Description
Introduction:
SUS 630 is a corrosion resistant grade which is soft and ductile in the solution annealed condition. Medium to high strength, good toughness and strength is obtained by the appropriate ageing treatment. As a martensitic precipitation hardening stainless it is characterised by high tensile strength and high yield strength obtained by solution annealing, followed by a single or double low temperature age hardening treatment. SUS 630 has corrosive properties comparable to 304 austenitic stainless steel in many environments.
The alloy is usually produced by BEF & AOD followed by electroslag remelting (ESR) / VAR if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
Bars are usually supplied black/bright in the annealed condition.
SUS 630 is a corrosion resistant grade which is soft and ductile in the solution annealed condition. Medium to high strength, good toughness and strength is obtained by the appropriate ageing treatment. As a martensitic precipitation hardening stainless it is characterised by high tensile strength and high yield strength obtained by solution annealing, followed by a single or double low temperature age hardening treatment. SUS 630 has corrosive properties comparable to 304 austenitic stainless steel in many environments.
The alloy is usually produced by BEF & AOD followed by electroslag remelting (ESR) / VAR if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
Bars are usually supplied black/bright in the annealed condition.
Applications:
Commonly used in industries such as offshore, marine, food, paper mills, oil field and aerospace. SUS 630 is used for components such as fasteners, couplings, screws, bushings, studs, fittings, valve stems, roller, wear rings.
Commonly used in industries such as offshore, marine, food, paper mills, oil field and aerospace. SUS 630 is used for components such as fasteners, couplings, screws, bushings, studs, fittings, valve stems, roller, wear rings.
Technical Standard:
JIS 4311
JIS 4311
All Grades Comparison
| DIN | ASTM | AISI | UNS | JIS | Other |
|---|---|---|---|---|---|
| 1.4542 X5CrNiCuNb16-4 |
Grade 630 | 630 | S17400 | SUS 630 | 17-4PH AMS 5643 AMS 5622 Z6CNU17-04 10705GU-GV |
| C | Si | Mn | P | S | Cr | Ni | Mo | Other |
|---|---|---|---|---|---|---|---|---|
| ≤ 0.07 | ≤ 1.00 | ≤ 1.00 | ≤ 0.040 | ≤ 0.030 | 15.0 ～ 17.0 | 3.00 ～ 5.00 | - | Cu 3.00 ～ 5.00 Nb+Ta 0.15 ～ 0.45 |
Mechanical Properties
| Condition of heat treatment | Tensile Rm(MPa) |
Yield Rp0.2(MPa) |
Elongation A(%) |
Reduction in cross section on fracture Z (%) |
Impact AKV/AKU(J) |
Brinell Hardness(HBW) |
|---|---|---|---|---|---|---|
| Annealed | ≤ 1034 | ≤ 650 | 6.0 ～ 15.0 | 30.0 ～ 60.0 | - | ≤ 363 |
| H900 | ≥ 1380 | ≥ 1275 | ≥ 14.0 | ≥ 50.0 | ≥ 20 | ≤ 420 |
| H925 | ≥ 1310 | ≥ 1200 | ≥ 14.0 | ≥ 54.0 | ≥ 34 | ≤ 409 |
| H1025 | ≥ 1170 | ≥ 1140 | ≥ 15.0 | ≥ 56.0 | ≥ 47 | ≤ 352 |
| H1075 | ≥ 1140 | ≥ 1035 | ≥ 16.0 | ≥ 58.0 | ≥ 61 | ≤ 341 |
| H1100 | ≥ 1035 | ≥ 930 | ≥ 17.0 | ≥ 58.0 | ≥ 61 | ≤ 332 |
| H1150 | ≥ 1000 | ≥ 860 | ≥ 19.0 | ≥ 60.0 | ≥ 68 | ≤ 311 |
| H1150+H1150 | ≥ 965 | ≥ 760 | ≥ 20.0 | ≥ 60.0 | ≥ 108 | ≤ 302 |
| H1150M | ≥ 860 | ≥ 585 | ≥ 22.0 | ≥ 68.0 | ≥ 135 | ≤ 277 |
Forms and Shapes:
Round bar (Diameter): 5.5 mm to 700 mm
Wire rod (Diameter): 0.10 ~ 16mm
Square bar / Flat bar: 5mm to 550mm
Steel strip via cold rolled: T0.1 - 3mm X W5 - 650mm X L (or in coil form)
Forged ring: OD200 ~ 1500mm X ID150 ~ 1250mm X H20 ~ 1250mm
Heavy/middle plate via hot rolled: T50 - 200mm X W80- 1200mm X L1000-3000mm
Forging piece: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.
Length: Fixed length or random length or based on the customer's special requirement.
Company Information
