Shanghai Tankii Alloy Material Co.,Ltd
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- Home>
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- Martensitic Stainless Steel Welding Wire – Grade 420
- Product Details
- Company Details
Product Specification
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| Payment Terms |
T/T,Western Union,D/P,D/A,L/C |
Supply Ability |
500tons/Kg |
| Delivery Time |
3-15kg |
Packaging Details |
case |
| AWS A5.9 Classification |
ER420 (UNS S42080) |
Wire Diameter Range |
0.8 mm – 3.2 mm (0.030" – 1/8") |
| Diameter Tolerance |
±0.01 mm (≤ Ø1.2 mm); ±0.02 mm (> Ø1.2 mm) |
Surface Finish |
Bright, pickled, copper-free, Ra ≤ 0.2 µm |
| Standard Spool |
D200 (5 kg) / D300 (12 kg) / K300 (15 kg) / Drum 250 kg |
Shielding Gas |
98 % Ar + 2 % O₂ (MIG) / 100 % Ar (TIG) |
| Brand Name |
Tankii |
Model Number |
ss420 |
| Certification |
ISO9001 |
Place of Origin |
China |
| High Light |
Martensitic stainless steel welding wire
，Grade 420 welding wire
，Stainless steel wire with warranty
|
A. Chemical Composition (wt %, single value = max)
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C: 0.25 – 0.40 Cr: 12.0 – 14.0 Ni ≤ 0.6 Mn ≤ 0.6
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Si: 0.30 – 0.65 P ≤ 0.030 S ≤ 0.030 Mo ≤ 0.75 Cu ≤ 0.75
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Ferrite Number: 0 – 3 FN (fully martensitic after air-cool)
B. Mechanical Properties (as-welded, 3-layer, Ar+2 %O₂)
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Tensile Strength (Rm): ≥ 690 MPa (100 ksi)
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Yield Strength (Rp0.2): ≥ 550 MPa (80 ksi)
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Elongation (A5): ≥ 15 %
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Impact Charpy-V: ≥ 27 J @ –20 °C (–4 °F)
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Hardness: 30 – 35 HRC as-welded | 45 – 50 HRC after PWHT (temper 200 °C / 1 h)
C. Welding Recommendations (Ø1.2 mm, flat)
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Current: 160 – 220 A Voltage: 24 – 28 V Stick-out: 15 mm
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Travel Speed: 25 – 45 cm min⁻¹ Heat Input: 0.6 – 1.0 kJ mm⁻¹
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Inter-pass Temp.: ≤ 250 °C Post-weld: immediate temper 180 – 220 °C to avoid hydrogen crack
D. Diffusion Hydrogen Content
E. Standards & Approvals
1 Above-the-Fold Hero
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Headline:
“ER420 Martensitic Stainless MIG/TIG Wire – High-Strength, Wear-Resistant, 45 HRC After Temper”
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3-bullet Value Proposition
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690 MPa tensile as-welded – ideal for blades & shafts
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Precision layer-wound, zero tangle at 20 m/min robot feed
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Vacuum + VCI packaging, 5-year shelf life, lot-traceable MTC 3.1
2 Image / Video Block
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Macro-photo: spool + close-up of bright wire surface
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15-sec silent video: robot MIG welding 420 shaft, shiny ripple, zero spatter
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Hardness chart: as-welded vs tempered bar graph (30 → 50 HRC)
3 Specs Tab (collapsible)
Insert Table-1 & Table-2 above; add downloadable PDF datasheet (link to Google Drive / CDN)
4 Applications Grid
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Plastic injection screws & barrels
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Food-processing knives / meat-grinder plates
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Pump shafts, valve stems, bearing sleeves
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turbine blade repair overlay
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firearm slides & chokes
5 Certifications Strip
AWS A5.9 / CE / TÜV / RoHS icons in grey scale → click to open certificate PDF.
6 FAQ Accordion
Q: Can ER420 weld to 304 stainless?
A: Not advised – brittle martensitic/Austenitic interface; use 309L buffer then 420 overlay.
Q: Do I need pre-heat?
A: For sections > 12 mm pre-heat 250 °C and maintain inter-pass ≤ 250 °C.
Q: Best way to reach 50 HRC?
A: Weld → cool to < 80 °C → temper 200 °C (1 h) → air cool. Repeat for 2 h to convert retained austenite.
7 CTA Banner
“Request 5 kg Trial Spool – 48 h Global Dispatch”
Button 1: Add to Cart | Button 2: RFQ for 250 kg Drum
8 SEO Snippet (≤ 155 chars)
ER420 stainless welding wire, 690 MPa, 45 HRC after temper, 0.8-3.2 mm, vacuum spool, fast world-wide shipping.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
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Business Type:
Manufacturer,Exporter
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Total Annual:
8000000-100000000
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Employee Number:
90~100
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Ecer Certification：
Verified Supplier
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