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SS304 stainless steel perforated plate

Core characteristics

Material advantages

  1. Corrosion resistance: Contains 18%~20% chromium and 8%~10.5% nickel. The surface passivation film can resist acid and alkali corrosion and is suitable for humid/chemical environments210.

Mechanical properties: Tensile strength ≥520MPa, yield strength ≥205MPa, elongation ≥40%, with both high strength and processing plasticity214.

Temperature range: Stable performance within -196°C to 800°C, no heat treatment hardening

  1. Perforated plate process parameters

Core characteristics Material advantages 1. Corrosion resistance: Contains 18%~20% chromium and 8%~10.5% nickel. The surface passivation film can resist acid and alkali corrosion and is suitable for humid/chemical environments210. Mechanical properties: Tensile strength ≥520MPa, yield strength ≥205MPa, elongation ≥40%, with both high strength and processing plasticity214. Temperature range: Stable performance within -196°C to 800°C, no heat treatment hardening

2. Perforated plate process parameters star_border

ITEMS‌‌Rang‌‌Describe
Thickness0.2–20mmCold rolled （0.02–4mm）Or Hot rolled（4.5–100mm）
Hole Size0.5–200mmSupports customization of round holes, square holes, diamond holes, etc
Hole designUniform array/artistic patternPrecision machining by CNC punching machine, smooth edges without burrs
  1. Core application scenarios
    Industrial field
    Filtration and screening: mine screens, granary ventilation nets (such as 60 mesh perforated plates), mechanical protective covers.
    Environmental protection equipment: wind and dust suppression nets, sound barrier sound absorption layer (used in combination with sound-absorbing cotton).
    Architecture and decoration
    Curtain wall/partition: light-transmitting but not shadow-transmitting, optimizing space lighting; hole design reduces sunlight glare.
    Safety protection: balcony anti-fall nets, anti-slip pedals (enhanced surface friction).
    Life and special uses
    Household items: decorative nets, perforated boards, kitchen utensils (corrosion-resistant and easy to clean).
    Medical/aviation: surgical instrument brackets (biocompatible), aircraft lightweight components (aluminum alloy alternatives)

Customization points

Clearly define the requirements for aperture, hole spacing, thickness and tensile strength, such as the common specification of “1.0mm thickness + 5mm aperture”.
Surface treatment: Mirror or brushed process is preferred to improve stain resistance and aesthetics

发布于

Cheap Price for DIN 34CrNiMo6 /1.6582 | 4337 QT Engineering Steel

Application:

High voltage bolts and nuts, crankshafts, camshafts, transmission axles, torsion bars, drive shafts, pump shafts, worm shafts, conveyor rollers, stems, pins, tie rods, clutch discs. Large-mass dies for hot stamping.1.6582 Steel is widely used in the aerospace industry for structural parts of flaps assembly, fuselage and landing gear, propeller plane axles.

  1. Supply Form & Size & Tolerance
Supply FormSize(mm)Process Tolerance Tolerance
RoundΦ6-Φ100Cold Drawn Bright/Black Best H11
Peeled/ground

Φ16-Φ350

Hot Rolled Black -0/+1mm

Peeled/ground
Φ90-Φ1000

Hot Forged Black -0/+5mm

Remark: Tolerance can be customized as per requests

2. Chemical Composition

StandardGradeCMnPSSiNiCrMo
EN 10083
EN 10250		34CrNiMo6/
1.6582
0.30-0.38
0.50-0.80
≤ 0.025
≤ 0.035
≤ 0.4
1.3-1.7
1.3-1.7
0.15-0.3

3. Physical Property:

Payment & Delivery

1. Both T/T and L/C will be acceptable

2. Trade Terms: FOB, CIF, CFR

3. The delivery will be in 10-15 days if have stock; For customized items, the delivery will be negotiated by both parties

4. Shipping by sea freight from Shanghai Port (PRC) for Bulk orders, by airfreight or express for samples.

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Good quality Motorcycle crankshafts from a Chinese manufacturer

Motorcycle crankshaft：

The working principle of the motorcycle crankshaft

The crankshaft of a motorcycle is a component that ignites the gasoline in the engine. The gasoline combustion work drives the live race down, and then drives the crankshaft to rotate. It also depends on the inertia of the crankshaft to maintain operation when it is not ignited. As long as the engine is started, the crankshaft will continue to rotate, and drive the magneto to generate electricity, charge the battery and use it for power devices in the car. If the gear does not go, it means pinch-clutch (hand-clutched models) or idling (auto-clutch models such as pedals or curved beams). At this time, the crankshaft is still rotating. Bending beam or pedal) the car will not go, the resistance of the engine is slightly increased, but the effect is very small, and the engine speed in neutral is the same.

The motorcycle crankshaft is one of the most important parts in the internal combustion engine. It connects the piston, connecting rod and camshaft. Its main function is to convert the reciprocating motion of the piston into the rotational motion of the output shaft, thereby driving the operation of the motorcycle.

The crankshaft consists of multiple cranks, each of which is connected to a piston and a connecting rod. When the piston moves up and down in the cylinder, the connecting rod drives the crank to rotate, and finally converts the reciprocating motion of the piston into the rotational motion of the output shaft. This motion conversion method allows the motorcycle to run smoothly and provides enough power to drive the vehicle.

The design and manufacture of the crankshaft need to take into account many factors, such as strength, weight, thermal expansion coefficient, noise and fuel consumption. Modern motorcycle manufacturers usually use high-performance alloy materials to manufacture crankshafts to improve their performance and durability.

发布于

Stock 100CrMn6/1.3520 Chromium-manganese alloy bearing steel

Applications
Roller bearings with thickness up to 50 mm. 

Description
Medium alloy, oil-hardening tooling steel, which is hard-wearing.

Quality Standard:

DIN 17230-1980 Ball and Roller Bearing Steels

Chemical Composition(%)
CSiMnPSCrNiCu
0.90-1.050.50-0.701.00-1.200.030 max0.025 max1.40-1.650.30 max0.30 max
HEAT TREATMENT:

Soft Annealing
Heat to 760-800oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 217.

Normalizing
Normalizing temperature: 860-900oC.

Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to approx. 650oC, holding for 1-2 hours at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.

Hardening
Harden from a temperature of 830-890oC followed by oil quenching. Hardness after quenching is approx. 64 HRC.

Tempering
Tempering temperature: 150-180oC.

Forging
Hot forming temperature: 1100-850oC. 

发布于

Stock Alloy solid bar 1.8509/38CrMoAl/905M39/SACM645/41CrAlMo7 Q+T with bright surface condition

1. Chemical composition

Grade        C       Si       Mn        P        S        Cr       Mo      Al
 38CrMoAl0.35-0.420.20-0.450.30-0.60   ≤0.035    ≤0.0351.35-1.650.15-0.250.70-1.10

2. Equivalent Steel Grade

GBASTMDIN
38CrMoAl71401.8509

3. Applications: 
1.Statically and dynamically stressed components for vehicles, engines and machines.

2.For parts of larger cross-sections, crankshafts, gears and so on.

4.Main features: 
1.Good resistance to tempering.

2.Excellent corrosion resistance.

3.Excellent dimensional stability during heat treatment.

4.Excellent polishing

5.Good wear resistance

发布于

Cheap price Alloy 4140/SCM440/42CrMo4 Cold Drawn Bar Precision from China mill

Yeguang steel Metal is a distributor of 4140 grade cold drawn steel bar. 4140 bars have high hardenability, and the molybdenum content provides high strength and uniformity of hardness. Unlike other grades, the carbon content of 4140 grade steel allows it to hold up well to heat treatment, while having good wear resistance and strength.

4140 Mechanical Properties (Annealed)

Tensile Strength95,000 psi
Yield Strength60,500 psi
Elongation in 2″25.7%
Reduction of Area55.9%
Brinelle Hardness197

4140 Mechanical Properties (Normalized)

Tensile Strength148,000 psi
Yield Strength95,000 psi
Elongation in 2″17.7%
Reduction of Area46.8%
Brinelle Hardness302

Chemcial Compositions(%):
Quality StandardSteel GradeCSiMnPSCrNiMo
ASTM A2941400.38-0.430.15-0.350.75-1.00≤0.035≤0.0400.80-1.10/0.15-0.25
JIS G4053SCM4400.38-0.430.15-0.350.60-0.90≤0.030≤0.0300.90-1.20≤0.250.15-0.30
EN 10083-342CrMo40.38-0.45≤0.400.60-0.90≤0.025≤0.0350.90-1.200.15-0.30/
  • ASTM A29 Standard Specification Steel Bars Carbon and Alloy Hot Wrought General Requirements 
  • JIS G4053 2008 Low alloyed steels for machine structural use
  • Steel for quenching and tempering-Part3: Technical delivery conditions for alloy steels of EN 10083-3:2007

Steel Grades

  • ASTM A29: 4140
  • JIS G4053: SCM440
  • EN10083:  42CrMo4

Surface Condition:

  • Smooth Surface
  • Grinded Surface 
  • Peeled Surface
发布于

Stockist Structural Alloy Steel 1.6582 34CrNiMo6 EN24 Round Bar

Application:
High voltage bolts and nuts, crankshafts, camshafts, transmission axles, torsion bars, drive shafts, pump shafts, worm shafts, conveyor rollers, stems, pins, tie rods, clutch discs. Large-mass dies for hot stamping.1.6582 Steel is widely used in the aerospace industry for structural parts of flaps assembly, fuselage and landing gear, propeller plane axles.

Product Description:
1.6582 Steel is a heat treatable, low alloy steel containing nickel, chromium and molybdenum. It is known for its toughness and capability of developing high strength in the heat treated condition while retaining good fatigue strength. A very popular, versatile steel. It can be heat-treated to produce a wide range of tensile strength in moderate sections.

>>>Steel Grades

Stockist Structural Alloy Steel 1.6582 34CrNiMo6 EN24 Round Bar

 DIN1.6582,

SNCM439,

35NCD6,

38Ch2N2MA,

EN24,

817M40,

34CrNiMo6,

Standard: En10083

Heat Treatment:

Annealing: Heat to 800℃ – 850 ℃ , hold until temperature is uniform throughout the section and cool in furnace.

Flame or Induction Hardening: 1.6582steel can be further surface hardened by either the flame or induction hardening methods resulting in a case hardness in excess of Rc 50. Parts should be heated as quickly as possible to the austenitic temperature range (830℃  – 860℃ ) and required case depth followed by an immediate oil or water quench, depending upon hardness required, workpiece size/shape and quenching arrangements. Following quenching to hand warm, most components should be tempered between 150℃  – 200℃ to remove quenching stresses in the case. This will have little effect on case hardness.

Hardening: Heat to 830℃  – 860℃, hold until temperature is uniform throughout the section, soak for 10 – 15 minutes per 25 mm section, and quench in oil, water, or polymer as required.

*Temper immediately while still hand warm.

Nitriding: 1.6582 steel can also be successfully nitrided, giving a surface hardness of up to Rc 60. Nitriding is carried out at 490℃– 530℃, followed by slow cooling (no quench) reducing the problem of distortion. Parts can therefore be machined to near final size, leaving a grinding allowance only. The tensile strength of the core is usually not affected since the nitriding temperature range is generally below the original tempering temperature employed. N.B. Nickel is inert to the action of nitrogen and in general resists its diffusion into steel. This can result in lower case hardness or longer nitriding cycle times for steels containing nickel such as 1.6582 steel.

Stress Relieving: Heat to 600℃– 650 ℃, hold until temperature is uniform throughout the section, soak for 1 hour per 25 mm of section, and cool in still air.

Tempering: Re-heat to 450℃– 660℃as required, hold until temperature is uniform throughout the section, soak for 1 hour per 25 mm of section, and cool in still air. N.B. Tempering should be avoided if possible within the range 250℃ – 450℃ due to temper brittleness.

Notes on Heat Treatment: Heating temperatures, rate of heating, cooling and soaking times will vary due to factors such as work piece size/shape also furnace type employed, quenching medium and work piece transfer facilities etc.

Chemcial composition:

GradeCMnPSSiCrNiMo
1.65820.30-0.380.50-0.800.025max0.035max0.40max1.30-1.701.30-1.700.15-0.30
Packing detailsIn seaworthy packing, as your requirement.
Delivery detailswithin 10-50 days

Mill′s test certificate:

EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.

发布于

AISI4340 /1.6511 /40CrNiMoA QT alloy steel round/flat bars from a Chinese factory

1. Chemical composition

C0.38-0.43%Cr0.70-0.90%
Si0.15-0.35%Mo0.20-0.30%
Mn0.60-0.80%Ni1.65-2.00%
P≤0.025%S≤0.025%

2. Equivalent Steel Grade

DIN1.6511/1.6563
ASTM A294340
JISSCM439
BS816M40
GB40CrNiMoA
EN 1026341NiCrMo 7-3-2
NF
40NCD3
ISO 68336CrNiMo4
GNSG43400

3. Q+T Properties 

Tensile Strengthσb (MPa):≥900(100)
Yield Strengthσs (MPa):≥835(85)
Elongationδ5 (%):≥12
Reductionψ (%):≥55
Impact EnergyAkv (J):≥78
Impact Toughnessαkv (J/cm2):≥98(10)
Annealed Hardness≤269HB

4. Surface Treatment

Plate: Origin Black, Orign cold rolled bright, Machined, Grinded

Bar:   Origin Black, Orign cold rolled(drawn) bright, Turned, Peeled, Grinded

5. Size

Round bar: Diameter(mm) Max 800mm; Length(mm) Max 12000mm.

Plate: Thickness(mm) Max 800mm; Width(mm) Max 2300mm; Length(mm) Max 12000mm.

Condition: Cold rolled(drawn)≤50mm, Hot rolled≤12-250mm, Hot forged≥50mm.(Thickness/Diameter)

6. Heat Treatment

1) Forging

Preheat the steel carefully, then raise the temperature to 1150-1210°C for forging. Do not forge below 850°C. 4340 has good forging characteristics but care must be taken when cooling as the steel shows susceptibility to cracking. Cooling in ash or lime after forging is recommended

2)Annealing

Heat the steel slowly to 800-860°C and allow enough time for the steel to be thoroughly heated. Cool slowly in the furnace.

3)Stress Relieving

When components are heavily machined, ground or otherwise subject to cold work, stress relieving will be beneficial prior to hardening.

4)Hardening

4340 steel is usually supplied ready heat treated. If further heat treatment is required annealed 4340 should be heated slowly to 830-865°C and after adequate soaking at this temperature quench in oil. Temper as soon as the steel reaches room temperature.

5)Tempering

Heat the steel carefully to a suitable temperature selected by reference to a tempering chart or table, soak at the temperature for 2 hours per 25mm of section, then allow to cool in air.

7. Charateristics

4340 steel offers toughness and high strength in the heat treated condition, with good fatigue strength. Available in round bar 4340 is available fully certified and suitable for applications requiring a quality high tensile alloy steel. AISI 4340 is commonly supplied quenched and tempered with a hardness of between 24 to 29HRc

8. Applications

This grade of steel is suited for shock loading or stress concentration applications such as shafts, gears, bolts, nuts, pins and couplings.

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SS316L Stainless steel round bar
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Car Steel 42CrMo AISI 4140 Alloy Steel Round Bar Per kg
发布于

Cheap price 1020 S20C C20 1.0402 Cold Drawn Carbon Flat Rectangle Steel Bar

1.Applications:

Our profiles range in cross sectional areas that fit within a 0.032″ to 2.000″ diameter circle. Depending upon the profile cross sectional area, profile configuration and customer requirements, we deliver these profiles in a wide variety of forms that include catch weight and pancake wound coils, exact length and random mill length bars, deburred and non-deburred saw cut pieces, as well as adiabatic sheared pieces for larger volume requirements. Precision cold drawing controls allow us to offer linear dimensional tolerances that range from our standard +/- 0.002″ to an optional +/- 0.0005″. For cold rolled profiles we offer standard dimensional tolerances of +/- 0.002 on thickness and +/- 0.005″ on width.

2.Product Details:

Round: .028”to3.00”(5-150mm)

Flat/Rectangles:width from .125”to5.00” Thickness from.125”to2.00”

Square: .028”to2.5”(10-150mm)

Hexagon: .028”to2.50”(5-90mm)

Centerless ground&Polished round bar: .812”to2.00”

Custom Engineered Special Steel Profile Shapes:.28”to3.00”

Tolerance: h8, h9, h10, h11

Straightness:0.5-1mm/meter

Roughness:Ra≤0.32μm, Rz≤1.6μm

3.Product Features

Wide variety of surface finishes: can reduce part finishing steps

Custom engineered processing: improves part manufacturing

Dimensional tolerances to 0.0005”: reduce machining yield losses

Custom engineered special profile shapes: reduce machining losses

4.Steel Grade Comparison

ASTM&AISI: 1006, 1010, 1018, 1035, 1045, 1055, 1060, 1070, 1090, 1095, 1521, 1522, 1541

EN&DIN: S235JRC, S355J2C, C10, C15,C45, C60, ST37, ST52, 1.0122, 1.0579, 1.0503, 1.0601

5.Process:

Raw stock of hot rolled bar→Cleaning of abrasive scale→Coating of drawing lubrication→Drawing or Multi-pass drawing→Annealing→Cutting→Inspection→Package

6.Additional Services:

Short cutting; End preparation; Quench&Tempered; Controlled Atmosphere Bar Annealing; Turned&Polished.

7.Certification:

The product is supplied with 3.1.B inspection certificate, according to the standards EN 10204 and ISO 10474.

8.Packaging:

Steel Bar come in strapped bundles with anti-corrosion oil. The minimum weight of each bundle is 2000kg; the maximum bundle weight being 5000kg.