Stainless Steel Bars

Product catalog summary

Overview: This document serves as a comprehensive guide for selecting stainless steel bars, detailing their specifications, characteristics, applications, and chemical compositions to aid in material selection for specific uses.

Specifications and Grades: Stainless steel bars are categorized into types such as Austenitic, Martensitic, Duplex, and Precipitation Hardening, each with specific grades identified by standards like UNS, ASTM, AMS, and ASME.

Characteristics and Applications: Each grade is described by its mechanical properties and corrosion resistance. For instance, Type 303 is suitable for screw machine products due to its free-machining capabilities, while Type 316 is ideal for chemical and pulp handling equipment due to its higher corrosion resistance.

Chemical Composition: The guide lists the chemical composition of each grade, including elements like chromium, nickel, carbon, and others, which are crucial for determining material properties and environmental suitability.

Mechanical Properties: Typical mechanical properties such as tensile strength, yield strength, elongation, and hardness are provided for each stainless steel type, essential for understanding performance under stress and durability.

Precipitation Hardening Treatment: Details on precipitation hardening treatments, including aging temperatures and quenching methods, are provided, highlighting the ability to achieve varied mechanical properties through low-temperature hardening.

Tolerances and Machining Allowances: Recommended machining allowances and tolerances for stainless steel bars are outlined, ensuring precision in manufacturing processes, with specific tolerances for rounds, squares, hexagons, and flats.

Conclusion: The guide is a valuable resource for selecting appropriate stainless steel bars for industrial applications, emphasizing the importance of understanding specifications, mechanical properties, and chemical compositions.

Specifications:

Dimensional Tolerances: Specific tolerances are outlined for different size ranges, such as ±.000–.004 for materials from 1/2 inch to 1 inch, and ±.000–.011 for those over 3 inches.
Rounds – Hot Rolled & Rough Turned: Tolerances vary by size, with specifications for out-of-roundness, e.g., +1/32 –0 tolerance for materials over 2 to 2-1/2 inches.
Pump Shaft Quality: Tolerances are specified for different diameters, such as +.000 –.002 for diameters from 3/4 to under 1 inch.

Procedures:

Straightness Tolerance: Standards differ for hot and cold finished materials, with hot finished having a tolerance of 1/8 inch in any 5 feet, and cold finished 1/16 inch in any foot.
Pump Shafting: Straightness is specified as .005 TIR in 3 feet, with an additional .0015 TIR for each foot over 3 feet.

Recommendations:

Maintain straightness as a perishable tolerance only on products from a full stock box.

Catalog excerpts

Castle Metals" Stainless Steel Bars Your foremost provider of specialty products, services and solutions

Open the catalog to page 1

Quik Guide toAUSTENTIC TYPE CMQ® is a registered service mark of A.M. Castle

Open the catalog to page 2

TYPE AUSTENTIC (15) NITRONIC 50®, NITRONIC 60® are registered trademarks of AK Steel. (16) SANMAC®is a registered trademark of SANDVIK Steel. (17) Some Chemical and Mechanical properties may differ contact your sales

Open the catalog to page 3

PRECIPITATION HARDENING DUPLEX MARTENSITIC TYPE (1) Castle's stainless is ordered to these specifications, however there are some restrictions by size, shape, and availability. Give us your specifications to properly service your needs. (2) All values are maximum except as noted. (3) This column is provided for your convenience. A.M. Castle & Co. cannot and does not make recommendations of type or grade of material for end use. Proper selection of material for proposed end use is our customer's responsibility. S-Sulfur Ta-Tantalum Ti-Titanium WQ-Water Quench L-Longitudinal AC-Air...

Open the catalog to page 4

TYPICAL MECH. PROPERTIES SIZE RANGE-INCHES Rounds Hexagons Squares Flats Angles TYPE AUSTENTIC DUPLEX PRECIPITATION HARDENING (5) Edge conditioned flats chemical end mechanical properties to apply. (6) Also stocked as pump shafting. Tensile strength 90/120,000 P.S.I. Yield Strength 70,000 P.S.I. min. Hardness—Approximately Brinell 207/245 (7) Mechanical properties are typical for solution treated condition. (Cond. A) (9) This section of 300 Series marked WQ (AC) are usually air cooled to minimize distortion, heavier section water quenched. (11) Solution treating temperature. (12)...

Open the catalog to page 5

Precipitation Hardening Grades Unique alloys which offer corrosion resistance that approaches Type 304. The general corrosion resistance is greatest in the fully hardened condition. The alloys can obtain a wide range of mechanical properties with low temperature precipitation hardening (aging). Typical Mechanical Properties

Open the catalog to page 6

Up to & Incl. 5/16" .003 per side except 440-C Over 5/16" 1 % of Diameter per Side Centerless Ground: All Ground **Defect Free** within the Standard Size Tolerances Example: 1-1/2" Rd. TOL is ±.003 Material must not have any defect under -.003 Rough Turned: All "R.T." sizes are produced on the plus side. Material must be defect free on size. Example: 5" Rd. HR-RT must be defect free at 5" Stainless Bar Weight Formulas ROUNDS Lbs. per lineal foot = 2.67036 x D2 SQUARES Lbs. per lineal foot = 3.4 x D2 HR-A&P Flats & Squares and Cold Drawn Flats Recommended Machining Allowances (B) Removal...

Open the catalog to page 7

Tolerances–Stainless Steel Bars ROUNDS–COLD FINISHED Under 5/16 ROUNDS–HOT ROLLED & ROUGH TURNED Over 2 to 2-1/2 SQUARE AND HEXAGON–COLD FINISHED Under 5/16 PUMP SHAFT QUALITY STRAIGHTNESS TOLERANCE Diameter Over Tolerance Under Hot Finished 1/8 Inch in Any 5 Ft., But May Not Exceed 1/8 x No. of Feet in Length 5 Cold Finished 1/16 Inch in Any Ft., But May Not Exceed 1/16 x No. of Feet in Length 5 PUMP SHAFTING .005 TIR n 3 ft. Plus .0015 TIR for Each Ft. Over 3 Ft. *Straightness is a Perishable Tolerance and Will be Maintained Only on Product of a Full Stock Box. CALL 800.BUY.CSTL (289-2785)...

Open the catalog to page 8

Stainless Steel Bars

Stainless Steel Bars

Catalog excerpts

All CASTLE METALS catalogs and technical brochures