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AISI 310

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AISI 310 properties and heat treatment forged piece, Including AISI 310 application and specifications, We have all specifications，Including AISI 310 steel plate, AISI 310 sheet, AISI 310 square steel, AISI 310 flat bar,AISI 310 round bar,AISI 310 forgings, we can own production and sales.

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We can produce the AISI 310 has the following specifications:

Round bar steel: 1mm to 3000mm

Square-shape steel: 1mm to 2000mm

Plate steel:0.1mm to 2500mm

Width: 10mm to 2500mm

Lenth: We can supply any lenth based on the customer's requirement.

Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

Tubings: OD: φ6-219 mm, with wall thickness ranging from 1-35 mm.

Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement

Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement

Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.

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Chemical composition % of the ladle analysis of grade AISI 310 and Standards

SX 310 Technical Data
Summary
SX 310 is a highly alloyed austenitic Stainless steel used for high-temperature applications.  The high chromium and nickel contents give the steel excellent oxidation resistance as well as high strength at high temperatures.  This grade is also very ductile, and has good weldability enabling its widespread usage in many applications.
SX 310S is the low carbon version of SX 310 and is suggested for applications where sensitisation, and subsequent corrosion by high temperature gases or condensates during shutdown may pose a  problem.
SX 310 is manufactured in accordance with ASTM A 167 and SX 310S to ASTM A 240.
Typical Applications
SX 310/310S find wide application in all high-temperature environments where scaling and corrosion resistance, as well as high temperature strength and good creep resistance, are required.
Chemical Composition
 
SX C Mn P S Si Cr Ni
310 0.25 max 2.0 max 0.045 max 0.030 max 1.5 max 24.0 - 26.0 19.0 - 22.0
310S 0.08 max 2.0 max 0.045 max 0.030 max 1.5 max 24.0 - 26.0 19.0 - 22.0
Typical Properties in the Annealed Condition
The properties quoted in this publication are typical of mill Production and unless indicated should not be regarded as guaranteed minimum values for specification purposes.
1. Mechanical Properties at Room Temperature
 
  SX 310 SX 310S 
  Typical  Minimum Typical  Minimum
Tensile Strength, MPa 625 515 575 515
Yield Stress (0.2 % offset), MPa 350 205 290 205
Elongation (Percent in 50mm) 50 40 50 40
Hardness (Brinell) 172 - 156 -
Endurance (fatigue) limit, MPa 260 - 260 -
2. Properties at Elevated Temperatures
The values quoted are those for SX 310.
Enquire for data on 310S .
Short Time Elevated Temperature Tensile Strength
Temperature, oC 550 650 750 850 950 1050
Tensile Strength, MPa 550 430 280 180 90 50
Creep data
Stress to develop a creep rate of 1% in the indicated time at the indicated temperature.
 
Time TemperatureoC 550 600 650 700 750 800
10 000 h Stress MPa 110 90 70 40 30 15
100 000 h Stress MPa 90 75 50 30 20 10
Creep Rupture Stress
Time Temperature oC 600 700 800 900 1000
1 000 h Stress MPa 190 110 50 35 15
10 000 h Stress MPa 170 70 35 20 10
100 000 h Stress MPa 110 55 25 10 2
Recommended Maximum service Temperature
(Oxidising Conditions)
Continuous                     1150oC
Intermittent                      1035oC
Thermal Processing
1.    Annealing.  Heat from 1050 to 1150oC and water quench.  This treatment ensures that all carbides are in
       solution.
2.    Hot working
       Initial forging and pressing:                                    1150  - 1200oC
       Finishing temperature:                                            above 950oC
Note:  Soaking times to ensure uniformity of temperature are up to 12  times that required for the same thickness of mild steel.


Machining performance

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Principal Design Features

One of the most widely used precipitation hardening grades in the business. While soft and ductile in the solution annealed condition, it is capable of high properties with a single precipitation or aging treatment. Characterized by good corrosion resistance, high harness, toughness and strength.

Machinability

Long, gummy chips characterize this alloys machinability. It can be machined in the annealed condition, however condition H1150M will yield best results. Post machining solution treatment of parts will be required prior to final hardening if machining in this condition.

Heat Treatment

CONDITION A--Soak at 1900 F (1038 C) for 30 minutes and cool below 60 F (16 C) for complete martensite transformation. CONDITION H 950- Treat Condition A material at 900 F(482 C) for 1 hour, air cool.. CONDITION H925, H1025, H1075, H1100, H1150- Soak solution treated material for 4 hours at specified temperature, air cool, CONDITION H1150M- Soak solution treated material at 1400 F (760 C) for 2 hours, air cool, then re-heat to 1150 F (620 C) for 4 hours and air cool.

Welding

Successfully welded by common fusion and resistance methods, this alloy should not be joined by oxyacetylene welding. AWS E/ER630 filler metal is recommended if required.

Forging

Soak for 1 hour at 2150 F (1177 C) prior to forging. Do not work below 1850 F (1010 C). Post-work solution treatment is required prior to final hardening.




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