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Accurate Engineering is one one of the most reliable and trusted stockist, supplier, and Exporter of Stainless Steel Materials that are actually manufactured from High Quality of Standard Raw Materials are designed as per with national and international standards. Our offered stainless steel products like, Stainless Steel Pipe and Stainless Steel Tube are used for piping systems where resistance to stress-corrosion cracking is required. The product range includes 316/316L Pipes, 304/304L Pipes,201 Pipes in custom-made sizes and shapes as per the requirements are given by our clients and that too at an affordable and market leading prices.
Stainless steel usually containing 10 to 30 percent chromium. In conjunction with low carbon content, chromium imparts remarkable resistance to heat and corrosion. Other elements, such as aluminum, sulfur, copper, nitrogen, molybdenum, titanium, niobium, phosphorus, or selenium, may be added to increase corrosion resistance to specific environments, enhance oxidation resistance, and impart special characteristics. It was a generic name for these steels and now covers a wide range of steel types and grades for corrosion or oxidation resistant applications.
The grade most often used is Grade 304 (1.4301) for corrosion resistant reinforcement, suitable for most atmospheric and concrete covered environments.
TheGrade 316 (1.4401) has a higher molybdenum and nickel content than 304 (1.4301). It is more expensive but also has higher corrosion resistance and is the recommended grade for marine and corrosive environments.
| GRADE | OVERVIEW |
|---|---|
| 300 Series | 301 – 302 – 303 – 304/L – 304H – 316/L – 317L – 317LMN – 321 – 321H – 347 – 347H |
| 300 Series High Temp | 309 – 309S – 310 – 310S – 310H – 330 |
| 400 Series | 403 – 405 – 409 – 410 – 410S – 410HT – 416 – 416HT – 420 – 422 – 430 – 440C |
| Duplex | 2205 – 2304 – 2507 – LDX2101 |
The below table shows the chemical composition of the most used A312 Stainless Steel Pipes:
| A312 GRADES | UNS | C | Mn | P | S | Si | Cr | Ni | Mo | Ti | Nb | N |
| TP304 | S30400 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-11.0 | ||||
| TP304L | S30403 | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0-20.0 | 8.0-13.0 | ||||
| TP316 | S3160 | 0.08 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 11.0-14.0 | 2.0-3.0 | |||
| TP316L | S31603 | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | |||
| TP321 | S3210 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0-19.0 | 9.0-12.0 | 0.1 | |||
| TP321H | S32109 | 0.04-0.10 | 2 | 0.045 | 0.03 | 1 | 17.0-19.0 | 9.0-12.0 | 0.1 | |||
| TP347 | S3470 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0-19.0 | 9.0-13.0 |
| Material | Heat | Temperure | Tensile Strength | Yield Strength | Elongation %, Min |
| Treatment | Min. | Ksi (MPa), Min. | Ksi (MPa), Min. | ||
| º F(º C) | |||||
| TP304 | Solution | 1900 (1040) | 75(515) | 30(205) | 35 |
| TP304L | Solution | 1900 (1040) | 70(485) | 25(170) | 35 |
| TP316 | Solution | 1900(1040) | 75(515) | 30(205) | 35 |
| TP316L | Solution | 1900(1040) | 70(485) | 25(170) | 35 |
| Military Specification stainless Pipe & Tubing | |||
| Specification | Type | Analysis | Service |
| MIl-P-1144 | Seamless Or Welded | Stainless-All Grades | High Temperature & Pressure |
| MIl-P-24691/3 | Seamless | Stainless-All Grades | High Temperature & Pressure |
| MIl-T-8504/AMS-5567 | Seamless Or Welded | Type 304 | Corrosion & Hydraulic |
| MIl-T-8606/AMS-5560 | Seamless | 321,347,304L Stainless | Corrosion Applications |
| MIl-T-8808/AMS-5570 | Seamless | 321 & 347 Stainless | Corrosion Applications |
| MIl-T-16286 | Seamless | Class C Type 321 Or 347 | High Pressure Steam & Super Heater Generator |
| MIl-T-16286 | Seamless | Class E & F Chrome Moly | High Temperature & Pressure |
| MIl-T-23226 | Seamless | Type 304, 304L, 347 | High Pressure Steam & Super Heater Generator |