Aaj kal market mein stainless steel kai alag alag grades mein aata hai — 200 series, 300 series, 400 series aur bhi bahut saare. Lekin India mein ghar, office aur factory mein sabse zyada jo 3 grades use hoti hain woh hain SS 202, SS 304 aur SS 316. Aur sabse badi problem yeh hai ki teeno dekhne mein bilkul ek jaisi lagti hain.
Yahi wajah hai ki India mein stainless steel fraud bahut common hai. Dealer 202 ko 304 bolkar bechta hai, aur customer ko pata hi nahi chalta. Jab tak product kharab hona shuru hota hai, tab tak bahut der ho chuki hoti hai.
Toh sawaal yeh hai — SS grade kaise pata kare? Aur ghar par khud test karna possible hai?
Jawab hai — haan, bilkul possible hai. Aage poori information hai.
SS 202 Kya Hota Hai?
SS 202 India mein sabse sasta aur sabse zyada bikne wala grade hai. Yeh 200 series ka steel hai jisme nickel ki jagah manganese use hota hai — isi wajah se yeh sasta hota hai.
Kahan use hota hai: Saste furniture, decorative railings, utensils jahan paani kam lagta ho, automotive trim.
Kya dikkat hoti hai: Yeh grade namak, paani aur humid environment mein jaldi rust karta hai. Welding ke baad corrosion aur bhi tez hoti hai. Indoor dry environment mein theek chalta hai lekin outdoor ya kitchen mein long term ke liye sahi nahi.
SS 304 Kya Hota Hai?
SS 304 duniya ka sabse popular stainless steel grade hai. Isme 18% chromium aur 8% nickel hota hai — isi combination ko "18/8" bhi kaha jata hai. Yeh food grade steel hai aur BIS standard ke hisab se kitchen sinks ke liye recommended hai.
Kahan use hota hai: Kitchen sink, cookware, quality railings, hospital equipment, food processing.
Kitna tikta hai: Sahi environment mein SS 304 15 se 20 saal tak easily chal sakta hai. 202 ke mukable mein yeh corrosion resistant bahut zyada hota hai.
SS 316 Kya Hota Hai?
SS 316 mein ek khas element hota hai — Molybdenum (2 se 3%). Yahi cheez ise 304 se alag aur behtar banati hai. Molybdenum ki wajah se yeh grade chloride aur salt ke against bahut strong hota hai.
Kahan use hota hai: Samundar ke kareeb construction, chemical factories, medical instruments, marine equipment, pharmaceutical industry.
Kyun mehnga hota hai: Molybdenum ek expensive element hai — isi liye 316 ka price 304 se zyada hota hai. Lekin jahaan corrosion resistance critical hai, wahan 316 hi sahi choice hai.
Teen Grades Ka Quick Comparison
SS 202: Sasta, kam corrosion resistance, indoor use ke liye theek
SS 304: Mid range price, food grade, ghar aur industry dono ke liye best
SS 316: Sabse mehnga, molybdenum wala, harsh environment ke liye
Ghar Par Khud SS Grade Test Kaise Kare?
Yahan sabse important sawaal aata hai. Lab mein jaaye bina, khud kaise pata karein ki steel konsa grade hai?
Sabse reliable aur easy tarika hai MOLY SS Grade Testing Liquid. Yeh ek chemical solution hai jo sirf 30 seconds mein bata deta hai ki steel 202 hai, 304 hai ya 316.
MOLY test karne ke liye kya chahiye:
- MOLY testing liquid bottle
- 9V battery with connector
- Test karne wala steel surface (saaf aur sukha hona chahiye)
MOLY Se Test Kaise Karte Hain — Step by Step
Step 1: MOLY bottle ki tip par ek chota hole karo aur steel ki surface par ek chota drop daalo.
Step 2: 9V battery ka negative (-) pole chemical drop par rakh do.
Step 3: Jab drop lal (red) ho jaaye, battery hata lo.
Step 4: Ab result dekho:
Lal (Red) colour aaye aur der tak lal raha — yeh SS 316 hai.
Lal (Red) colour aaye aur turant gayab ho jaaye — yeh SS 304 hai.
Kaala (Black) colour aaye aur der tak kala raha — yeh SS 202 hai.
Itna simple hai. Na koi lab, na koi expert — khud ghar par ya dukaan par hi pata chal jaata hai.
Fraud Se Kaise Bachein?
India mein stainless steel fraud bohot common hai — specially railings, kitchen sink aur utensils mein. Dealer 202 ko 304 bolkar bechte hain kyunki dekhne mein dono bilkul same lagte hain.
MOLY test se aap:
- Kharidne se pehle hi check kar sakte hain
- Dealer ke saamne hi prove kar sakte hain
- Galat material lene se bach sakte hain
- Apne customers ko verified quality de sakte hain
Ek chhoti si bottle — kai fraud se suraksha.
Kab Test Karna Chahiye?
Railing lagwane se pehle — contractor jab material laaye toh check karo.
Kitchen sink ya chimney kharidne se pehle — showroom mein hi test karo.
Purana furniture ya equipment check karne ke liye — grade pata karo.
Fabricators aur contractors ke liye — har lot mein check karo.
MOLY Testing Liquid Kahaan Se Milega?
MOLY SS Grade Testing Liquid SHILPIND ke official store par available hai. Kit mein liquid bottle, 9V battery aur connector sab included hai. India mein delivery available hai.
Ek kit se aap saikdon tests kar sakte hain — ek baar kharidne ke baad baar baar kaam aata hai.