Rathbone Precision Metals, Inc. Profile Capabilities

PROFILE DIMENSIONAL TOLERANCES

Characteristic Standard Rolling Tolerance Standard Drawing Tolerance Optional
Linear ± .002" Thickness
± .005" Witdh
±.002" All ±.0005"
Radial ±.010" Shape Dependent ± .005" small radii
± .010" large radii
± .002"
Corners/Fillets Dependent on location on profile .015" max-90° Blend on Obtuse .005" max - 90° Obtuse - Review
Surface Finish 63 Ra 125 Ra 40 Ra
Size Limitations Typically less than 1.5" Typically Range .032** to 2.0" Configuration Dependent

ADDITIONAL CONDITIONS

Characteristic Standard Tolerances Optional
Straightness

Twist
.020" / Ft. cumulative
.030" / Ft. cumulative - small wire
± 2° per foot
.005" / Fl
Temper As Drawn or As Rolled Stress Relieved Annealed Heat Treated (Outside)
Decarburization Not checked unless there is a customer requirement .005" max total and or partial- Requires surface improved raw stock
Lengths 10'-12' from coil raw material 8'-14' from bar raw material with variation in length to be within ± 1.0" Dead Lengths Abrasive / Cold Saw Pieces ± .005" on cut pieces
Mechanical Properties Rockwell Hardness reported if required by customer Outside Testing Available
Surface Coatings Carbon & Alloy - Phosphate & Soap Stainless - Cleaned dull matte finish Copper & Brass - Residual Soap Bright & Shiny Appearance
Cut Ends Deformed Pinch cut/ Shear cut Shaped Shear, Saw cut ends
Shipping Containers Retdi Crate Wooden Boxes, Spools Banded Buntres
Hardness Range Values Carbon HRB 75- HRB 95 Alloy HRB 90 - HRC 28 Stainless HRB 90-HRC 25 Copper & Brass HRB 60-HRB 85 May be adjusted by modification of cold work reductions

PARTIAL LISTING OF MATERIALS

CATEGORY GRADE
Carbon Steel 1006, 1010, 1018, 1022, 1030, 1040, 1050, 1060, 1070, 1095
Free Cutting 1117, 1137, 1441. 1144, 1215, 12L14
Alloy Steels 4130,4140,4150,4340, 4820, 6150, 8620, 8640, 8650,9310,52100
300 Series Stainless 302, 303, 304, 305, 316, 316LS, 321
400 Series Stainless 403,405,410,416,420. 430,430F, 430FR, 450, 455, Trimrite
High Temperature Pyromct A286, 600, 625, 718
Copper, Brass, Bronze 101, 102, 110, 182, 187, 230,260,270, 335, 340, 360,464,510,521,544, 651,655, 706,715, 752
Nickel- Copper 400, 405

CUSTOMER ADVANTAGES

  • Reduced Machining
  • Higher Strength
  • Smoother Surfaces
  • Minimized Scrap
  • Closer Tolerances
  • Consistent Dimensions
  • Better Grain Structure
  • Lot to Lot Repeatability
  • Less processing time

QUOTATION to PRODUCTION PROCESS

QUOTATION to PRODUCTION PROCESS

INVOLUTE GEARS

INVOLUTE GEARS

Information Required

  1. Number of Teeth
  2. Diametral Pitch
  3. Pressure Angle

Standard Tolerances

  • Outside Diameter ±.002″
  • Measure over pins ±.0015″
  • Root Diameter ± .005″

Gear is not checked to any specific AGMA level as tooth profile is checked using an optical comparator.

See All

News & Events

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    [February 5, 2019]

    Cold rolled steel and cold drawn steel refer to two separate processes used to cold form steel into shapes.  Although both processes are accomplished... Read More

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    [November 12, 2018]

     Cold rolled steel is frequently used in projects or applications requiring enhanced mechanical properties, tolerances, and surface finish. Because the material is shaped at... Read More

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    [October 15, 2018]

    Rathbone Precision Metals provides high-precision metal parts for a variety of sectors, including the power generation, aerospace, firearms, manufacturing, and medical industries. We specialize... Read More

Calvi Network Companies Represented by Rathbone