t\t\tWeld testing\t\t\t\t\t<\/h4>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\n\t\t\t\t\t\tExplore \u2192\t\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\tService\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
\n\t\t\t\t\t
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Beam schedule<\/div>\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t\t

Send the schedule and we price per mark<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Sections, lengths, quantities, connections, grade and any crane loads.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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\n\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\tUpload drawings<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":6636,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"footnotes":"","_aseo_title":"Welded H-Beams & Plate Girders | Tapered Frames | GG Steel","_aseo_desc":"Welded H-beams, tapered sections and plate girders: when built-up beats rolled, flange welds, Z-grade thick plate, stiffeners, camber, EN 1090 tolerances. Request quote.","_aseo_noindex":false,"_aseo_og_image":0,"_aseo_schema_type":""},"class_list":["post-6679","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.ggsteelstruct.com\/zh\/wp-json\/wp\/v2\/pages\/6679","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ggsteelstruct.com\/zh\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.ggsteelstruct.com\/zh\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.ggsteelstruct.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ggsteelstruct.com\/zh\/wp-json\/wp\/v2\/comments?post=6679"}],"version-history":[{"count":7,"href":"https:\/\/www.ggsteelstruct.com\/zh\/wp-json\/wp\/v2\/pages\/6679\/revisions"}],"predecessor-version":[{"id":7141,"href":"https:\/\/www.ggsteelstruct.com\/zh\/wp-json\/wp\/v2\/pages\/6679\/revisions\/7141"}],"up":[{"embeddable":true,"href":"https:\/\/www.ggsteelstruct.com\/zh\/wp-json\/wp\/v2\/pages\/6636"}],"wp:attachment":[{"href":"https:\/\/www.ggsteelstruct.com\/zh\/wp-json\/wp\/v2\/media?parent=6679"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}