Nickel Chromium Molybdenum Alloy Steel Pipe Astm B444 With Good Concentricity
ASTM B444 Nickel Chromium Molybdenum Nickel Alloy Steel Pipe
| Grade: | TP304 | TP304L | TP304LN | TP316 | TP316L | TP316LN | TP316LN | TPXM-29 | TP304N |
| UNS | S30400 | S30403 | S30453 | S31600 | S31603 | S31653 | S31653 | S24000 | S30451 |
| C, max | 0.08 | 0.035 | 0.035 | 0.080 | 0.035 | 0.035 | |||
| Mn, max | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | |||
| P, max | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | 0.045 | |||
| S, max | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | 0.030 | |||
| Si, max | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | |||
| Cr | 18.0-20.0 | 18.0-20.0 | 18.0-20.0 | 16.0-18.0 | 16.0-18.0 | 16.0-18.0 | |||
| Ni | 8.0-11.0 | 8.0-13.0 | 8.0-12.0 | 11.0-14.0 | 10.0-14.0 | 11.0-14.0 | |||
| Mo | … | … | … | 2.00-3.00 | 2.00-3.00 | 2.00-3.00 | |||
| Ti | … | … | … | … | … | … | |||
| Columbium | … | … | … | … | … | … | |||
| Tantalum | … | … | … | … | … | … | |||
| Nitrogen | … | … | 0.10-0.16 | … | … | 0.10-0.16 | |||
| Vanadium | … | … | … | … | … | … | |||
| Copper | … | … | … | … | … | … | |||
| Cerium | … | … | … | … | … | … | |||
| Boron | … | … | … | … | … | … | |||
| Aluminum | … | … | … | … | … | … |
| Grade: | TP316N | … | … | … | … |
| UNS | S31651 | N08367 | N08926 | S31254 | S32654 |
Tensil Requirements
| Grade and UNS | Tensile strength min ksi [Mpa] | Yield strength min ksi | Elongation in 2in or 50mm min % | |
| 304, 316 S30400, S31600 | 75 [515] | 30 [205] | 35 | |
| 304L, 316L S30403, S31603 | 70 [485] | 25 [175] | 35 | |
| XM-29 S24000 | 100 [690] | 55 [380] | 35 | |
| 304N, 316N S30451, S31651 | 80 [550] | 35 [240] | 20 | |
| 304LN, 316LN S30453, S31653 | 75 [515] | 30 [205] | 35 | |
Characteristic:
High Creep Rupture Strength
High antioxidant properties
Good organizational stability
Good concentricity
Good OD and ID tolerance
High Precision
Stable quality
Smooth Roughness
TORICH QUALITY ASSURANCE
Processing:
RAW MATERIAL
↓
INCOMING INSPECTION
↓
STORAGE → CUTTING→HAMMERING → PICKING LUBRICATION → CLEANING → PHOSPHORI CLEAN
↓
ENDS CUTTING←STRAIGHTENING←HEAT TREATMENT↔MIDDLLE CHECK↔ COLD DRAWING ← LUBRICATING
↓
FINAL INSPECTION→BUNDING→STORAGE
100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.
QUALITY CONTROL
1~ Incoming Raw Material Inspection
2~ Raw Material Segregation to avoid steel grade mix-up
3~ Heating and Hammering End for Cold Drawing
4~ Cold Drawing and Cold Rolling, on line inspection
5~ Heat Treatment, +A, +SRA, +LC, +N, Q+T
6~ Straightening-Cutting to specified length-Finished Measuring Inspection
7~ Machanical Testing in own labs with Tensile Strength, Yield Strength, Elongation, Hardness, Impact, Mictrostruture etc
8~ Packing and Stocking.
100% of our steel tubes are dimensionally checked
100% of our steel tubes are visually checked to assure they have a perfect surface condition and no surface defects.
100% eddy current test and ultrosonic test to eliminate longitudinal and transversal defects.
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