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Tianjin Wanlei Steel Pipe Co.,Ltd
TEL: 86-22-65815991
FAX: 86-22-25343802
CELL: 86-18526839451, 86-18526839452
EMAIL: admin@wanleipipe.com
WEBSITE: www.seamlesscarbonsteelpipe.com
ADD: Room 403, Unit 1, Building 31, Polar Square, Central Business District, Binhai New Area, Tianjin, China (Mainland)
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ASTM A815 Wrought Stainless Steel Reducers
ASTM A815 forged stainless steel reducers are butt-weld pipe fittings used to change pipe diameter. Made by forging, they feature dense internal structure and great mechanical strength. Suitable for corrosive and high-temperature piping systems in chemical, petroleum and power industries. We supply multiple stainless grades and can provide test certificates upon request.
Description
Tianjin Wanlei Steel Pipe Co., Ltd. is one of the leading manufacturers and suppliers of astm a815 wrought stainless steel reducers in China, featured by quality products and low price. If you're going to wholesale durable astm a815 wrought stainless steel reducers made in China, welcome to get pricelist and free sample from our factory.
Introduction
Reducers can be used when the flow of fluids changes, such as increasing or decreasing, but the flow velocity little changes. Reducers shall be divided into concentric reducer and eccentric reducer.
ASTM A815 Specification covers two general classes, WP and CR, stainless steel fittings of seamless and welded construction. All classes of fittings shall be heat treated.
Classes WP-S, WP-W, WP-WX, and WP-WU
Classes WP-S
Class WP-S pipe fittings are those manufactured from seamless product by a seamless method of manufacture, marked with class symbol WP-S.
Class WP-W
Class WP-W pipe fittings are those which contain welds where the fitting fabrication or construction welds have been radiographed, marked with class symbol WP-W.
Class WP-WX
Class WP-WX pipe fittings are those which contain welds where all welds have been radiographed, marked with class symbol WP-WX.
Class WP-WU
Class WP-WU pipe fittings are those which contain welds where all welds have been ultrasonically tested, marked with class symbol WP-WU.
Class CR
Class CR fittings are those manufactured to the requirements of MSS SP-43.
Product show
Chemical composition
| Composition, % | ||||||
| Major Grade | WP27 | CR27 | WPS31803 | CR31803 | WP410 | CR410 |
| C max | 0.010 | 0.030 | 0.15 | |||
| Mn max | 0.75 | 2.00 | 1.00 | |||
| P max | 0.020 | 0.030 | 0.040 | |||
| S max | 0.020 | 0.020 | 0.030 | |||
| Si max | 0.40 | 1.0 | 1.0 | |||
| Ni max | 0.50 | 4.5-6.5 | 0.50 | |||
| Cr | 25.0-27.5 | 21.0-23.0 | 11.5-13.5 | |||
| Mo | 0.75-1.50 | 2.5-3.5 | - | |||
| Cu max | 0.20 | - | - | |||
| N max | 0.015 | 0.08-0.20 | - | |||
| Nb | 0.05-0.20 | - | - | |||
Surface finish and corrosion protection
01
Fittings supplied under this specification shall be examined visually. The fittings shall be free from surface discontinuities and shall have a workmanlike finish.
02
Surface discontinuities deeper than 5% of the specified nominal wall thickness shall be removed by the manufacturer by machining or grinding to sound metal, and the repaired areas shall be well faired. The wall thickness and the diameters at all point shall be shall be within the specified limits.
03
We can varnish, galvanize or coat other anti-corrosive layers on the internal and external surface of the steel reducers subject to the contract so that the commodities avoid rusting in transit.
Company Introduction
Tianjin Wanlei Steel Pipe Co., Ltd is a dedicated exporter of steel pipes and pipe fittings.
For more than 10 years, our team has been working hard in the steel export business. Over these years, we have built‑up solid business relationships with customers across many Southeast‑Asian countries.
We offer a broad product portfolio of steel pipes and fittings, all produced to meet well‑known international standards. Quality is always our top priority.
What we value most is long‑term trust with our partners. We always try our best to supply reliable products and give quick, thoughtful support to every customer.
We would love to reach more markets around the world and welcome new clients to grow together with us.
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