180°弯头 | Buttweld 180° Elbow
| 形式/Type |
等径（1.0D、1.5D、3D、5D、8D、10D......）Straight Radius 非标带直边Non-standard with Straight end. |
| 原材料/Raw Material | 无缝管、焊管（SS）、板焊、圆钢（锻制高压用）。Seamless pipe, Welded pipe, Steel sheet. Round bar（Foring High pressure） |
| 制作工艺/Manufacture Process | 挤压、热压、冷加工、热加工、焊接、热处理 。Extrusion moulding, Hot Pressing, Cold-machining, Hot-machining, Welded, Heat treatment |
| 尺寸外径/Outside Diameter | Seamless Elbow ( 1/2″～24″), ERW / Welded / Fabricated Elbow (1/2″～48″) |
| 壁厚压力/Wall Thickness | 3mm – 40mm / SCH5, SCH10, SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| 弯头角度/Product's Angle | 5° – 180° Elbows, 90° and 45° Long Radius Elbows, Long Radius Returns, Short Radius Elbows and Returns |
| 弯曲半径/Bending Radius | R=1D – 10D, 15D, 20D |
| 增值服务/Value Added Services | 热浸镀锌，环氧树脂和FBE涂层，电抛光，喷砂，螺纹加工，焊接（Hot Dipped Galvanizing, Epoxy & FBE Coating, Electro Polish, Sand Blasting, Threading, Soldering） |
| 制造标准/Manufacturing Standards | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, GB/T12459, GB/T13401, SH3408, SH3409, JIS B2311/2220, DIN2617/2616/2615 |
Buttweld 180° Elbow Material Grades
| 不锈钢/Stainless Steel | ASTM A403 WP304, 304L, 304H, 309, 310, 316, 316L, 317L, 321, 347 |
| 碳钢/Carbon Steel | 20#, 20G,Q235-A, ASTM A 234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70 |
| 低温钢/Low Temperature Carbon Steel | 16Mn, ASTM A420 WPL3, A420 WPL6 |
| 合金钢/Alloy Steel | ASTM / ASME A/SA 234 Gr. WP 1, WP 5, WP 9, WP 11, WP 12, WP 22, WP 91, WB36, 12CrMo, 15Cr5Mo, 1Cr5Mo, 12Cr1MoV |
| 双相不锈钢钢/Duplex Steel | ASTM A 815, ASME SA 815 UNS NO S31803, S32205. S31254, 254SMO, S32750,904L |
| 镍合金/Nickel Alloy Steel | ASTM / ASME SB 336 UNS 2200 ( NICKEL 200 ), UNS 2201 (NICKEL 201 ), UNS 4400 (MONEL 400 ), UNS 8020 ( ALLOY 20 / 20 CB 3, UNS 8825 INCONEL (825), UNS 6600 (INCONEL 600 ), UNS 6601 ( INCONEL 601 ), UNS 6625 (INCONEL 625), UNS 10276 ( HASTELLOY C 276 ) |