SUS 630 rod, SUS 632 sheet for aerospace component, flat spring and
retain ring
SUS630 Martensitic Stainless Steel
Chinese Grade: 0Cr17Ni4Cu4Nb
(UNS S17400, AISI 630, AMS5643, ASTM A705, ASTM A564)
SUS630(Japanese Grade)is martensitic precipitation hardening
stainless steel. It has high strength, high hardness, good welding
performance and corrosion resistance. It has been widely used in
valve,shaft,chemical fiber industry and high strength parts with
certain corrosion resistance requirements.
Country | China | America | Japan | Europe |
Grade | 0Cr17Ni4Cu4Nb | ASTMS17400 | SUS630 | X5CrNiCuNb16-4 |
Characteristice and Usage
a) Precipitation hardening stainless steel with copper is used for
manufacturing parts with high corrosion resistance and high
strength, such as bearings and steam turbine parts.
b) Precipitation hardening martensitic stainless steel with copper
and niobium has low carbon content, its corrosion resistance and
weldability is better than that of common martensitic stainless
steel. Similar to type18-8 stainless steel, its heat treatment
process is simple and the machinability is good, but it is
difficult to meet the cryogenic processing.
Metallographic Structure: precipitation hardening type
Application Industry: offshore platform, helideck, other platforms, food industry, pulp
and paper industry, aerospace (turbine blade), mechanical parts and
nuclear waste barrel
Chemical Compostion%
GRADE | C | Si | Mn | P | S | Ni | Cr | Mo | Cu | Nb |
0Cr17Ni4Cu4Nb | ≤0.07 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.030 | 3.0-5.0 | 15.5-17.5 | - | 3.0-5.0 | 0.15-0.45 |
ASTMS17400 | ≤0.07 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.030 | 3.0-5.0 | 15.5-17.5 | - | 3.0-5.0 | 0.15-0.45 |
SUS630 | ≤0.07 | ≤1.00 | ≤1.00 | ≤0.04 | ≤0.030 | 3.0-5.0 | 15.5-17.5 | - | 3.0-5.0 | 0.15-0.45 |
X5CrNiCuNb16-4 | ≤0.08 | ≤1.00 | ≤1.00 | ≤0.045 | ≤0.030 | 3.0-5.0 | 15.0-17.0 | - | 3.0-5.0 | 0.15-0.45 |
Mechanical Property
Aging Temperature | 480℃ | 550℃ | 580℃ | 620℃ |
Tensile Strength σb (MPa) | ≥1310 | ≥1060 | ≥1000 | ≥930 |
Yieldσ0.2 (MPa) | ≥1180 | ≥1000 | ≥865 | 725 |
Elongationδ5 (%) | ≥10 | ≥12 | ≥13 | ≥16 |
Section Shrinkageψ (%) | ≥40 | ≥45 | ≥45 | ≥50 |
Hardness | ≥375HB/≥40HRC | ≥331HB/≥35HRC | ≥302HB/≥31HRC | ≥277HB/≥28HRC |
Heat Treatment
SUS630 alloy is precipitated, Quenched and martensitic stainless
steel with high strength, hardness and corrosion resistance.
However, its mechanical properties which can reach the compressive
strength of 1100-1300 MPa (160-190 Ksi) will be more perfect
through heat treatment.
This grade cannot be used at temperatures higher than 300 ℃ (570F)
or at very low temperature. Its corrosion resistance is the same as
that of 304 and 430 in normal atmosphere, diluted acid or salt.
FAQ
1. What's the minimum quantity customer can order?
If we have your size in stock, we can provide any quantity you
want.
If we do not have, for spool wire, we can produce 1 spool, about
2-3kg. For coil wire, 25kg.
2. How can you pay for small sample amount?
We have account, wire transfer for sample amount also ok.
3. Customer do not have express account. How will us arrange the
delivery for sample order?
Just need to provide your address information, we will check the
express cost, you can arrange the express cost together with sample
value.
4. What's our payment terms?
We can accept LC T/T payment terms, it also depending on delivery
and total amount. Let's talk more in details after getting your
detailed requirements.
5. Do you provide free samples?
If you want several meters and we have stock of your size, we can
provide, customer need to bear the International express cost.
6. What's our working time?
We will give you reply through email/phone Online contact tool
within 24 hours. No matter working day or holidays.
