UNS S41500 EN 1.4313 DIN X3CrNiMo13-4 Seamless Stainless Steel Tube ( Pipe )
UNS S41500, EN 1.4313, DIN X3CrNiMo13-4, F6NM is a low–carbon martensitic stainless steel with
basic corrosion resistance, good strength, good toughness and much better weldability than most martensitic
grades of stainless steel.
This grade combines the following characteristics:
- Basic pitting and crevice corrosion resistance
- Moderate sulphide stress cracking resistance
- Good yield strength (520 to 800 MPa minimum in EN standard depending on heat treatment)
- Better toughness than most martensitic grades (one of only 2 martensitic grades with guaranteed
- sub-zero impact toughness in EN pressure standards)
- Good weldability compared to other martensitic grades. Still requires pre- and post-weld heat treatment
S41500 is martensitic grade of stainless steel with several important enhancements.
The molybdenum addition gives an improved corrosion resistance.
The low carbon gives much improved weldability and along with the nickel produces excellent
toughness. The dominant use of this grade is in the oil and gas industry.
Applications which illustrate these features include:
Valve bodies, flanges, valve seats, oil field equipment, hydro-electric turbine systems, pumps,
chemical process plant, pressure die casting.
| Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
| S41500 | 0.05 max | 0.60 max | 0.5~1.0 | 0.030 max | 0.030 max | 11.5~14.0 | 0.5~1.0 | 3.5~5.5 |
Typical mechanical properities
| Tensile strength Mpa | Yield strength Mpa | Elongation min. % |
| 795 min. | 620 min. | 15 |
ASTM A268/ A 268M standard, seamless and welded ferritic and martensitic stainless steel tube
grades:
- TP405, S40500
- TP410, S41000
- TP429, S42900
- TP430, S43000
- TP443, S44300
- TP446-1, S44600
- TP446-2, S44600
- S40800
- TP409, S40900
- TP439, S43035
- TP430Ti, S43036
- TP XM-27, S44627
- TP XM-33, S44626
- 18Cr-2Mo, S44400
- 29-4, S44700
- 29-4-2, S44800
- 26-3-3, S44660
- 25-4-4, S44635
- S44735
- S32803
- S40977
- S43940
- S42035
- TP469, S46800
For Details, please Contact
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Stainless martensitic • precipitation hardening steel • stainless ferritic — Our answer to your needs
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