ZIZI ENGINEERING CO.,LTD
ZIZI ENGINEERING CO., LTD
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DIN 1.4404 / UNS S31603 stainless steel tube fittings
Our stianless steel pipe fittings have excellent strength, hardness, mechnical properties, corrosion resistance ability, good formability, and less distortion. These characteristics make us to be best pipe fitting manufacturer and exporter in the oil and gas pipeline industries.
Stainless steel types 1.4401 and 1.4404 are also known as grades 316 and 316L respectively. Grade 316 is an austenitic grade second only to 304 in commercial importance. They are widely used in various industries including petrochemical, oil and gas, power generation, bulk liquid transportation, chemicals, pharmaceuticals, pulp and paper manufacturing, textiles and others.
Specification of Stainless Steel Butt Weld Fittings
| Specification | ASTM A403 & ASME SA403 / ANSI/ASME B16.9 |
| Type | Stainless Steel Seamless Pipe Fittings / Stainless Steel Welded Fittings |
| Size Range | 1/2" NB to 80"NB in Sch 10s, STD, 40s, XS, 80s, 160s, XXS. |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D,7D, 8D, 9D, 10D or Customized |
| Pipe Fittings | Stainless Steel Pipe Reducer, Tee, Cross, Caps, Stub Ends, Elbows and Bends |
Specification of Stainless Steel Forged Fittings
| Specification | ASTM A182 & ASME SA182/ ANSI/ASME B16.11 / MSS-SP-43/79/83 |
| Type | Stainless Steel Socket Weld Fittings / Stainless Steel Threaded Fittings |
| Size Range | 1/8" NB to 4"NB in Class 2000lb, 3000lb, 6000lb, 9000lb |
| Thread Type | NPT, BSPP, BSPT, PT, G |
| Socket Weld Fittings | Stainless Steel Socket Weld Elbow, Tee, Cross, Coupling, Cap, Lateral Tee, Union |
| Threaded Pipe Fittings | Stainless Steel Threaded Elbow, Tee, Cross, Coupling, Cap, Nipple, Plug, Union |
Stainless Steel 316L Equivalent Grade
| Grade | WERKSTOFF NR. | UNS | JIS | BS | GOST | EN |
| SS 316L | 1.4404 / 1.4435 | S31603 | SUS 316L | 316S11 / 316S13 | 03Ch17N14M3 / 03Ch17N14M2 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
1.4404 Stainless Steel Chemical Composition
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo |
| TP316L/1.4404 | 0.035 | 1.00 | 2.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 |
1.4404 Stainless Steel Mechnical Properties
| Yield Tensile (Mpa) | Tensile Strength (Mpa) | Elongation (%) | Hardness (HB) |
| 170 | 485 | 40 | 217 |