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ASTM A705 Specification

Forgings, Fasteners, Boltings, Stud Bolts, Screws, Nuts

Scope

ASTM A705 specification covers age-hardening stainless steel forgings for general use

Related Specifications of ASTM A705

ASTM A705 Chemical Composition

UNS
DesignationB		 Type C Mn P S Si Cr Ni Al Mo Ti Cu Other Elements
S17400 630 0.07 1.00 0.040 0.030 1.00 15.00-17.50 3.00-5.00 ... ... ... 3.00-5.00 C
S17700 631 0.09 1.00 0.040 0.030 1.00 16.00-18.00 6.50-7.75 0.75-1.50 ... ... ... ...
S15700 632 0.09 1.00 0.040 0.030 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 0.040 0.030 0.50 15.00-16.00 4.00-5.00 ... 2.50-3.25 ... ... D
S17600 635 0.08 1.00 0.040 0.030 1.00 16.00-17.50 6.00-7.50 0.40 ... 0.40-1.20 ... ...
S15500 XM-12 0.07 1.00 0.040 0.030 1.00 14.00-15.50 3.50-5.50 ... ... ... 2.50-4.50 C
S13800 XM-13 0.05 0.20 0.010 0.008 0.10 12.25-13.25 7.50-8.50 0.90-1.35 2.00-2.50 ... ... E
S45500 XM-16 0.03 0.50 0.015 0.015 0.50 11.00-12.50 7.50-9.50 ... 0.50 0.90-1.40 1.50-2.50 F
S45503 ... 0.010 0.50 0.010 0.010 0.20 11.00-12.50 7.50-9.50 ... 0.50 1.00-1.35 1.50-2.50 F
S45000 XM-25 0.05 1.00 0.030 0.030 1.00 14.00-16.00 5.00-7.00 ... 0.50-1.00 ... 1.25-1.75 G
  • B New designation established in accordance with Practice E 527 and SAEJ1086, Recommended Practice for Numbering Metals and alloys (UNS).
    C Columbium plus tantalum 0.15–0.45.
    D Nitrogen 0.07–0.13.
    E Nitrogen 0.01.
    F Columbium plus tantalum 0.10–0.50.
    G Columbium 8 times carbon minimum.

ASTM A705 Mechanical Requirements

ASTM A705 Heat Treatment

Type Condition Solution Treatment Tensile Strength, min Yield Strength, min Elongation in 2 in. [50 mm] or 4D, min. % Reduction of Area, minute % HardnessB
ksi [MPa] ksi [MPa] Rockwell C, max Brinell, max
630 A 1900 6 25°F [1040 6 15°C] (cool as required to below 90°F [32°C]) . . . . . . . . . . . . . . . . . . 38 363
631 A 1900 6 25°F [1040 6 15°C] (water quench) . . . . . . . . . . . . . . . . . . Rb89 229
632 A 1900 6 25°F [1040 6 15°C] (water quench) . . . . . . . . . . . . . . . . . . Rb100 269C
634D A 1900 6 25°F [1040 6 15°C] quench, hold not less than 3 h at minus 100°F or lower . . . . . . . . . . . . . . . . . . . . . 363D
635 A 1900 6 25°F [1040 6 15°C] (air cool) 120 [825] 75 [515] 10 45 32 302
XM-12 A 1900 6 25°F [1040 6 15°C] (cool as required to below 90°F [32°C]) . . . . . . . . . . . . . . . . . . 38 363
XM-13 A 1700 6 25°F [925 6 15°C] (cool as required to below 60°F [16°C]) . . . . . . . . . . . . . . . . . . 38 363
XM-16 A 1525 6 25°F [830 6 15°C] (cool rapidly) . . . . . . . . . . . . . . . . . . 36 331
S45503 A 1525 6 25°F [830 6 15°C] (cool rapidly) . . . . . . . . . . . . . . . . . . 36 331
XM-25 A 1900 6 25°F [1040 6 15°C] (cool rapidly) 125E [860] 95 [655] 10 40 33 311
  • B Either Rockwell C hardness or Brinell is permissible. On sizes of 1⁄2 in. (12.70 mm) and smaller, Rockwell C is preferred.
    C 321 BHN for rounds cold drawn after solution treating.
    D Equalization and over-tempering treatment 1425 6 50°F [775 6 30°C] for not less than 3 h, cool to room temperature, heat to 1075 6 25°F [580 6 15°C] for not less than 3 h.
    E 125 − 165 ksi [860 − 1140 MPa] for sizes up to 1⁄2 in. [13 mm]

ASTM A705 Certifications

  • EN 10204 3.1
  • EN 10204 3.2
  • PED 2014/68/EC
  • MERKBLATT AD 2000 W2/W7/W10
  • API 20 E BSL 1/ BSL 2
  • NACE MR 0175
  • NACE MR 0103