| 类型 | Welded/SEAMLESS | 标准： | A270 ， DIN11850 ， 3A |
|---|---|---|---|
| 材料 | TP304， TP304L， TP316L | 品牌 | TONG CHUANG |
| MOQ： | 100 KGS | 原产地 | 中国 |
| 强光 | 无缝不锈钢管， 不锈钢 | ||
OEM / Custom Stainless Steel Sanitary Tubing ASTM A270 TP304 / 304L TP316 / 316L
TONG CHUANG Special Steel’s sanitary tubing exceeds ASTM A270 S2 and 3A specifications and most user
规格它采用最优质的不锈钢材料制造，专为美国和欧洲的客户设计。
TONG CHUANG Special Steel melt criteria and formed by theTONG CHUANG Special Steel Micro-Weld™ process to
assure weld seam integrity and industry leading ID and OD finishes to the low Ra values demanded by
TONG CHUANG Special Steel’s customers. TONG CHUANG Special Steel leads the industry in manufacturing the
最高质量的焊接卫生管，以专业技术为后盾，先进的制造和
抛光能力和无与伦比的售前售后服务。所有标准卫生管尺寸
外径为 1/2 英寸（12.7 毫米）至 8 英寸（203.2 毫米），库存长度为 20'（6.1 米）。
化学成分
| 要素 | 304L（wt%） | 316L (wt%) |
| (C) 碳，最大值 | 0.035 | 0.035 |
| (锰，最大值 | 2.00 | 2.00 |
| (P) 磷，最大值 | 0.040 | 0.040 |
| (S) 硫，最大值 | 0.030 | 0.030 |
| (硅，最大 | 0.75 | 0.75 |
| (Ni) 镍 | 8.0 – 13.0 | 10.0 – 15.0 |
| (Cr) 铬 | 18.0 – 20.0 | 16.0 – 18.0 |
| (Mo) 钼 | 不适用 | 2.0 – 3.0 |
| (Fe) 铁 | 巴尔 | 巴尔 |
| (Cu) 铜 | 不适用 | 不适用 |
| (N) 氮 | 不适用 | 不适用 |
尺寸公差
所有尺寸均以英寸（毫米）为单位
| 尺寸 外径 | 标称墙壁 | 外径 | 长度 | 墙壁 |
| 1/2" (12.7) | 0.065" (1.65)/0.049" (1.25) | +/-0.005 (0.13) | +1/8" (3.18) - 0 | +/-10.0% |
| 3/4" (19.1) | 0.065" (1.65)/0.049" (1.25) | +/-0.005 (0.13) | +1/8" (3.18) - 0 | +/-10.0% |
| 1" (25.4) | 0.065" (1.65)/0.049" (1.25) | +/-0.005 (0.13) | +1/8" (3.18) - 0 | +/-10.0% |
| 1-1/2" (38.1) | 0.065" (1.65)/0.049" (1.25) | +/-0.008" (0.20) | +1/8" (3.18) - 0 | +/-10.0% |
| 2" (50.8) | 0.065" (1.65)/0.049" (1.25) | +/-0.008" (0.20) | +1/8" (3.18) - 0 | +/-10.0% |
| 2-1/2" (63.5) | 0.065" (1.65) | +/-0.010" (0.25) | +1/8" (3.18) - 0 | +/-10.0% |
| 3" (76.2) | 0.065" (1.65) | +/-0.010" (0.25) | +1/8" (3.18) - 0 | +/-10.0% |
| 4" (101.6) | 0.083" (2.11) | +/-0.015" (0.38) | +1/8" (3.18) - 0 | +/-10.0% |
| 6" (152.4) | 0.083" (2.11) | +/-0.030" (0.76) | +1" (25.4) - 0 | +/-10.0% |
| 6" (152.4) | 0.109" (2.77) | +/-0.030" (0.76) | +1" (25.4) - 0 | +/-10.0% |
| 8" (203.2) | 0.109" (2.77) | +0.061" (1.55)/-0.031" (0.79) | +1" (25.4) - 0 | +/-10.0% |
为确保所有卫生级管材的最高表面质量，同昌特钢在以下方面不遗余力
ASTM A269 和 A270 的要求，进行全套 ASTM 弯曲和变形测试
ASME SA249 所要求的测试，以及同昌特殊材料有限公司开发的附加变形测试。
Steel The tests， combined with specific raw material requirements， Eddy Current testing at the tube mill，
and tighter OD and wall tolerances allow TONG CHUANG Special Steel to provide a more consistent superior
quality product.Hydrogen bright annealed in line to 1900°F (1040°C) minimum and rapidly
quenched.
Surface finish is 20 μ-in Ra (0.5 μm) ID maximum， 30 μ-in Ra (0.8 μm) OD maximum surface
roughness measured per ASME/ ANSI B46.1 with the profilometer reading at 90 degrees to major polishing
pattern.TONG CHUANG Special Steel’s polishing techniques result in surface finishes that lead the industry.
全部 tubing is printed with size， gauge， alloy， ASTM and ASME specifications， heat number and date of
manufacturing for full traceability.As a final step in maintaining purity standards， TONG CHUANG Special Steel’s
A270 S2 tubing is packaged using protective 2 mil poly sleeving along with air tight plastic end caps. The
tubing is then placed in triple wall boxes for maximum protection during shipment. Other packaging is
available on request.
