中文版
Home Material ASTM A705/A705M-2023
简体 | 繁體
Grade 632
USA UNS S15700
Corresponding Standard ASTM A705/A705M-2023
Standard Specification for Age-Hardening Stainless Steel Forgings
Classification Precipitation-Hardening Stainless Steel
632 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo Al
Minimum Value - - - - - 14 6.5 2 0.75
Maximum Value 0.09 1 1 0.04 0.03 16 7.75 3 1.5
632 Mechanical Properties
Thickness
t
mm		 Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Reduction of Area
ψ
% 		Hardness
HBW
/ Solution Treatment: 1040±15 °C（water quench） Rb: ≤100
HB: ≤269 ②
t≤100 (L) RH950 Hardening or Aging Treatment, ③ ≥1380 ≥1210 ≥7 ≥25 ≥415
t≤150 (L) TH1050 Hardening or Aging Treatment, ④ ≥1240 ≥1100 ≥8 ≥25 ≥375
* （L）：Longitudinal；（T）：Transverse。
① Either Rockwell C hardness or Brinell is permissible. On sizes of 12.70 mm and smaller, Rockwell C is preferred.
② 321 BHN for rounds cold drawn after solution treating.
③ 955℃ for not less than 10 min, but not more than 1 h. cool rapidly to room temperature. Cool within 24 h to minus 100 ± 75°C, hold not less than 8 h. Warm in air to room temperature. Heat to 510 °C, hold 1 h, air cool.
④ Alternative treatment: 760 °C hold 90 min, cool to 15 ± 3 °C within 1 h. Hold not less than 30 min, heat to 565 °C hold for 90 min, air cool.
Approximate Comparison Table Precipitation Hardening Stainless Steel
China Taiwan, China Japan South Korea United States International Organization for Standardization Germany France European Standard
GB ISC CNS JIS KS ASTM UNS ISO DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade
07Cr15Ni7Mo2Al
(0Cr15Ni7Mo2Al) 		S51570 632 SUS 632 STS 632 632 S15700 X8CrNiMoAl 15-7-2 X8CrNiMoAl 15-7-2 1.4532 Z8CNDA 17-07 X8CrNiMoAl 15-7-2 1.4532
632 Corresponding Standards(Same grade name, different standards)
1 ASTM A959-2004
632 S15700
2 ASTM A564/A564M-2019(a)
632 S15700
3 ASTM A693-2013
632 S15700
4 ASTM A959-2019
632 S15700
5 ASTM A705/A705M-2023
632 S15700

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!