Views: 8 Author: Site Editor Publish Time: 2024-11-28 Origin: Site
ASTM A403 Material is a standard developed by the American Society for Testing and Materials (ASTM), mainly for forged austenitic stainless steel pipe fittings. This standard specifies in detail the requirements for the manufacturing, size, tolerance, material quality, etc. of pipe fittings, and plays an important role in regulating the production, inspection and use of stainless steel pipe fittings.
ASTM A403 Material Equivalent standard
This specification covers wrought stainless steel fittings for pressure piping applications.1.2 Several grades of austenitic stainless steel alloys are included in this specification Grades are designated with a prefix,WP or CR, based on the applicable ASME Or MSS dimensional and rating standards, respectively.This specification covers the standard for wrought austenitic stainless steel fittings for pressure piping applications. The material for fittings shall consist of forgings, bars, plates, or seamless or welded tubular products. Forging or shaping operations shall be performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of two or more of these operations.
DIN / EN / ASTM Equivalent Standard
Stainless steel | ||
Material number | EN | ASTM |
1.4307 – | X2CrNi18-9 | A 403 Grade WP304L |
1.4306 X 2 CrNi 19 11 | X2CrNi19-11 | A 403 Grade WP304L |
1.4301 X 5 CrNi 18 10 | X5CrNi18-10 | A 403 Grade WP304 |
1.4541 X 6 CrNiTi 18 10 | X6CrNiTi18-10 | A 403 Grade WP321 |
1.4550 X 6 CrNiNb 18 10 | X6CrNiNb18-10 | A 403 Grade WP347 |
1.4404 X 2 CrNiMo 17 13 2 | X2CrNiMo17-12-2 | A 403 Grade WP316L |
1.4401 X 5 CrNiMo 17 12 2 | X5CrNiMo17-12-2 | A 403 Grade WP316 |
1.4571 X 6 CrNiMoTi 17 12 2 | X6CrNiTi18-10 | – |
1.4429 X 2 CrNiMoN 17 13 3 | X2CrNiMoN17-13-3 | A 403 Grade WP316LN |
1.4436 X 5 CrNiMo 17 13 3 | X3CrNiMo17-13-3 | A 403 Grade WP316 |
1.4435 X 2 CrNiMo 18 14 3 | X2CrNiMo18-14-3 | A 403 Grade WP316LN |
ASTM A403 Chemical Composition
CHEMICAL | LIMITS | C | Mn | P | S | Si | Ni | Cr | Mo | N | Cu |
ASTM A403 WP304 | MIN | 8 | 18 | ||||||||
MAX | 0.08 | 2 | 0.045 | 0.03 | 1 | 11 | 20 | ||||
ASTM A403 WP316 | MIN | 10 | 16 | 2 | |||||||
MAX | 0.08 | 2 | 0.045 | 0.03 | 1 | 14 | 18 | 3 | |||
ASTM A403 WP316L | MIN | 10 | 16 | ||||||||
MAX | 0.03 | 2 | 0.05 | 0.03 | 1 | 14 | 18 | ||||
ASTM A403 WP317 | MIN | 11 | 18 | 3 | |||||||
MAX | 0.08 | 2 | 0.05 | 0.03 | 1 | 15 | 20 | 4 | |||
ASTM A403 WP321 | MIN | 9 | 17 | ||||||||
MAX | 0.08 | 2 | 0.045 | 0.03 | 1 | 12 | 19 | ||||
ASTM A403 WP904L | MIN | 23 | 19 | 4 | 1 | ||||||
MAX | 0.02 | 2 | 0.045 | 0.035 | 1 | 28 | 23 | 5 | 0.1 | 2 |
ASTM A403 Mechanical Property
MATERIAL | ASTM A403 WP304 | ASTM A403 WP316 | ASTM A403 WP316L | ASTM A403 WP317 | ASTM A403 WP321 | ASTM A403 WP904L |
T.S (MPA) | 515 min | 515 min | 485min | 515min | 515 min | 490 min |
Y.S (MPA) | 205 min | 205 min | 170min | 205min | 205 min | 220 min |
EL % | 28 min | 28 min | 28min | 28min | 28 min | 28 min |
ASTM A403 VS A182
ASTM A182
ASTM A403 is mainly applicable to forged austenitic stainless steel butt-weld pipe fittings. These pipe fittings include elbows, tees, reducers, etc., which are widely used in pipeline systems in the chemical, petroleum, food processing and other industries, especially in situations where the good corrosion resistance, machinability and high temperature performance of austenitic stainless steel are required.
ASTM A182
ASTM A182 standard specification is for forged and rolled alloy and stainless steel pipe flanges, fittings, valves and parts for high temperature service. Common grades of alloy steel is Grade F5, F9, F11, F22, stainless steel F304/L and F316/L.
ASTM A182 has a wider range of applications, covering a variety of forged or rolled alloy and stainless steel pipe fittings, flanges and valves. It includes both austenitic stainless steel and other alloy materials, such as ferritic stainless steel, duplex stainless steel, nickel-based alloys, etc.
