| 材料 | A860 WPHY60 WPHY42 WPHY52 WPHY65 WPHY70 WPHY80 | OD： | 1/4′ 至 100′ |
|---|---|---|---|
| 表面： | 黑色喷漆或其他彩色涂层 | WT： | Sch10s 至 XXS |
| 标准： | ANSI B16.9，MSS SP 43 | ||
| 强光 | BW B16.9 Steel Pipe Fittings， SCH40 Steel Pipe Fittings， A860 WPHY60 Steel Pipe Fittings | ||
ASTM A860 WPHY60 SCH40 BW B16.9 Steel Pipe Fittings BLACK PAINTING
ASTM A860 WPHY60 is the standard specification for wrought high-strength ferritic steel butt-welding. Yield strength minimum 415 Mpa， Tensile strength 515 Mpa to 690 Mpa. Material used for make such pipe fittings are from seamless or welded steel pipe of API 5L X60， X60M， X60Q etc， used for oil and gas transmissions.
ASTM A860 是无缝和电熔焊接结构的锻造高强度铁素体钢对焊管件的标准规范。这些管件的尺寸应符合 ASME B16.9（适用于 NPS 14 及更小的尺寸）或 MSS SP 75（适用于 NPS 16 至 NPS 48 的尺寸）。它们可进一步分为 6 个等级：Wphy 42，Wphy 46，Wphy 52，Wphy 60，Wphy 65，Wphy 70。符合 ASTM A860 标准的管接头通常与 API 5L 管线管和 ASTM A694 高强度锻造法兰一起用于高压气体和石油输配系统。
ASTM A860 CARBON STEEL PIPE FITTINGS SPECIFICATIONS :
Specifications : ASTM A860 / ASME SA860
Range : ½”NB to 48″NB in Sch 10s， 40s， 80s， 160s， XXS.
Variants : Carbon Steel Pipe Fittings
Type : Seamless / Welded / Fabricated.
Bending Radius : R=1D， 2D， 3D， 5D， 6D， 8D， 10D or Custom
Dimensions : ANSI/ASME B16.9， B16.28， MSS-SP-43.
Grades : WPBW， WPHY 42， WPHY 46， WPHY 52， WPHY 60， WPHY 65 & WPHY 70.
| The Chemical Composition of ASTM A860， % | |
| 碳 | ≤0.20*A |
| 锰 | 1.00-1.45 |
| 磷 | ≤0.030 |
| 硫磺 | ≤0.010 |
| 硅 | 0.15-0.40*B |
| 镍 | ≤0.50*C |
| 铬 | ≤0.30*C |
| 钼 | ≤0.25*C |
| 铜 | ≤0.35*C |
| 钛 | ≤0.05 |
| 钒 | ≤0.10 |
| Columbium | ≤0.04 |
| Vanadium plus Columnium | ≤0.12 |
| 铝质 | ≤0.06 |
| The Mechanical Properties of ASTM A860 | |||
| 要素 | 拉伸强度 | 屈服强度（0.2%Offset） | 伸长率 |
| WPHY 65 | 515-690 | 415 | 28% |
Material， Manufacture， Heat Treatment & Tests
The high-strength pipe fittings of ASTM A860 shall be made from fully killed fine-grain material made by a melting process that is intended to produce rounded， well dispersed， fine sulphide inclusions， that promote good notch toughness， assists in the resistance to hydrogen induced cracking， and for weldability suitable for field welding. The starting raw material may consist of plate， sheet， forgings， bar， seamless and fusion-welded pipes.
All fittings shall be heat treatment by one of the methods of normalizing， quenching， tempering or stress relieving. The regular tests & inspections mainly include radiographic examination， ultrasonic test， Charpy V-Notch test， hardness test， etc. Especially， butt-weld tees manufactured by cold forming process shall be liquid penetrant or magnetic particle examined.
