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正方形 規格表
Square Specifications — 195サイズ
KS D 3568JIS G 3466ASTM A500
正方形断面の角形鋼管（スクエアチューブ）で、柱・フレーム・支持構造に使用されます。
実務上の注意点
- 4面同一強度が必要な柱・脚・支持構造に使用します。ねじりにも均等に抵抗します。
- 溶接時の残留応力による変形に注意してください。両面交互溶接で変形を最小化します。
選定ガイド
4面すべてに均等な強度が必要な柱、脚、支持構造に使用します。溶接時の直角突合せが容易で、ねじりにも均等に抵抗します。一般フレーム：t2.3〜3.2mm、重荷重：t4.5〜6.0mmを選択します。
KSSquare
59 sizes| Nominal | Width | Height | t | Weight | Material |
|---|---|---|---|---|---|
| □20×20 | 20 | 20 | 1.2 | 0.679 | SRT275 |
| □20×20 | 20 | 20 | 1.6 | 0.873 | SRT275 |
| □25×25 | 25 | 25 | 1.2 | 0.868 | SRT275 |
| □25×25 | 25 | 25 | 1.6 | 1.12 | SRT275 |
| □30×30 | 30 | 30 | 1.2 | 1.06 | SRT275 |
| □30×30 | 30 | 30 | 1.6 | 1.38 | SRT275 |
| □40×40 | 40 | 40 | 1.6 | 1.88 | SRT275 |
| □40×40 | 40 | 40 | 2.3 | 2.62 | SRT275 |
| □50×50 | 50 | 50 | 1.6 | 2.38 | SRT275 |
| □50×50 | 50 | 50 | 2.3 | 3.34 | SRT275 |
| □50×50 | 50 | 50 | 3.2 | 4.5 | SRT275 |
| □60×60 | 60 | 60 | 1.6 | 2.88 | SRT275 |
| □60×60 | 60 | 60 | 2.3 | 4.06 | SRT275 |
| □60×60 | 60 | 60 | 3.2 | 5.5 | SRT275 |
| □75×75 | 75 | 75 | 1.6 | 3.64 | SRT275 |
| □75×75 | 75 | 75 | 2.3 | 5.14 | SRT275 |
| □75×75 | 75 | 75 | 3.2 | 7.01 | SRT275 |
| □75×75 | 75 | 75 | 4.5 | 9.55 | SRT275 |
| □80×80 | 80 | 80 | 2.3 | 5.5 | SRT275 |
| □80×80 | 80 | 80 | 3.2 | 7.51 | SRT275 |
| □80×80 | 80 | 80 | 4.5 | 10.3 | SRT275 |
| □90×90 | 90 | 90 | 2.3 | 6.23 | SRT275 |
| □90×90 | 90 | 90 | 3.2 | 8.51 | SRT275 |
| □100×100 | 100 | 100 | 2.3 | 6.95 | SRT275 |
| □100×100 | 100 | 100 | 3.2 | 9.52 | SRT275 |
| □100×100 | 100 | 100 | 4 | 11.7 | SRT275 |
| □100×100 | 100 | 100 | 4.5 | 13.1 | SRT275 |
| □100×100 | 100 | 100 | 6 | 17 | SRT275 |
| □100×100 | 100 | 100 | 9 | 24.1 | SRT275 |
| □100×100 | 100 | 100 | 12 | 30.2 | SRT275 |
| □125×125 | 125 | 125 | 3.2 | 12 | SRT275 |
| □125×125 | 125 | 125 | 4.5 | 16.6 | SRT275 |
| □125×125 | 125 | 125 | 5 | 18.3 | SRT275 |
| □125×125 | 125 | 125 | 6 | 21.7 | SRT275 |
| □125×125 | 125 | 125 | 9 | 31.1 | SRT275 |
| □125×125 | 125 | 125 | 12 | 39.7 | SRT275 |
| □150×150 | 150 | 150 | 4.5 | 20.1 | SRT275 |
| □150×150 | 150 | 150 | 5 | 22.3 | SRT275 |
| □150×150 | 150 | 150 | 6 | 26.4 | SRT275 |
| □150×150 | 150 | 150 | 9 | 38.2 | SRT275 |
| □175×175 | 175 | 175 | 4.5 | 23.7 | SRT275 |
| □175×175 | 175 | 175 | 5 | 26.2 | SRT275 |
| □175×175 | 175 | 175 | 6 | 31.1 | SRT275 |
| □200×200 | 200 | 200 | 4.5 | 27.2 | SRT275 |
| □200×200 | 200 | 200 | 6 | 35.8 | SRT275 |
| □200×200 | 200 | 200 | 8 | 46.9 | SRT275 |
| □200×200 | 200 | 200 | 9 | 52.3 | SRT275 |
| □200×200 | 200 | 200 | 12 | 67.9 | SRT275 |
| □250×250 | 250 | 250 | 5 | 38 | SRT275 |
| □250×250 | 250 | 250 | 6 | 45.2 | SRT275 |
| □250×250 | 250 | 250 | 8 | 59.5 | SRT275 |
| □250×250 | 250 | 250 | 9 | 66.5 | SRT275 |
| □250×250 | 250 | 250 | 12 | 86.8 | SRT275 |
| □300×300 | 300 | 300 | 4.5 | 41.3 | SRT275 |
| □300×300 | 300 | 300 | 6 | 54.7 | SRT275 |
| □300×300 | 300 | 300 | 9 | 80.6 | SRT275 |
| □300×300 | 300 | 300 | 12 | 106 | SRT275 |
| □350×350 | 350 | 350 | 9 | 94.7 | SRT275 |
| □350×350 | 350 | 350 | 12 | 124 | SRT275 |
JISSquare
59 sizes| Nominal | Width | Height | t | Weight | Material |
|---|---|---|---|---|---|
| □20×20 | 20 | 20 | 1.2 | 0.679 | STKR400 |
| □20×20 | 20 | 20 | 1.6 | 0.873 | STKR400 |
| □25×25 | 25 | 25 | 1.2 | 0.868 | STKR400 |
| □25×25 | 25 | 25 | 1.6 | 1.12 | STKR400 |
| □30×30 | 30 | 30 | 1.2 | 1.06 | STKR400 |
| □30×30 | 30 | 30 | 1.6 | 1.38 | STKR400 |
| □40×40 | 40 | 40 | 1.6 | 1.88 | STKR400 |
| □40×40 | 40 | 40 | 2.3 | 2.62 | STKR400 |
| □50×50 | 50 | 50 | 1.6 | 2.38 | STKR400 |
| □50×50 | 50 | 50 | 2.3 | 3.34 | STKR400 |
| □50×50 | 50 | 50 | 3.2 | 4.5 | STKR400 |
| □60×60 | 60 | 60 | 1.6 | 2.88 | STKR400 |
| □60×60 | 60 | 60 | 2.3 | 4.06 | STKR400 |
| □60×60 | 60 | 60 | 3.2 | 5.5 | STKR400 |
| □75×75 | 75 | 75 | 1.6 | 3.64 | STKR400 |
| □75×75 | 75 | 75 | 2.3 | 5.14 | STKR400 |
| □75×75 | 75 | 75 | 3.2 | 7.01 | STKR400 |
| □75×75 | 75 | 75 | 4.5 | 9.55 | STKR400 |
| □80×80 | 80 | 80 | 2.3 | 5.5 | STKR400 |
| □80×80 | 80 | 80 | 3.2 | 7.51 | STKR400 |
| □80×80 | 80 | 80 | 4.5 | 10.3 | STKR400 |
| □90×90 | 90 | 90 | 2.3 | 6.23 | STKR400 |
| □90×90 | 90 | 90 | 3.2 | 8.51 | STKR400 |
| □100×100 | 100 | 100 | 2.3 | 6.95 | STKR400 |
| □100×100 | 100 | 100 | 3.2 | 9.52 | STKR400 |
| □100×100 | 100 | 100 | 4 | 11.7 | STKR400 |
| □100×100 | 100 | 100 | 4.5 | 13.1 | STKR400 |
| □100×100 | 100 | 100 | 6 | 17 | STKR400 |
| □100×100 | 100 | 100 | 9 | 24.1 | STKR400 |
| □100×100 | 100 | 100 | 12 | 30.2 | STKR400 |
| □125×125 | 125 | 125 | 3.2 | 12 | STKR400 |
| □125×125 | 125 | 125 | 4.5 | 16.6 | STKR400 |
| □125×125 | 125 | 125 | 5 | 18.3 | STKR400 |
| □125×125 | 125 | 125 | 6 | 21.7 | STKR400 |
| □125×125 | 125 | 125 | 9 | 31.1 | STKR400 |
| □125×125 | 125 | 125 | 12 | 39.7 | STKR400 |
| □150×150 | 150 | 150 | 4.5 | 20.1 | STKR400 |
| □150×150 | 150 | 150 | 5 | 22.3 | STKR400 |
| □150×150 | 150 | 150 | 6 | 26.4 | STKR400 |
| □150×150 | 150 | 150 | 9 | 38.2 | STKR400 |
| □175×175 | 175 | 175 | 4.5 | 23.7 | STKR400 |
| □175×175 | 175 | 175 | 5 | 26.2 | STKR400 |
| □175×175 | 175 | 175 | 6 | 31.1 | STKR400 |
| □200×200 | 200 | 200 | 4.5 | 27.2 | STKR400 |
| □200×200 | 200 | 200 | 6 | 35.8 | STKR400 |
| □200×200 | 200 | 200 | 8 | 46.9 | STKR400 |
| □200×200 | 200 | 200 | 9 | 52.3 | STKR400 |
| □200×200 | 200 | 200 | 12 | 67.9 | STKR400 |
| □250×250 | 250 | 250 | 5 | 38 | STKR400 |
| □250×250 | 250 | 250 | 6 | 45.2 | STKR400 |
| □250×250 | 250 | 250 | 8 | 59.5 | STKR400 |
| □250×250 | 250 | 250 | 9 | 66.5 | STKR400 |
| □250×250 | 250 | 250 | 12 | 86.8 | STKR400 |
| □300×300 | 300 | 300 | 4.5 | 41.3 | STKR400 |
| □300×300 | 300 | 300 | 6 | 54.7 | STKR400 |
| □300×300 | 300 | 300 | 9 | 80.6 | STKR400 |
| □300×300 | 300 | 300 | 12 | 106 | STKR400 |
| □350×350 | 350 | 350 | 9 | 94.7 | STKR400 |
| □350×350 | 350 | 350 | 12 | 124 | STKR400 |
ASTMSquare
77 sizes| Nominal | Width | Height | t | Weight | Material |
|---|---|---|---|---|---|
| HSS 1×1×1/8 | 25.4 | 25.4 | 3.18 | 2.01 | A500 Gr.B |
| HSS 1.25×1.25×1/8 | 31.8 | 31.8 | 3.18 | 2.65 | A500 Gr.B |
| HSS 1.25×1.25×3/16 | 31.8 | 31.8 | 4.78 | 3.59 | A500 Gr.B |
| HSS 1.5×1.5×1/8 | 38.1 | 38.1 | 3.18 | 3.28 | A500 Gr.B |
| HSS 1.5×1.5×3/16 | 38.1 | 38.1 | 4.78 | 4.54 | A500 Gr.B |
| HSS 1.5×1.5×1/4 | 38.1 | 38.1 | 6.35 | 5.52 | A500 Gr.B |
| HSS 2×2×1/8 | 50.8 | 50.8 | 3.18 | 4.55 | A500 Gr.B |
| HSS 2×2×3/16 | 50.8 | 50.8 | 4.78 | 6.45 | A500 Gr.B |
| HSS 2×2×1/4 | 50.8 | 50.8 | 6.35 | 8.05 | A500 Gr.B |
| HSS 2.5×2.5×1/8 | 63.5 | 63.5 | 3.18 | 5.82 | A500 Gr.B |
| HSS 2.5×2.5×3/16 | 63.5 | 63.5 | 4.78 | 8.35 | A500 Gr.B |
| HSS 2.5×2.5×1/4 | 63.5 | 63.5 | 6.35 | 10.6 | A500 Gr.B |
| HSS 3×3×1/8 | 76.2 | 76.2 | 3.18 | 7.09 | A500 Gr.B |
| HSS 3×3×3/16 | 76.2 | 76.2 | 4.78 | 10.3 | A500 Gr.B |
| HSS 3×3×1/4 | 76.2 | 76.2 | 6.35 | 13.1 | A500 Gr.B |
| HSS 3×3×5/16 | 76.2 | 76.2 | 7.95 | 15.8 | A500 Gr.B |
| HSS 3×3×3/8 | 76.2 | 76.2 | 9.52 | 18.1 | A500 Gr.B |
| HSS 3.5×3.5×1/8 | 88.9 | 88.9 | 3.18 | 8.35 | A500 Gr.B |
| HSS 3.5×3.5×3/16 | 88.9 | 88.9 | 4.78 | 12.2 | A500 Gr.B |
| HSS 3.5×3.5×1/4 | 88.9 | 88.9 | 6.35 | 15.6 | A500 Gr.B |
| HSS 3.5×3.5×5/16 | 88.9 | 88.9 | 7.95 | 18.9 | A500 Gr.B |
| HSS 3.5×3.5×3/8 | 88.9 | 88.9 | 9.52 | 21.9 | A500 Gr.B |
| HSS 4×4×1/8 | 101.6 | 101.6 | 3.18 | 9.62 | A500 Gr.B |
| HSS 4×4×3/16 | 101.6 | 101.6 | 4.78 | 14.1 | A500 Gr.B |
| HSS 4×4×1/4 | 101.6 | 101.6 | 6.35 | 18.2 | A500 Gr.B |
| HSS 4×4×5/16 | 101.6 | 101.6 | 7.95 | 22.1 | A500 Gr.B |
| HSS 4×4×3/8 | 101.6 | 101.6 | 9.52 | 25.7 | A500 Gr.B |
| HSS 4×4×1/2 | 101.6 | 101.6 | 12.7 | 32.2 | A500 Gr.B |
| HSS 4.5×4.5×1/8 | 114.3 | 114.3 | 3.18 | 10.9 | A500 Gr.B |
| HSS 4.5×4.5×3/16 | 114.3 | 114.3 | 4.78 | 16 | A500 Gr.B |
| HSS 4.5×4.5×1/4 | 114.3 | 114.3 | 6.35 | 20.7 | A500 Gr.B |
| HSS 4.5×4.5×5/16 | 114.3 | 114.3 | 7.95 | 25.3 | A500 Gr.B |
| HSS 4.5×4.5×3/8 | 114.3 | 114.3 | 9.52 | 29.5 | A500 Gr.B |
| HSS 4.5×4.5×1/2 | 114.3 | 114.3 | 12.7 | 37.3 | A500 Gr.B |
| HSS 5×5×1/8 | 127 | 127 | 3.18 | 12.2 | A500 Gr.B |
| HSS 5×5×3/16 | 127 | 127 | 4.78 | 17.9 | A500 Gr.B |
| HSS 5×5×1/4 | 127 | 127 | 6.35 | 23.2 | A500 Gr.B |
| HSS 5×5×5/16 | 127 | 127 | 7.95 | 28.4 | A500 Gr.B |
| HSS 5×5×3/8 | 127 | 127 | 9.52 | 33.3 | A500 Gr.B |
| HSS 5×5×1/2 | 127 | 127 | 12.7 | 42.3 | A500 Gr.B |
| HSS 6×6×3/16 | 152.4 | 152.4 | 4.78 | 21.7 | A500 Gr.B |
| HSS 6×6×1/4 | 152.4 | 152.4 | 6.35 | 28.3 | A500 Gr.B |
| HSS 6×6×5/16 | 152.4 | 152.4 | 7.95 | 34.8 | A500 Gr.B |
| HSS 6×6×3/8 | 152.4 | 152.4 | 9.52 | 40.9 | A500 Gr.B |
| HSS 6×6×1/2 | 152.4 | 152.4 | 12.7 | 52.5 | A500 Gr.B |
| HSS 6×6×5/8 | 152.4 | 152.4 | 15.88 | 63 | A500 Gr.B |
| HSS 7×7×3/16 | 177.8 | 177.8 | 4.78 | 25.5 | A500 Gr.B |
| HSS 7×7×1/4 | 177.8 | 177.8 | 6.35 | 33.4 | A500 Gr.B |
| HSS 7×7×5/16 | 177.8 | 177.8 | 7.95 | 41.1 | A500 Gr.B |
| HSS 7×7×3/8 | 177.8 | 177.8 | 9.52 | 48.5 | A500 Gr.B |
| HSS 7×7×1/2 | 177.8 | 177.8 | 12.7 | 62.6 | A500 Gr.B |
| HSS 7×7×5/8 | 177.8 | 177.8 | 15.88 | 75.6 | A500 Gr.B |
| HSS 8×8×3/16 | 203.2 | 203.2 | 4.78 | 29.3 | A500 Gr.B |
| HSS 8×8×1/4 | 203.2 | 203.2 | 6.35 | 38.4 | A500 Gr.B |
| HSS 8×8×5/16 | 203.2 | 203.2 | 7.95 | 47.5 | A500 Gr.B |
| HSS 8×8×3/8 | 203.2 | 203.2 | 9.52 | 56.1 | A500 Gr.B |
| HSS 8×8×1/2 | 203.2 | 203.2 | 12.7 | 72.7 | A500 Gr.B |
| HSS 8×8×5/8 | 203.2 | 203.2 | 15.88 | 88.3 | A500 Gr.B |
| HSS 9×9×3/16 | 228.6 | 228.6 | 4.78 | 33.1 | A500 Gr.B |
| HSS 9×9×1/4 | 228.6 | 228.6 | 6.35 | 43.5 | A500 Gr.B |
| HSS 9×9×5/16 | 228.6 | 228.6 | 7.95 | 53.8 | A500 Gr.B |
| HSS 9×9×3/8 | 228.6 | 228.6 | 9.52 | 63.7 | A500 Gr.B |
| HSS 9×9×1/2 | 228.6 | 228.6 | 12.7 | 82.8 | A500 Gr.B |
| HSS 9×9×5/8 | 228.6 | 228.6 | 15.88 | 101 | A500 Gr.B |
| HSS 10×10×3/16 | 254 | 254 | 4.78 | 36.9 | A500 Gr.B |
| HSS 10×10×1/4 | 254 | 254 | 6.35 | 48.6 | A500 Gr.B |
| HSS 10×10×5/16 | 254 | 254 | 7.95 | 60.1 | A500 Gr.B |
| HSS 10×10×3/8 | 254 | 254 | 9.52 | 71.3 | A500 Gr.B |
| HSS 10×10×1/2 | 254 | 254 | 12.7 | 93 | A500 Gr.B |
| HSS 10×10×5/8 | 254 | 254 | 15.88 | 114 | A500 Gr.B |
| HSS 10×10×3/4 | 254 | 254 | 19.05 | 133 | A500 Gr.B |
| HSS 12×12×1/4 | 304.8 | 304.8 | 6.35 | 58.7 | A500 Gr.B |
| HSS 12×12×5/16 | 304.8 | 304.8 | 7.95 | 72.8 | A500 Gr.B |
| HSS 12×12×3/8 | 304.8 | 304.8 | 9.52 | 86.4 | A500 Gr.B |
| HSS 12×12×1/2 | 304.8 | 304.8 | 12.7 | 113 | A500 Gr.B |
| HSS 12×12×5/8 | 304.8 | 304.8 | 15.88 | 139 | A500 Gr.B |
| HSS 12×12×3/4 | 304.8 | 304.8 | 19.05 | 164 | A500 Gr.B |
主な特長
- KS D 3568 (SPSR) 規格、辺長さ基準 □12〜□400mm 範囲
- 4面同一断面係数で多軸荷重・ねじりに均等抵抗
- 溶接組立時直角突き合わせ容易、切断面がそのまま接合面
主な適用分野
建築柱・ポスト、機械フレーム、ガードレール、看板支柱、家具構造体
STEPファイルダウンロード
無料の3D CADモデル（STEP AP214）。実規格寸法に基づき、無料ライブラリの慣例どおりねじ山は簡略化（plain shank）しています。
ダウンロードSQ-20x20x1.2.step
全規格・CAD使用法 →よくある質問
正方形鋼管の厚さ選択基準は？
一般フレーム：t2.3〜3.2mm、重荷重：t4.5〜6.0mm。構造計算で必要断面積と断面係数を算出して選択するのが正式です。