High Tensile Type·Dual-phase Type Stainless Steel
- 1.Characteristics·Applications
- 2.Chemical Composition
- 3.Physical·Mechanical Properties
- 4.Surface Finish
Characteristics·Applications
※NSS is NIPPON STEEL Stainless Steel Corporation original standard.
| Classification |
Type | Characteristics | Applications | |
|---|---|---|---|---|
| SUS (JIS) |
NSS | |||
| High Tensile Type (including precipitation hardening type) |
HT980 | High strength can be obtained by quench hardening at 750℃ or higher temperatures. |
steel belts, high tension materials for welding |
|
| (632J1) | HT1770 | Workable at low hardnesses because of high hardenability
obtainable with age-hardening.High workability and long mold life.
|
seat sensor parts, punched springs |
|
| HT1770M | High toughness,high strength and high fatigue strength can be obtained by adding molybdenum. |
steel belts, golf club head |
||
| HT2000 | High strength with ductility,toughness and fatigue strength. |
ID saw blade, flapper valve |
||
| Dual-phase Type |
431DP2 | Spring characteristics can be obtained by a short-time age-hardening. |
automotive parts, wrapping carrier, press plate |
|
Usage examples
Tweezers:NSSHT1770
Golf club head:NSSHT1770M
Chemical Composition
※NSS is NIPPON STEEL Stainless Steel Corporation original standard.
| Classfication | Type | Chemical Composition(%) | |||||
|---|---|---|---|---|---|---|---|
| SUS (JIS) |
NSS | C | Ni | Cr | Mo | Others | |
| High Tensile Type (including precipitation hardening type) |
HT980 | 0.03~0.06 | 3.00~5.00 | 12.00~14.00 | Ti:0.15~0.50 | ||
| (632J1) | HT1770 | ≦0.09 | 6.50~7.75 | 13.50~15.50 | Si:1.00~2.00 Cu:0.40~1.00 Ti:0.20~0.65 |
||
| HT1770M | ≦0.09 | 6.50~7.75 | 13.00~14.50 | 0.70~1.20 | Si:1.00~2.00 Cu:0.40~1.00 Ti:0.20~0.65 |
||
| HT2000 | 0.05~0.10 | 7.80~8.80 | 13.00~14.00 | 1.80~2.70 | Si:2.20~3.20 | ||
| Dual-phase Type | 431DP-2 | ≦0.08 | 1.00~3.00 | 16.00~18.00 | |||
Physical·Mechanical Properties
※NSS is NIPPON STEEL Stainless Steel Corporation original standard.
| Classfication |
Type | Physical Properties | Mechanical Properties | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| SUS (JIS) |
NSS | Modulus of elasticity X103 N/mm2 |
Specific gravity g/cm3 |
Average modulus of thermal expansion X10-6 cm/cm/℃ |
Thermal condu- ctivity W/m・℃ |
Hardness test | Tensile test | ||||
| HRB | HV | Yield strength N/mm2 |
Tensile strength N/mm2 |
Elongation % |
|||||||
| 20~100℃ | 100℃ | ||||||||||
| High Tensile Type |
HT980 | 203 | 7.75 | 10.8 | 20.5 | _ | 300~400 | 800~1050 | 950~1200 | 4~8 | |
| (632J1) | HT1770 | 207 | 7.75 | 10.9 | 24.9 | _ | 300~400 (450~550) |
900~1300 *(1300~1800) |
1000~1400 (1500~1900) |
1~7 (1~7) |
|
| HT1770M | 207 | 7.75 | 10.9 | 24.9 | _ | 300~400 (450~550) |
900~1300 *(1300~1800) |
1000~1400 (1500~1900) |
1~7 (1~7) |
||
| HT2000 | 200 | 7.80 | 14.0 | 20.8 | _ | 500~650 | 1600~2200 | 1700~2400 | 1~7 | ||
| Dual-phase Type |
431DP-2 | 201 | 7.73 | 10.5 | 19.9 | _ | 340~420 | 700~1200 | 1000~1300 | 5~13 | |
When NSS and SUS overlap, NSS standard (an ingredient, a characteristic) has priority to display.
+High Tensile Type and Dual-phase Type's material mechanical properties are an example of the examination value range.
If you have any request of an individual intensity level with a case, kindly contact us beforehand.
*HT1770 and HT1770M ( )is an example of the examination value range after aging treatment.
Surface Finish
※NSS is NIPPON STEEL Stainless Steel Corporation original standard.
| Classification | JIS | NSS | Finish |
|---|---|---|---|
| Hot-rolled Products |
N0.1 | Heat-treated and pickled after hot rolling. |
|
| CG | Given No.1 finish and polished with any of endless belts specified in JIS R6001,but not degreased. |
||
| Cold-rolled Products | N0.2D | Heat-treated and pickled after cold rolling. |
|
| NO.2DR | Heat-treated,pickled and lightly cold-rolled by dull rolls after cold rolling. |
||
| NO.2B | Heat-treated,pickled and lightly cold-rolled to obtain appropriate luster surface after cold rolling. |
||
| N0.3 | Polished with endless belt of No.100 to 120 specified in JISR6001. |
||
| N0.4 | Polished with endless belt of No.150 to 180 specified in JISR6001. |
||
| #240 | Polished with endless belt of No.240 specified in JISR6001. |
||
| #320 | Polished with endless belt of No.320 specified in JISR6001. |
||
| #400 | Polished with endless belt of No.400 specified in JISR6001. |
||
| N0.9 | Polished with endless belt numbered over 320. |
||
| BA | Given high-luster finish and subjected to bright heat treatment after cold rolling. |
||
| HL | Polished with abrasives No.80 to 150 specified in JIS R6001 to obtain continuous streaks. |
||
| N0.7 | Buffed so that reflectivity is higher, compared to #400 finish. |
||
| N0.8 | Given BA finish and polished with cotton buff to obtain high reflectivity. |
||
| Emboss | Provided with irregularities on one side by cold rolling
(both sides can be embossed). |
For more information on NIPPON STEEL Stainless Steel Corporation materials, click the link below.
Click here for stainless steel catalog
Notice
These material information in this page is based on NIPPON STEEL Stainless Steel Corporation product catalog.
There are some cases maker do not accept the production depending on the production lot and specification.
Technical information in this website,while every reasonable effort was made to ensure the accuracy at the time of this publication, is general information relating to our products only and is not meant as any warranty,expressed or implied.
Such technical information does not guarantee that any of our products are suitable for your particular application or purpose. Use of any information contained in this website shall be at user's risk. Any information in this website is subject to change without prior notice. Please contact our company for up-dated information.
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