ASTM A564 Age-Hardening Stainless Steel Bars

  • Grade: 630 (S17400), 631 (S17700), 632 (S15700), 634 (S35500), 635 (S17600), XM-12 (S15500), XM-13 (S13800), XM-16 (S45500), and XM-25 (S45000)
  • Manufacturing Methods: Hot-finished or cold-finished
  • Shapes: Rounds, Squares, Hexagons, Bar shapes, Angles, Tees, and Channels

Features

ASTM A564/A564M Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes

Chemical Composition (wt.%)
UNS No. Type C (max) Mn (max) P (max) S (max) Si (max) Cr Ni Al Mo Ti Cu
S17400 630 0.07 1.00 0.04 0.03 1.00 15.00-17.50 3.00-5.00 3.00-5.00
S17700 631 0.09 1.00 0.04 0.03 1.00 16.00-18.00 6.50-7.75 0.75-1.50
S15700 632 0.09 1.00 0.04 0.03 1.00 14.00-16.00 6.50-7.75 0.75-1.50 2.00-3.00
S35500 634 0.10-0.15 0.50-1.25 0.04 0.03 0.50 15.00-16.00 4.00-5.00 2.50-3.25
S17600 635 0.08 1.00 0.04 0.03 1.00 16.00-17.50 6.00-7.50 0.4 0.40-1.20
S15500 XM-12 0.07 1.00 0.04 0.03 1.00 14.00-15.50 3.50-5.50 2.50-4.50
S13800 XM-13 0.05 0.20 0.01 0.008 0.10 12.25-13.25 7.50-8.50 0.90-1.35 2.00-2.50
S45500 XM-16 0.03 0.50 0.015 0.015 0.50 11.00-12.50 7.50-9.50 0.5 0.90-1.40 1.50-2.50
S45503 0.01 0.50 0.01 0.01 0.20 11.00-12.50 7.50-9.50 0.5 1.00-1.35 1.50-2.50
S45000 XM-25 0.05 1.00 0.03 0.03 1.00 14.00-16.00 5.00-7.00 0.50-1.00 1.25-1.75
Mechanical Properties
UNS No. Type Condition Aging Treatment Tensile Strength, min (ksi) Yield Strength, min (ksi) Elongation in 2 in., min % Reduction of Area, min % Hardness (Rockwell C)
S17400 630 H900 900°F (480°C) / 1h 190 170 10 35 40
S17400 630 H1025 1025°F (550°C) / 4h 155 145 12 45 35
S17400 630 H1150 1150°F (620°C) / 4h 135 105 16 50 28
S17700 631 H1050 1050°F (565°C) / 4h 170 150 10 40 35
S15700 632 H925 925°F (495°C) / 4h 170 155 10 38 38
S35500 634 H1000 1000°F (540°C) / 4h 180 160 8 30 37
S17600 635 H1050 1050°F (565°C) / 4h 170 150 10 40 35
S15500 XM-12 H900 900°F (480°C) / 1h 190 170 10 35 40
S13800 XM-13 H1025 1025°F (550°C) / 4h 155 145 12 45 35
S45500 XM-16 H1150 1150°F (620°C) / 4h 135 105 16 50 28
S45000 XM-25 H900 900°F (480°C) / 1h 190 170 10 35 40

Technical Specifications

Specification Value
Standard ASTM A564/A564M Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and Shapes
Grade 630 (S17400), 631 (S17700), 632 (S15700), 634 (S35500), 635 (S17600), XM-12 (S15500), XM-13 (S13800), XM-16 (S45500), and XM-25 (S45000)
Delivery Condition Annealed, Solution Hardening or Aging
MFG. Methods Hot-finished or cold-finished
Shape of Bars Rounds, Squares, Hexagons, Bar shapes, Angles, Tees, and Channels
Density 7.93 – 7.98g/cm³
Dimension Rounds
Diameter Range: 1/8 inch (3.18 mm) to 12 inches (304.8 mm)
Squares
Side Length Range: 1/4 inch (6.35 mm) to 6 inches (152.4 mm)
Hexagons
Flat-to-Flat Range: 1/4 inch (6.35 mm) to 6 inches (152.4 mm)
Angles
Leg Length Range: 1/2 inch (12.7 mm) to 6 inches (152.4 mm)
Thickness Range: 1/8 inch (3.18 mm) to 3/4 inch (19.05 mm)
T-Shapes
Leg Length Range: 1 inch (25.4 mm) to 3 inches (76.2 mm)
Thickness Range: 1/8 inch (3.18 mm) to 1/2 inch (12.7 mm)
Channels
Flange Width Range: 3/4 inch (19.05 mm) to 3 inches (76.2 mm)
Web Height Range: 1 inch (25.4 mm) to 4 inches (101.6 mm)
Thickness Range: 1/8 inch (3.18 mm) to 3/8 inch (9.53 mm)
Inspection Certificate EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection)
Tests Chemical Analysis, Tensile Test, Hardness Test, Visual and Dimensional Inspection, Intergranular Corrosion Test, Impact Test, Ultrasonic Testing
Packing

Small diameter packed in plywood box; large diameter packed on plywood pallets.

Application

Grade

UNS No. Applications
630 S17400 Aerospace components, chemical processing equipment, nuclear reactor components, pump shafts, turbine blades, valve parts
631 S17700 Springs, fasteners, surgical instruments, and high-strength components in the aerospace and automotive industries
632 S15700 Aerospace and industrial applications requiring high strength and moderate corrosion resistance, bolts, screws, fasteners, high-stress components
634 S35500 High-performance applications, aerospace components, high-performance shafts, and mechanical parts require high stress and fatigue resistance
635 S17600 Aerospace components, nuclear reactor parts, chemical processing equipment, high strength, corrosion, and oxidation resistance at elevated temperatures
XM-12 S15500 Aerospace applications, high-strength shafts, fasteners, valve parts, excellent mechanical properties, good resistance to corrosion and stress cracking
XM-13 S13800 Aerospace and medical industries, surgical instruments, high-strength fasteners, parts requiring high toughness and moderate corrosion resistance
XM-16 S45500 High-strength components in aerospace and chemical processing industries, parts maintaining high strength and toughness at elevated temperatures
XM-25 S45000 Aerospace and industrial components requiring high strength and good corrosion resistance, fasteners, shafts, high-performance mechanical parts

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