Our to produce better steel-based products are the main used in industrial manufacturing various types Stainless SteelL80 plate,L80 Round Bar,L80 forgings,L80 suppliers, L80 Stock,L80 sheet, L80 flat bar, L80 pipe,L80 tube,L80 mould,L80 round ingot,L80 cold-rolled steel,L80 coil,L80 strap steel,L80 hot-rolled steel,L80 medium plate, L80 heavy plate,L80 shapped bar,L80 hexahedral bar,L80,L80 slab ingot,L80 slab,L80 price,L80 square bar,L80 square steel,L80 wire.Extending the industrial all kinds of mechanical industrial parts machining and, at the same time, using fine heat treatment process,tempering,hardening,heating,bright annealing,rotary hearth.chemical composition and Improving mechanical properties of L80.

Current Location:Home » Products » Stainless Steel » L80

Product category

L80

Data Table for:Products: Stainless Steel:L80

L80 properties and heat treatment forged piece, Including L80 application and specifications, We have all specifications，Including L80 steel plate, L80 sheet, L80 square steel, L80 flat bar,L80 round bar,L80 forgings, we can own production and sales.

Introduction to Our Products:

Specialized high quality steel

We have the advantages of equipment, technologies and price

forged/hot rolling/ extrusion of steel

We can produce the L80 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.

Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.

We serve you with our honesty, integrity, and professionality.

Chemical composition % of the ladle analysis of grade L80 and Standards

L80 13Cr
 

ISO category:   13-1-0 
Common names:  13Cr 

What is L80 13Cr
L80 13Cr is a grade 80ksi martensitic stainless steel described in API 5CT and ISO 11960 (tubulars in carbon and low alloy steels). The alloy is widely used in tubular form for casing and tubing in Standard and CO2 environment. pH, chlorides, temperature and H2S can limit its use in other environments. ISO 15156-3 limits the hardness to 22 HRC max for sour service. The alloy is almost similar to AISI 420 modified.
Delivery conditions
It is being supplied in the quenched and tempered (QT) condition or in the hot finish (HF) condition.
Applications
Extensively used on completion equipment in tubular form.
Chemical composition
Table 1: Chemical composition

C Si Mn P S Ni Cr Mo Al Ti
Min 0.15 - 0.25 - - - 12.0 - - -
Max 0.22 1.00 1.0 0.02 0.01 0.5 14.0 - - -
Nb(Cb) Cu Co B Fe W V N O PREN
Min - - - - Bal - - - - 12.0
Max - 0.25 - - - - - - - 14.0

Pitting index PREN = %Cr + 3.3%Mo + 16%N
Mechanical and physical properties
An introduction to mechanical and physical properties follows. These properties are dependent on the specific alloy composition and heat treatment. Detailed data is available in material datasheets from suppliers and material property handbooks.
Table 2: Mechanical properties, grade 80ksi, quenched and double tempered (above 590ºC)

Mechanical properties -10ºC 20ºC 200ºC
Tensile strength, yield (min.) - 551 MPa (80ksi) -
Tensile strength, yield (typical) - - -
Tensile strength, ultimate (min.) - 655 MPa (95ksi) -
Tensile strength, ultimate (typical) - - -
Tensile modulus (typical) - - -
Torsion modulus (typical) - - -
Elongation (min.) - - -
Red. of area (min.) - - -
Charpy V-notch impact (typical) - - -
Fracture toughness KIC (typical) - - -
Hardness (ISO 15156-3 limit) - 22 HRC -
Hardness (typical) - -
Fatigue strength (% of T.S.U) - - -

The yield strength shall not be higher than 80ksi for sour service. L80 13Cr is an 80ksi grade as indicated. All tubes are delivered in the quenched and tempered (QT) condition or in the hot finish (HF) condition.
Table 3: Physical properties

Physical properties -40ºC 20ºC 200ºC
Density - - -
Thermal expansion coefficient - - -
Thermal conductivity - - -
Specific heat - - -
Electrical resistivity - - -
Poisson’s ratio - - -
Magnetic permeability - -

Machining and welding properties
The Machining properties are good, but difficult to weld, and requires special welding procedures. Make sure that the vendor has these procedures, including preheating and post weld heat treatment. Also make sure they have sufficient test of mechanical properties and corrosion resistance for the HAZ. Typical problems in the HAZ are cracks.
Failure mechanism resistance
13%Cr steel is very sensitive to oxygen and chlorine contamination. Corrosion will therefore take place during sea water injection. The corrosion rate is highest at the bottom since the temperature is highest in this area, especially during shut-in of the well. The alloy is not recommended for temperatures above 100ºC and chloride environments above 50 000 ppm.
Table 4: Failure mechanism resistance

Poor Good Excellent
Sulphide Stress Cracking Stress Corrosion Cracking -
Pitting and crevice corrosion CO2 corrosion -
General corrosion at low pH - -

Details for material specific failure mechanisms are described in appendix A. General descriptions of failure mechanisms are given in the failure mechanism database.
Surface treatments
Typical surface treatments used for this ally are:
Processing problems
NA
Design codes
Relevant design codes are:
The alloy is not described in ISO 13680 together with corrosion resistant alloys but with the low alloy steels in ISO 11960.
Costs
Inexpensive.
Sources
The main sources for this document are:


Machining performance

Download L80 the mechanical properties of the report, the report provides detailed performance analysis and application. Download >>

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.




Hot tags:L80 steel plate, L80 sheet, L80 square steel, L80 flat bar,L80 round bar,L80 forgings